hybridfree/eevblog-posts huggingface dataset:
Open Source thermocam kit - Page 1
Forum section: electronics / general

author: hammy
author_rank: Unknown
timestamp: September 23, 2016, 09:05:04 pm
content: Opensource thermocam kit based on the brand new flir lepton sensor:http://www.diy-thermocam.net/"The firmware, the USB protocol, the raw data files and the thermal viewer are completely open-source. This allows everyone to modify or extend the functionality of the device to their own needs!"Cheershammy

author: onesixright
author_rank: Frequent Contributor
timestamp: January 13, 2017, 11:55:02 pm
content: Page /Site is blanc in Safari (Mac / OSX).In the source I see there is a frameset, pointing to:https://github.com/maxritter/DIY-Thermocam

author: hammy
author_rank: Unknown
timestamp: January 14, 2017, 12:39:26 am
content: Quote from: onesixright on January 13, 2017, 11:55:02 pmThis link is 3 months old. Give it a try with "DIY-Thermocam" in a search engine ...https://maker-faire.de/maker/berlin/2016/diy-thermocam/
Wondering what folks think about the EEZ H24005 power supply project. - Page 1
Forum section: electronics / general

author: rocketguy
author_rank: Newbie
timestamp: January 10, 2017, 01:19:11 am
content: Hi all,Just curious as to the impression that this project is making, I'm considering it since I only have a bodged ATX bench supply and this looks like a really nice step up. I am however, not an EE, so figured I might see what others thought before making the case to the CFO for it.https://www.crowdsupply.com/envox/eez-h24005?utm_source=EEZ+Power+Supply

author: garnix
author_rank: Contributor
timestamp: January 10, 2017, 12:27:13 pm
content: The author also seems to be on this forum, there is already a thread with many details:https://www.eevblog.com/forum/projects/diy-programmable-dual-channel-bench-psu-0-50v3a/And a "Crowd-Funding" thread here:https://www.eevblog.com/forum/crowd-funded-projects/preparing-eez-h24005-for-crowdfunding/

author: rocketguy
author_rank: Newbie
timestamp: January 13, 2017, 04:11:27 am
content: Cool! Thanks!
Orange PI OR ANY ALLWINNER H3 PCB design files - Page 1
Forum section: electronics / general

author: free_electron
author_rank: Super Contributor
timestamp: January 09, 2017, 08:07:18 pm
content: Does anyone have PCB design files ( Gerber is also working , but any other format is welcome ) for the Orange Pi or any Alwinner H3 based design ?I am after the breakout of the 0.65mm BGA ... Yes i am rolling my own. None of the available boards fit my purpose or have the hardware mix / formfactor i want.

author: Wilksey
author_rank: Super Contributor
timestamp: January 10, 2017, 01:31:06 pm
content: Is this of any use?https://github.com/OLIMEX/OLINUXINO/tree/master/HARDWARE/H3-OLinuXinoProbably in Eagle format
Hackaday OpenMV Talk - Page 1
Forum section: electronics / general

author: ToeJam
author_rank: Contributor
timestamp: December 29, 2016, 09:59:20 pm
content: Hi all;I just wanted to point you toward this Hackaday talk.Kwabena talks a bit about what OpenMV is, but also gives some great pointersfor anyone thinking of beginning a Kickstarter type fund raiser from his own experience.I haven't done any fund raiser like that myself, and I found what he says to be a great help.Thanks to Kwabena W Agyeman.CheersKeithScottish Borders
PSoC 5LP Analog Sensor Board - Page 1
Forum section: electronics / general

author: maleetronic
author_rank: Newbie
timestamp: November 15, 2016, 09:46:42 pm
content: Hello,I would like to introduce my just recently released analog sensor board, based on an PSoC 5LP.It has several analog output sensors on board, as well as memory and an character display.This is my first open hardware project and I would like to get your feedback about it.At the moment, I am implementing the isoSPI and the BME280 into the demo application.I have attached a photo of the board and here is the link to the documentation page for more detailed information:http://www.maleetronic.com/boardsprojects/mlt-psoc5lp-analog-sensor-board/Thanks...
Linux kernel 4.8 supports opensource VHDL processor - Page 1
Forum section: electronics / general

author: daybyter
author_rank: Frequent Contributor
timestamp: October 06, 2016, 09:20:13 pm
content: Hi!Seems like support for the j-core cpu was merged for 4.8.

author: Someone
author_rank: Super Contributor
timestamp: October 26, 2016, 04:20:29 am
content: Interesting they work to a HLL and readable approach but use a 2 process model, which loses a lot of the HLL features available in VHDL but keeps your register stages clear. The synthesiser will rip that sort of strict design apart if allowed to replicate paths and push/pull registers. Their final FPGA utilisation results aren't fantastic but its not been optimised heavily for those targets so it may do very well in ASICs, once its more widespread a heavily FPGA optimised version could be worthwhile.
Beaglebone Black Wireless released  - Page 1
Forum section: electronics / general

author: anh
author_rank: Newbie
timestamp: September 27, 2016, 04:06:43 am
content: As the name implies, this is pretty much the same thing as a BBQ, but with WiFi and Bluetooth and no Ethernet:https://beagleboard.org/blog/2016-09-26-meet-beaglebone-black-wireless/The price seems to depend on location and supplier, and could change as no supplier has stock yet, but seems to be somewhere between USD 68 and 99.The source files (CC-BY licensed) are available athttps://github.com/beagleboard/beaglebone-black-wirelessI'm a fan of the BBB (well documented, buyable chip is the most important factor here), but I still find it in the more expensive side.

author: irda86
author_rank: Contributor
timestamp: September 27, 2016, 02:11:20 pm
content: Quote from: anh on September 27, 2016, 04:06:43 amThanks for the post!The TI CPUs have usually been "open source" friendly with no binary blobs I believe (except maybe those for GPU), what about the Wireless part of this SiP?

author: ebclr
author_rank: Super Contributor
timestamp: September 27, 2016, 02:32:26 pm
content: Mouser stock is 0 they have ordered 5000 pcsand 15 is already in backorder

author: anh
author_rank: Newbie
timestamp: September 27, 2016, 03:42:28 pm
content: I just checked the schematics and found it uses a TI part (no surprises here):http://www.ti.com/product/WL1835MODIt has a 46-page datasheet, but this datasheet does not describe protocols or anything. Digging a bit deeper, I reached a wiki with information about Linux Drivers and SDK for several processors  and this integration guide for generic chips running Linux.Looking at the stack, and googling for wl18xx, sifting through some guides, I found the blob:http://git.ti.com/wilink8-wlan/wl18xx_fw/trees/masterSo, there you go. There's lot of support, drivers, and build instructions. However, there is a firmware blob with no source code available.http://processors.wiki.ti.com/index.php/WiLink8_Linux_Getting_Started_Guidehttp://processors.wiki.ti.com/index.php/WL18xx_Platform_Integration_Guide
looking for microstepping bipolar motor driver based on atmel MCU - Page 1
Forum section: electronics / general

author: nour
author_rank: Frequent Contributor
timestamp: September 23, 2016, 04:49:13 am
content: Hi,As we are in the OSHW section I am looking for a design (hardware andsoftware) for bipolar stepper motor driver that is based on Atmel AVR or ARM (preferably AVR) and does support micro-stepping.I am asking for Atmel because currently it is the only MCU that I have mastered the programming tool chain and I have already different MCU versions and programmers for it.I can design and make the hardware but I am not good enough to program it!!Micro-stepping is hard and not easy to implement it in a good way!My general idea would be some MOSFETs with gate driver and MCU with the proper protection.Hope someone would help

author: poorchava
author_rank: Super Contributor
timestamp: September 23, 2016, 05:45:17 am
content: I kinda think that any AVR will lack power and/or peripherals to do microstepping at any reasonable rate.You basically need a high resolution ADC or good DAC + comparators for monitoring current and a PWM generator (preferably an advanced one). For calculating some simple PID for current regulation AVR processing power should do (at least I think so) if you use fixed point math.Sent from my HTC One M8s using Tapatalk

author: Mechatrommer
author_rank: Super Contributor
timestamp: September 23, 2016, 06:32:52 am
content: 3 pins microstep option programming... if around 1A current is all you are asking...http://www.ebay.com.my/itm/5PCS-A4988-Stepper-Motor-Driver-Module-3D-Printer-Polulu-StepStick-RAMPS-RepRap-/221921771439?hash=item33ab917faf:g:BpsAAOSwl9BWKyv1

author: nour
author_rank: Frequent Contributor
timestamp: September 24, 2016, 05:22:03 am
content: Quote from: poorchava on September 23, 2016, 05:45:17 amYes you are write that's why I also added ARM based MCU, but even so I don't think this process requires a high resolution DAC because if you think about it a 12 bit DAC will do the job for 1/16 stepQuote from: Mechatrommer on September 23, 2016, 06:32:52 amI am looking for doing high power driverI have used the A4989 with FDD2572 and build the pcb myself the whole thing cost me less than 10$ and I have 500W driver.But I want to know how much it will cost to develop a the same thing with individual components, yes I know it will be much more and most likely will consume more time, but I want to know does it worth it or not!also I have searched but couldn't find anything MCU based that can be name as high power driver with microstepping!!

author: nour
author_rank: Frequent Contributor
timestamp: September 24, 2016, 01:59:19 pm
content: There is one thing I have forgot to mention that I want to be able to drive motors with more than 50 volts.Most of the monolithic solutions are not capable of more than 50V !
Open/Source Hardware + Blockchain? - Page 1
Forum section: electronics / general

author: ToeJam
author_rank: Contributor
timestamp: September 09, 2016, 09:28:35 pm
content: Hi all;I don't post here often, so forgive me if I'm breaking any rules.In response to Dave's recent video about the problems with Open/Source Hardware, and what he posits there, I thought that the blockchain technology behind bitcoins could help here.There are a few projects being set up to make 'Virtual Nations' where marriages, contracts, land registry and other events are being recorded. Ethereum is one, NXT and Ardour is another. Project Douglas attempts to provide a framework for a system of your own. So far as I know none deal directly with OSHW, patents, copyright or trademark.Would it be possible to create some version where the aspects of hardware are recorded? I'm behind the curve on blockchain, but have heard a lot about the possibilities.Example:A person with a product creates a new entry in the blockchain, and associates with it the aspects which are protected, partly protected, open, and those that are freely available. A new version of a single board computer might be able to release the PCB as freely available, but restrict some aspect of the firmware.An additional aspect would be the ability to associate licenses with the product, producers and consumers.It might seem like this is the bureaucracy that we are trying to avoid, but it is a de-centralised system, where the designer makes the choices, outside of the governments.This is similar to patents, copyrights and trademarks.Could those be replaced with this system also?What to call the system?As a long-time user of GNU/Linux, I'd like to pay homage to Richard Stallman for his simple, yet revolutionary idea of freedom in software, possibly by calling it 'RMSBits' or something similar.But I think I'll need to seek permission for that.Thanks in advance for all your input.
I made a small and little intelligent camera called Eieye. - Page 1
Forum section: electronics / general

author: wodish
author_rank: Newbie
timestamp: May 17, 2016, 05:39:07 am
content: Hello,I like Pixy and openmv very much .So I made a new one with my partner.It made of STM32F407,OV7725 and USB3300.It can recognize 128 target in 8 colors in 40Hz depends our algorithm .Please forgive my pool English.This is a demo below.http://v.youku.com/v_show/id_XMTU0NTMzNjQ2MA==.html?from=s1.8-1-1.2You can download schematic athttp://eieye.88448.com/viewthread.php?tid=90140&extra=page%3D1

author: Docholiday
author_rank: Regular Contributor
timestamp: July 03, 2016, 12:42:56 am
content: English translation would be nice.

author: scanlime
author_rank: Newbie
timestamp: August 09, 2016, 08:22:10 pm
content: It looks neat! I'm curious to know more, but I do feel a bit lost as I only speak English.

author: Mechatrommer
author_rank: Super Contributor
timestamp: August 10, 2016, 10:11:10 am
content: Quote from: wodish on May 17, 2016, 05:39:07 amretry blue ball on blue background...btw, the object recognition is it done in fpga? or mcu?

author: ez24
author_rank: Super Contributor
timestamp: August 20, 2016, 03:59:56 am
content: Quote from: wodish on May 17, 2016, 05:39:07 amSince there is no speech in this video, post it on Youtube. If this is a project that you want to make money on and let the world know, invest some money and hire a local English teacher to narrate a video for Youtube. And also if you want to publish something in English, hire a local English teacher (native speaker). Maybe even for this forum. They always welcome extra income. Or partner with blueskill ha ha. The cost would be what they get per hour at a language school, so this is not a large expense. I am always bummed at the poor English coming out of China with so many English teachers there that want more work (I used to be one).The next video I would like to see is have the camera re-focus on a red balloon that goes across the path of the orange one. ie two colors
Li-po  - Page 1
Forum section: electronics / general

author: Michaelbradford
author_rank: Contributor
timestamp: February 24, 2017, 03:19:49 am
content: Hi can anyone help me can I charge a 18 v Li-po battery with a DC power supply if not what route would be suggested thanks

author: dferyance
author_rank: Regular Contributor
timestamp: March 01, 2017, 05:27:34 pm
content: You can find plenty of info on LiPo charging online. Basically it is a combination of constant current and constant voltage charging. Due to the high voltage, you must have multiple cells. In that case it may be trickier to balance the cells. Also be sure to monitor temperature to avoid something catastrophic while charging. I'd say use a charger designed for it. Presumably you will want to charge it multiple times right?

author: ohdsp
author_rank: Contributor
timestamp: March 07, 2017, 02:06:04 pm
content: You'll need to make sure you have the full spec of the battery, max charging current (can be specified as a multiple of the battery capacity) and the float voltage.

author: CraigHB
author_rank: Regular Contributor
timestamp: March 07, 2017, 03:11:55 pm
content: Balancing is an important consideration when charging Li-Ion cells in series. It's possible to pack charge with just two wires, but imbalances occur that can cause premature wear and in the worst case can result in a safety hazard. You generally don't see consumer products charging that way, they normally balance the cells, but you can get away with pack charging if you balance every few cycles. Of course if a proper balance charger is available there's no reason to ever charge the pack with only two wires, just balance charge every time.

author: HSPalm
author_rank: Regular Contributor
timestamp: March 09, 2017, 10:07:27 am
content: The easiest way to safely charge a multi-cell lipo with your dc power supply is to put a real lipo charger in between the supply and the lipo.I recently upgraded my lipo charger tothisand are very happy with it. You also have less powerful versions likethisandthis, in case you don't have a very powerful dc power supply to fully make use of it.The main difference between the newer and older lipo chargers in the budget-range is the way they balance the cells. The typical four-button chargers like the B6/B6AC charge the whole pack until one cell is 4.2 volts, then discharge the cell to the level of the next highest cell, charge the full pack again and keeps at it until all are equal. The isdt chargers actually charges the cells individually instead of discharging them, which makes balancing faster and probably more accurate (?). The balancing current is not as high as the rated charge current, but keep in mind that the balancing current is only used at the very end of the charge cycle unless you have a very badly unbalanced pack.You can see Dave's video on charging a single cell to get an idea of what is happening per cell when balancing a multi-cell pack:
uCurrent Virtual Ground - Page 1
Forum section: electronics / general

author: mchamster
author_rank: Newbie
timestamp: July 04, 2016, 07:52:15 am
content: Good morning!I'm working on a project (it'll be OSH) with a part of the circuit taking inspiration from Dave's original uCurrent. I've read his writeup and have a question on the virtual ground.I'm trying to improve the measurement range of the device, up to 3A off a 3.3v power supply. What I've come up with is to change the voltage divider to values of 100k / 10k which will give a virtual ground of 300mv. With the virtual ground of 300mv, I can measure currents up to just under 3A which is fine. If the device under test (@ ~3A) is wired backward, the measurement range will be buggered up, but that just means that ensuring proper polarity is important though it shouldn't fry the circuit.Are there any other down sides to this arrangement?I've modeled this in LTSpice and it seems to check out, but I'm new to LTSpice and don't yet trust what I'm seeing.Thanks!- Jm

author: EEVblog
author_rank: Unknown
timestamp: July 04, 2016, 08:00:54 am
content: No reason you can't use a single ground referenced supply. IIRC the amp senses down to the negative rail.

author: kandrey89
author_rank: Contributor
timestamp: July 05, 2016, 01:39:32 am
content: Now if it could measure pA to 3A, that would be something
I made a site to share OSHW projects - Page 1
Forum section: electronics / general

author: kasbah
author_rank: Contributor
timestamp: June 01, 2016, 01:45:29 pm
content: This is currently git-backed but could be expanded upon to not need git. The idea is to use a standard BOM and a sort of manifest file to easily make a page from which you can download the Gerbers and put the parts into your Digikey/Mouser/Farnell etc. shopping carts with a single click.Check it out atkitnic.itand please let me know any thoughts or questions. Would love to help people get their projects up on the site. Kitnic itself is open source too and the code is shared on GitHub.
Modular VFD clock - Page 1
Forum section: electronics / general

author: Cloud
author_rank: Regular Contributor
timestamp: November 03, 2015, 09:54:20 pm
content: This project started as a school assignment, where we had to do something with a microprocessor and since I had a few IV-6 VFD lamps, some RTC modules and MAX 6920/6921 controllers lying around, I decided to make a VFD clock. But because most of the designs on the internet are also displaying seconds I decided to go without it. But the main point is, that the control and display boards are swappable it is possible to just make a shield for a different VFDs or maybe nixies. Please see attached pdf and tell me what you think and what would you change.

author: Raj
author_rank: Frequent Contributor
timestamp: May 16, 2016, 10:02:58 am
content: i would have used an rtc that could keep time accurately up to a onth and hook it up to a system that can set it every day.I've tried ds1307...but it needed me to set time every month so i did this thing... hooked it with my computer vis usb to ttl which sends current time to my atmega8 every time it turns on.
Open Hardware Action Camera - Page 1
Forum section: electronics / general

author: SimonWasAnEngineer
author_rank: Contributor
timestamp: March 08, 2016, 08:12:49 am
content: Hi all.Has anybody ever heard of an Open Hardware Action Cam? I know there are several cheap ones (e.g. Xiaomi Yi) but they all use an ambarella SOC.And for these chips you can´t even find a datasheet nor do they sell them in low quantities, are there any alternatives?

author: TonyD
author_rank: Contributor
timestamp: March 26, 2016, 12:42:35 am
content: Closest I've seen is something based on the Raspberry Pi (Model A??) & it's camera module. I can't find the link but I'm sure a quick google will find it.

author: david-IT
author_rank: Contributor
timestamp: March 28, 2016, 10:29:44 am
content: i ever saw this

author: lorth
author_rank: Contributor
timestamp: April 26, 2016, 11:53:30 pm
content: Quote from: SimonWasAnEngineer on March 08, 2016, 08:12:49 amThey don't even meet with massive companies unless you guarantee >100kU/year....
Gamegirl: the retro console done right - Page 1
Forum section: electronics / general

author: davidperrenoud
author_rank: Newbie
timestamp: April 02, 2016, 05:43:36 pm
content: Hello,I wanted to ask your advice about my recent project:https://hackaday.io/project/10207-gamegirl-the-retro-console-done-rightSome technical details especially for you electricians:HDMI/DPI mode for the display (no SPI protocol rubbish!)MCP73831 battery chargerPAM8302 amplifier + low-pass RC filter + audio through PWM1 on the PiBacklight through PWM0 or PCM_CLKNo boost converterFor this last point, has anyone tried to power a Raspberry Pi directly from a Li-Po (3.7V-4.2V) connected to both the 5V and 3.3V connector?I think the BCM2835 can tolerate the higher voltage on the 3.3V rail. The 5V rail has to be connected because the switching mode power supply (PAM2306) uses it to power the 1.8V rail.

author: Mechanical Menace
author_rank: Super Contributor
timestamp: April 21, 2016, 12:29:38 pm
content: Personally I'd say it's not a retro style console, just another RPi with some emulators in a gameboy style case. How would it be better than a phone in one of the many gaming cases that are cheaply available?Not saying it's not a cool little project but calling it "a retro console done right" is misleading at best. Can you even do bare metal coding on a Pianduse all the peripherals? As somebody who likes messing with coding for retro consoles from the 8 bit era up to the Wii (no OS getting in the way so in my view the last retro console from a devs point of view) the inability to try and get more out of the machine because of that limitation would put me off of bothering with it given the tag line.EDIT:Also what "retro homebrew dev" wants to be writing games and/or apps as Lua scripts? A quick search told me your first 3 poll options could just be replaced with one option, "using Lua."EDIT the 2nd: Really don't mean to sound so down on the project. It really is cool. Throw in devkits for the emulated machines, HDMI out, and some way to connect a keyboard and it could be "The ultimate retro emulation station and devkit." Make enough I/Os available to allow people to use it as a 8 or 16 bit cartridge with adapters on some sort of expansion port and even better.

author: davidperrenoud
author_rank: Newbie
timestamp: April 22, 2016, 07:26:33 am
content: It's better than a phone because it's made to only play games. For developers, you can customise the hardware in any way you want and the software stack is much thinner (OpenELEC + RetroArch + C or Lua).If you want a bare metal console, it's maybe easier to start with anArduboy. Of course it won't be as powerful and you won't have all the ease of use of a filesystem, OpenGL, USB peripherals, etc.But you can actually do bare metal on a Pi and that would be really cool if someone tried it. You would have to find a way to enable the DPI mode, do PWM audio and read the buttons:http://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/os/index.html
OpenHardware.io - Page 1
Forum section: electronics / general

author: hek
author_rank: Newbie
timestamp: April 13, 2016, 12:23:26 pm
content: Hi,I've been running the MySensors.org community for some time and we saw many great open hardware projects popping up on the forum. So I decided to create something a bit more user-friendly for the community members to administrate their open hardware projects.Here is the result:https://www.openhardware.ioThis is a place where you can create and share open hardware projects. You can also easy keep them in sync with a github repository if you want.We allow authors to sell their boards on eBay or by letting our manufacturing partners produce and ship them (which will render the author a commission).Hope to get more people to help test it out and perhaps give some feedback.

author: anker_by
author_rank: Contributor
timestamp: May 08, 2016, 09:05:32 pm
content: Nice resource, I will take sometime to discovery the webpage., Update: this so good to pratice on my Lab

author: scanlime
author_rank: Newbie
timestamp: August 08, 2016, 07:35:13 pm
content: Looks nice! I tried adding one of my projects from GitHub. I'll be exploring it more soon
Port 25 blocked - Page 1
Forum section: electronics / general

author: TomassPar
author_rank: Newbie
timestamp: March 14, 2016, 10:52:09 pm
content: Hello, please help me!I'm using Windows Live Mail and when I'm trying to send a e-mail the error pops-up. It's says that port 25 is blocked. I try port 465, 587, 2525 and other kind of ports, but nothing happens.I can receive a e-mail from others, but can't send back. (Sorry for my English!)I will be thankful for any advice from you guys.

author: RGB255_0_0
author_rank: Frequent Contributor
timestamp: March 14, 2016, 11:00:15 pm
content: The others are TLS/SSL do check you tick the SSL box if you try those ports. Also your ISP may be blocking due to spammers on their network.This is all assuming you don't have a firewall blocking you on your pc or network.First point of call? ISP's forums.

author: sleemanj
author_rank: Super Contributor
timestamp: March 14, 2016, 11:03:07 pm
content: This isn't really the right forum for this sort of question, and has nothing to do with Open Source Hardware I can see.Contact your internet service provider (and email service provider if they are different) for assistance with your email configuration. ISP's regularly block port 25 from leaving their network, but they should be allowing port 587, and any email server operating as a smart (relay) host should be accepting authenticated connections to port 587 (SMTP submission)
51 microcontroller interrupt program,what is the implementation process? - Page 1
Forum section: electronics / general

author: david-IT
author_rank: Contributor
timestamp: March 24, 2016, 10:25:30 am
content: #include<reg52.h>void main(void){EA=1;EX0=1;IT0=1;P0=0xff;while(1);}void it0(void) interrupt 0 using 0{P0=~P0;}when interrupt,what is the progress?
search for a BIG pcb layout - Page 1
Forum section: electronics / general

author: hammy
author_rank: Unknown
timestamp: October 14, 2015, 10:02:49 pm
content: HiI'm searching a PCB layout file, maybe an old computer motherboard. Something in this size and complexity.Eagle or Target file format would be handy. The complexest designs I can find are just arduino shields.But I'm searching such an old school big pcb.Does anyone have a link or a file?Thank you!Cheershammy

author: daqq
author_rank: Super Contributor
timestamp: October 27, 2015, 09:19:26 am
content: QuoteMost of the stuff I know of is in Altium or Cadence. See:https://www.turris.cz/en/hardware-documentationThen there's Novena, CERN has some open stuff, various reference designs from freescale and similar, Autodesk open sourced their 3D printer... but none of that is in Eagle.

author: Scrts
author_rank: Frequent Contributor
timestamp: October 27, 2015, 10:20:14 am
content: I think all Altera development kits have PCB designs available to download in OrCAD format. Pick a bigger one, will get at least 16 layers PCB I suppose. E.g.:https://www.altera.com/products/boards_and_kits/dev-kits/altera/kit-arria-v-soc.htmlDownload the kit installation files.

author: Karel
author_rank: Super Contributor
timestamp: October 30, 2015, 12:43:27 pm
content: Quote from: hammy on October 14, 2015, 10:02:49 pmHere:https://github.com/OLIMEX/OLINUXINO/tree/master/HARDWARE/A20-OLinuXino-MICRO

author: hammy
author_rank: Unknown
timestamp: October 30, 2015, 04:02:46 pm
content: Thank you!

author: BloodyCactus
author_rank: Frequent Contributor
timestamp: November 01, 2015, 05:03:37 pm
content: an Amiga 1000/3000 hybrid motherboard (like full size atx) in eagle.http://www.gb97816.homepage.t-online.de/download/a1kboard_00.zip

author: hammy
author_rank: Unknown
timestamp: November 01, 2015, 05:42:45 pm
content: Quote from: BloodyCactus on November 01, 2015, 05:03:37 pmCool! Thank you! Exactly what I was looking for.(Eagle 7.4 was not able to open the old 3.55 files. At first I had to use 5.11 to open and save them.)A nice board! Over 4000 pins. A really good performance test.Thank you!hammy

author: Doctorandus_P
author_rank: Super Contributor
timestamp: January 04, 2016, 10:04:13 pm
content: I think beaglebone and / or Raspberry pi is available in KiCad.
Nick Sayer: DFM: Building 10^n isn't the same as building one  - Page 1
Forum section: electronics / general

author: SeanB
author_rank: Super Contributor
timestamp: December 24, 2015, 05:42:27 pm
content: Nick Sayer: DFM: Building 10^n isn't the same as building oneA little detail from Hackaday, and why building a one off is a little easier than a thousand.

author: pmbrunelle
author_rank: Regular Contributor
timestamp: December 31, 2015, 04:46:47 am
content: Not the same.But like he said, the key is prototyping.Before going into production, you want to assemble progressively larger batches of parts, with feedback from production at each iteration.Hopefully with each refinement/iteration there is some sort of convergence going on...The idea is also to debug/tune the production tooling jigs, and not only to refine the product design.

author: Kalvin
author_rank: Super Contributor
timestamp: December 31, 2015, 02:47:40 pm
content: It really doesn't hurt either to let someone else to assemble and test few boards as well.
an arduino quadruped 'spider' kit (and my own hack) - Page 1
Forum section: electronics / general

author: linux-works
author_rank: Super Contributor
timestamp: December 05, 2015, 06:17:17 pm
content: from a company called 'sunfounder':you add 4 18650 li-ion batteries and that's it, everything else is included. the arduino shield hack is my doing - that is not part of the kit (lol). but it comes with 2 arduino nano modules (strange, though: pl2303 chip based for usb/serial, not the ch340 and not the fake/real ftdi chips). it runs open source code that sunfounder provides.took me about half a day to read thru it and build it. it went together very nicely, in fact. you have to calibrate the legs (lol) and that was a little time consuming but it was a one-time process.I'm doing some testing on another arduino board that is NOT in the nano form factor and so I had to throw together this adapter hack. it works though, and I was able to do some porting/testing on that other board.kit is about $130 and since all the parts are included and the cost was not much above the raw parts cost, I treated myself to an interesting learning toy.

author: SL4P
author_rank: Super Contributor
timestamp: December 05, 2015, 07:14:52 pm
content: nice photo, not much more?links, features, what did your mods add?

author: linux-works
author_rank: Super Contributor
timestamp: December 05, 2015, 07:25:45 pm
content: vendor link:http://www.sunfounder.com/index.php?c=showcs&id=99&model=Crawling%20Quadruped%20Robotamazon's link:http://www.amazon.com/gp/product/B0136AS1ZGso far, I have not done much with sunfounder's software other than download it from their site and write it to the 2 included nano arduino modules. I'm playing with some other arduino boards and want to check their compatibility, so that was the reason for the board extension hack.eventually I want to get into the software and customize it, but have not gotton to that point yet. if the robot can handle more weight, I'd like to connect some sensors (prox, ping) and maybe a streaming camera.
Seeking "Unit Test" circuit board for testing Pick and Place robot. - Page 1
Forum section: electronics / general

author: billthebuilder
author_rank: Contributor
timestamp: October 12, 2015, 08:53:10 pm
content: I am looking to put our Pick and Place robot through an abilities trial and want to have it tackle the gambit of a RLC circuit of components of various sizes and orientations. I figure someone has done this before, instead of reinventing the wheel I was hoping to find something. If there's a standard board for quality control or benchmarking, that'd be even better to know about.Thanks,Bill

author: unitedatoms
author_rank: Frequent Contributor
timestamp: October 14, 2015, 11:45:54 pm
content: This company has it for pick and place tests.http://www.practicalcomponents.com/Evaluation-PCB-Boards/product.cfm?SMTA-Saber-Evaluation-Board-and-Kit-CFF5664CDDB199EAI used one of their board model (stack of identical boards) for testing solder paste printer robot, when designing HMI/Motion Control/Inspection software.
Open Source SIGROK, decoder for instrumentation?!! Anyone know how to contact? - Page 1
Forum section: electronics / general

author: rwgast_lowlevellogicdesin
author_rank: Frequent Contributor
timestamp: September 07, 2015, 04:24:29 pm
content: I know SIGROK is not necessarily open source hardware but it is OS Software meant to be used with hardware! I have scowered there pages for contact Info and cant find anything but an empty IRC channel.....I would like to speak to someone in the community about reverse engineering I have done of a PC Scope written with NI tools I belive. Problem is the micro's eeprom is loaded by the PC software and its windows only. I want to donate a loaner to then and dis assembly from IDA Pro but IDK how to talk to anyonem they say hardware donation loans are much welcome....

author: denial
author_rank: Newbie
timestamp: September 08, 2015, 03:11:08 pm
content: Quote from: rwgast_lowlevellogicdesin on September 07, 2015, 04:24:29 pmThat's strange.. We're currently 92 people in the channel (#sigrok) and most people stay connected all day long.

author: timofonic
author_rank: Frequent Contributor
timestamp: November 06, 2015, 05:35:08 pm
content: Quote from: denial on September 08, 2015, 03:11:08 pmWere you able to contact them? I posted this forum topic on their IRC channel.Are you new to IRC?It's better if you use an IRC client, there are tons of them for each platform. You can even use multi-procol ones if used to IM, like Miranda and Pidgin.Please connect to irc.freenode.net and not other network.Anyway, you could just put #sigrok on the channel text box on the following URL and start chattinghttps://webchat.freenode.net
can digital filter coefficients be copyright - Page 1
Forum section: electronics / general

author: f5r5e5d
author_rank: Frequent Contributor
timestamp: October 07, 2015, 11:20:10 pm
content: I see a audio DAC with the claim "The filter is absolutely proprietary"which seems to be a bit unclear - are digital filter coefficients themselves considered computer programs - or are they Mathematical results - the former is copyrightable - Math absolutely not

author: rfeecs
author_rank: Frequent Contributor
timestamp: October 07, 2015, 11:29:25 pm
content: Maybe their filter is like the recipe for Coca-Cola. It's absolutely proprietary. But not copyrighted.

author: helius
author_rank: Super Contributor
timestamp: October 07, 2015, 11:40:20 pm
content: "Proprietary" could mean they are considered a valuable trade secret. This doesn't provide any of the protections of copyright, but could be a liability for anyone who discloses them without permission.Fonts are the same way: the shape of a letter is a mathematical curve, and is furthermore a utilitarian invention since it is a tool used to convey information. But by presenting them as "font programs" that have "creative components" (like text comments), the vendors attach an aura of copyright to them.

author: f5r5e5d
author_rank: Frequent Contributor
timestamp: October 08, 2015, 12:00:38 am
content: in principle the coefficients are discoverable without popping the lid - structured digital test signal input cross correlated with measured signal output - some information loss from the DAC/ADC step with noise and nonlinearities but you could average lots of trials...bus sniffing would be more reliable - could be at the DAC input if there was a practical inability or legal need to avoid disassembly of the programafaik trade secrets discoverable this way simply aren't secret, legally protectable if you have no contractual obligation to the trade secret holder

author: marshallh
author_rank: Unknown
timestamp: October 08, 2015, 09:51:38 pm
content: Put step impulse in, log output, poof there's your coefficients.

author: photon
author_rank: Frequent Contributor
timestamp: October 08, 2015, 10:23:39 pm
content: Quote from: marshallh on October 08, 2015, 09:51:38 pmYes, assuming filter is finite impulse response. No if not.

author: Marco
author_rank: Super Contributor
timestamp: October 08, 2015, 10:41:28 pm
content: Copyright would be useless, patents maybe. Ask people in eastern Texas who don't try to get out of jury duty, they are the experts.
Autodesk open sources its 3D printer - Page 1
Forum section: electronics / general

author: daqq
author_rank: Super Contributor
timestamp: September 29, 2015, 08:46:13 pm
content: To anyone who wishes to take a peek at how Autodesk does hardware:http://hackaday.com/2015/09/29/autodesk-open-sources-ember-3d-printer/Schematics, PCBs, all in Altium and PDF.
SMA connectors - Page 1
Forum section: electronics / general

author: vlc.eece.2016
author_rank: Newbie
timestamp: March 06, 2016, 08:43:17 pm
content: Hello,to make it simple i have data output from FPGA kit through SMA connectors that i will need to connect them in some way either on an external driver or on a bread board to connect then to a LED array. I tried to search online for a module that takes input from SMA ports and op to leds or even op then to regular wires to be connected on the board but didn't find any. has anyone here worked with them before?

author: Fulcrum
author_rank: Regular Contributor
timestamp: April 18, 2016, 05:31:30 pm
content: Sorry, what do you mean with "op"?

author: uncle_bob
author_rank: Unknown
timestamp: April 19, 2016, 12:12:31 am
content: HiSMA's are a very common RF connector. They are designed to work with coax cabe. The target market is high speed and RF signals into the microwave range. The only way to connect directly to them is with coax.The closest you are likely to get to a direct attach would be an SMA to BNC adapter followed by a BNC to banana adapter. If you have a number of outputs, it's cheaper to get a new FPGA board for $10 than to buy $30 worth of adapters ....Bob

author: Cloud
author_rank: Regular Contributor
timestamp: April 22, 2016, 08:30:23 pm
content: Buy yourself a proper SMA connector and proper cable than crimp the SMA on the one end and solder a pin header on the other end.

author: langwadt
author_rank: Super Contributor
timestamp: April 22, 2016, 09:12:44 pm
content: Quote from: Cloud on April 22, 2016, 08:30:23 pmeasier to get some ready made cables and cutting them up than buying crimp tools and figuring out how to use them
Open Source Camera - The Focal Camera - Page 1
Forum section: electronics / general

author: made2hack
author_rank: Frequent Contributor
timestamp: August 18, 2015, 09:13:57 am
content: Saw this on reddit, re-posted here if anyone is interested.QuoteOriginalimgur postReddit linkFocal Camera Website

author: Mechatrommer
author_rank: Super Contributor
timestamp: August 20, 2015, 02:13:48 am
content: why people keep got sucked up by "lego like" zigzagged wood connection design? why use drill and nail or glue is not neat?anyway good OSHW objective though. one thing they need to learn, to get world class optic and image edge to edge quality, it needs to be polished, laminated and cleaned in vaccum space, just to let people know of the reality...
[OSHW]Can I use a self designed ASIC in my OSHW design? - Page 1
Forum section: electronics / general

author: blueskull
author_rank: Unknown
timestamp: October 03, 2015, 01:20:21 pm
content: If I document all schematics and HDL in an ASIC, and use it in a design, can I still call that design OSHW? Of course, all other parts of the design are available in source form.Seems OSHW definition doesn't like to be mentioned together with "proprietary" parts. What if the ASIC's functionality can be implemented by discrete parts but there won't be a drop in replacement?

author: NiHaoMike
author_rank: Super Contributor
timestamp: October 04, 2015, 06:39:42 pm
content: It would be more open than the "black boxes" that most chips are.
Electrical Consumer Products and UK regulations - Page 1
Forum section: electronics / general

author: PICmonster
author_rank: Regular Contributor
timestamp: August 11, 2015, 03:31:29 pm
content: Hi EveryoneCan someone with more experience in business than me help guide me about what is the best route to place a consumer product on the market without getting wrapped up in lots of red-tape and legalities to do with product liability insurance etc.I am told by our compliance guy that I can design and manufacture this electrical product and sell it to the consumer, I am required to self certify the CE Mark and to keep a comprehensive technical file that may be inspected by the authorities that shows that due diligence has been carried out through the product full design cycle and complies with The Electrical Equipment (Safety) Regulations 1994.http://www.legislation.gov.uk/uksi/1994/3260/contents/made

author: AndyC_772
author_rank: Super Contributor
timestamp: August 11, 2015, 04:01:01 pm
content: We've had this discussion already.https://www.eevblog.com/forum/projects/uk-consumer-products-and-safety-regulations/msg700551/#msg700551Also potentially relevant / useful:https://www.eevblog.com/forum/projects/selling-your-product-in-the-eu-what-kind-of-regulatory-requirements-am-i-lookin/msg706423/#msg706423

author: KJDS
author_rank: Super Contributor
timestamp: August 11, 2015, 04:03:03 pm
content: EMC, electrical safety and hazardous materials.You'll need to EMC test it at an approved test house and you'll also need product liability insurance.Have a read through the recent threads that Andy has linked to and then ask any more specific questions you have.
Single Multilayer PCB productions at PCB House.... Can I? - Page 1
Forum section: electronics / general

author: dave_robinson_022
author_rank: Contributor
timestamp: April 29, 2015, 06:05:58 am
content: I live in New Zealand and I have found a PCB Board that I want but it is difficult and expensive to get from a company that produces it in the UK.They have put the KiCad files on github. It is a 4 layer PCB so I can't make it at home. Can I legally have a single copy made at a professional PCB house?

author: m98
author_rank: Frequent Contributor
timestamp: April 29, 2015, 03:04:58 pm
content: Why shouldn't you? I don't know British or New Zealand law, but as long as they published the CAD-Files and you won't sell the PCB to someone else, there shouldn't be a problem. Maybe you could ask the designer, if you want to be sure.

author: PeterFW
author_rank: Frequent Contributor
timestamp: April 29, 2015, 03:08:55 pm
content: Quote from: dave_robinson_022 on April 29, 2015, 06:05:58 amIf you make it for yourself, you can do whatever the hell your want.

author: Wilksey
author_rank: Super Contributor
timestamp: April 29, 2015, 05:16:29 pm
content: If it is open source, and license dependant blah blah blah, as long as you retain all author credit (which you should do anyway), then I can't see why you wouldn't be able to get one made.And yeah, even if you decide to take their name off and put your's on (not the done thing btw) then just don't tell anyone!

author: zapta
author_rank: Super Contributor
timestamp: April 29, 2015, 05:24:16 pm
content: Quote from: dave_robinson_022 on April 29, 2015, 06:05:58 amI wouldn't worry about a single board for self use.Large quantities or selling them is a different story.

author: tggzzz
author_rank: Super Contributor
timestamp: April 29, 2015, 05:55:34 pm
content: Quote from: dave_robinson_022 on April 29, 2015, 06:05:58 amRead the licence that goes with it. All else is speculation.

author: marshallh
author_rank: Unknown
timestamp: April 29, 2015, 09:05:52 pm
content: Send the design to oshpark, nobody ever looks at the pcbs they ship anyway

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: May 06, 2015, 08:22:51 am
content: Quote from: dave_robinson_022 on April 29, 2015, 06:05:58 amWhy would they have published the files if they cared abouthad a problem with people making their own?
Looking for help with testing Arduino based board - Page 1
Forum section: electronics / general

author: robertferanec
author_rank: Regular Contributor
timestamp: April 30, 2015, 09:46:22 am
content: Hello,please, I am looking for an Arduino enthusiastic, who would be interested to do heavy testing of a board similar to Arduino Uno, but with 3.3V IO support. The board is OSHW. It would not be a paid job, but you could keep the board. I have done the basic 5V Variant testing, but the 3.3 Variant will need some coding and re-compilation.The board is called28Pinsand the project can be foundhere >>>Thank you.- Robert
Open source Telephony Cards - Page 1
Forum section: electronics / general

author: ali_asadzadeh
author_rank: Super Contributor
timestamp: April 12, 2015, 02:07:28 pm
content: Hi,I want to know is there any open source hardware for Telephony Cards being used with asterisk,I mean something like thishttp://www.digium.com/en/products/telephony-cardsor if not,is there a path for showing what's required?

author: coppice
author_rank: Super Contributor
timestamp: April 12, 2015, 03:16:31 pm
content: You can find the Tormenta 2 card (4 x E1 or 4xT1) design as as open source package on the web. Atwww.rowetel.comyou will find blackfin based open source hardware to run asterisk with analogue ports. The early Digium 4 port analogue cards are little more than an implementation of the reference designs of the main chip from TigerJet, and the SLICs from Silicon Labs, so most of that can be copied without any IP issues.

author: PeterFW
author_rank: Frequent Contributor
timestamp: April 12, 2015, 03:16:58 pm
content: Quote from: ali_asadzadeh on April 12, 2015, 02:07:28 pmWhat do you want to to?Connect a bunch of ISDN phones allready installed to a PC.Connect a bunch of analog phones allready installed to a PC.Connect a bunch of ISDN and analog phones allready installed to a PC.Install a bunch of phones and wires and connect them to a PC.

author: NiHaoMike
author_rank: Super Contributor
timestamp: April 12, 2015, 07:31:25 pm
content: Probably of most interest is reusing analog phones since they are very common and cheap.Apart from DACs and ADCs, you'll need some voltage step up for the line and ringing voltages, and an impedance matched coupler circuit. The last part is very important as poorly matched impedance will cause an annoying echo on VoIP calls. (And if you plan to use a speakerphone, you'll need some DSP as well.) Not exactly trivial but still well within in the reach of hobbyists.

author: ali_asadzadeh
author_rank: Super Contributor
timestamp: April 13, 2015, 11:27:27 am
content: Thanks coppice , I couldn't find the (4 x E1 or 4xT1) on rowetel, would you place a direct link in here.Also I want a complete open source VOIP system, we can run the asterisk on the beagle bone black, so now what will remain is the open source VOIP phones and Telephony Cards for connecting analog and VOIP phones to the system,Is there an open source VOIP phone too?