hybridfree/eevblog-posts huggingface dataset:
Reinkstone R1: Brand new DES E-paper technology tablet - Page 1
Forum section: electronics / general

author: Bradlez
author_rank: Contributor
timestamp: July 23, 2021, 06:06:35 pm
content: The crowdfunding has already ended, but I think it's still worth a discussion due to the new DES e-paper display technology... not exactly in the best light however.https://www.kickstarter.com/projects/2026122594/reinkstone-r1-true-color-e-paper-tablet-powered-by-androidDES is a new e-paper display technology likely designed by Good Display and probably manufactured by another company. Instead of using capsules, it uses cofferdams which lets it display super sharp and crisp pixels instead of blurry pixels. Now this can be seen as an advantage and a disadvantage at the same time (your images will be really pixelated instead of having smoothed out corners). I personally love this technology as it also provides higher contrast.This display is also apparently way more UV resistant than existing e-paper displays which means it is ideal for outdoor use. Now I personally don't know how well normal capsule e-paper displays fare with sunlight but I'm going to take their word for it.So far this seems all good and fine right???Unfortunately I have huge concerns for this project, mainly regarding the display. Apart from one of the reviews showing damage () on the right side of the screen (no idea if that came out of the factory like that or was damaged during shipping), I've bought my own DES displays and they ALL HAVE FAULTY PIXELS with more appearing the more times I refresh the screen. Like the kickstarter's e-paper tablet, there's also horrible ghosting. Now this isn't permanent, but only if you can wait 24 hours haha.DES technology is currently at its infancy, and I wouldn't touch it for commercial use at all at this point. But if you want a cooler looking e-paper display to play around with using your Arduino or something, and don't really care about dead pixels, I'd say it's probably worth the shot perhaps, or perhaps not. You can buy them herehttps://www.good-display.com/product/68/.Though I'd probably buy their displays through Alibaba instead (in which I personally did).I'm curious what you guys think about the kickstarter aside from my comments on the display technology.

author: thm_w
author_rank: Super Contributor
timestamp: July 23, 2021, 07:52:58 pm
content: How does the display look amazing at 7:43 then after he refreshes it looks terrible? Is that just based on the content or is that the ghosting you are talking about?Weird that you could leave it for 24hrs but not manipulate the voltages in some way to achieve the same effect.Looks like epaper requires UV filter on the front, I've had no issues with old ebooks used outside so they probably had included it:QuoteTheir own demo makes it look a lot better:
Launch on Indiegogo: paperd.ink | A low power open source e-paper dev board - Page 1
Forum section: electronics / general

author: rgujju
author_rank: Newbie
timestamp: May 28, 2021, 05:48:45 pm
content: I feel SO excited to share this with you all. Have always been a lurker here but now I get to post!We have been working onpaperd.inksince last 1.5 years and it's been a wild journey. Covid-19, lockdowns, being bootstrapped and having a full time job. Add to that the inability to import components, shutting down of industries so we couldn't 3D print or fabricate PCBs. It's REALLY hard to make a hardware product without capital - financial or social but thanks to the internet and people like you we got the confidence to build and launch it!Do check it out!paperd.ink is a 4.2" e-paper display coupled with an ESP32. It's open-source, fully customizable and expandable. All the PCB and 3D printing files are available on our Github repo. It’s low power (<20uA deep sleep) so you can run it for months on a 2000mAH Lipo. Update wirelessly using WiFi or Bluetooth.Display your calendar, to-do list, weather, custom images, home IOT dashboard, and much more. You can code using micropython, Arduino, or ESP-IDF.Indiegogo:https://igg.me/at/paperddotinkLet me know if you have any questions!Cheers!

author: pallav.aggarwal@gmail.com
author_rank: Contributor
timestamp: July 03, 2021, 01:03:56 pm
content: This is great.Congratulations!
Kickstarter $9 = Embedded Learning Board for Raspberry Pi Zero + 1 Class - Page 1
Forum section: electronics / general

author: digger72
author_rank: Newbie
timestamp: June 30, 2021, 10:41:11 am
content: This is just $9 ( The board costs actually a little more than that)https://www.kickstarter.com/projects/moonshotjr/empizero-an-embedded-learning-board-for-raspberry-pi-zero/With EmpiZero, you get all the related related electronics in one single board - EmPi ZeroBonus : You get a free class with it to get started
On Kickstarter - Arduino Uno + One Getting started class for $6  - Page 1
Forum section: electronics / general

author: digger72
author_rank: Newbie
timestamp: May 28, 2021, 10:32:15 pm
content: Check this project on Kickstarter- For 10 to 17 Year old Kids- Arduino Uno 3 ( Worth $13) + One Getting started class for $6https://www.kickstarter.com/projects/embeddedlearner/learn-coding-for-smart-electronics-and-robotics?ref=8wibdnMore options also available - but this one looks most interesting
Feedback on LumiCube: An LED cube kit for the Raspberry Pi - Page 1
Forum section: electronics / general

author: matt-foundry
author_rank: Newbie
timestamp: April 27, 2021, 10:30:29 am
content: My friend and I launched a Kickstarter last month, it's an interactive LED cube kit for the Raspberry Pi. We're currently busy preparing everything for manufacturing, and we're anxious to make this the best product possible for our backers.I was wondering what everyone over here on the EEVBlog forum would make of our design. What do you suspect we have overlooked? What would you have done differently? Advice, criticism or thoughts of any kind much appreciated!You can see the campaign here:https://www.kickstarter.com/projects/1202256831/lumicube-an-led-cube-kit-for-the-raspberry-piI've also written a bit more about the electronics here:https://www.hackster.io/matt107/lumicube-an-led-cube-kit-for-the-raspberry-pi-c8036d

author: PlainName
author_rank: Super Contributor
timestamp: April 27, 2021, 03:13:37 pm
content: Nice job done well

author: matt-foundry
author_rank: Newbie
timestamp: April 28, 2021, 11:48:24 am
content: Thanks dunkemhigh!

author: ebastler
author_rank: Super Contributor
timestamp: May 01, 2021, 07:30:53 am
content: Very nicely done!(And I like your company name too.)This might be the first time I actually get on board with a Kickstarter project. But apparently I am to stupid to do so... Why does the "pre-order now" button on the Kickstarter page take me to an Indiegogo page with different packages? How do I actually register for the "Base Cube" on Kickstarter?
Magicbit-An easy IoT platform for everyone (Kickstarter) - Page 1
Forum section: electronics / general

author: Anuruddha
author_rank: Newbie
timestamp: April 25, 2021, 12:29:24 pm
content: Are you ready for what’s coming?Internet of Things or IoT is the Internet-connected smart devices. From home to industries, IoT is revolutionizing the entire world, connecting the unconnected.IoT and the technologies involved in it are indeed quite complex. Electronics, programming, web development, communication — there are lots of topics combined. With all these, creating a simple IoT application is not easy.But don’t give up just yet! Because we have the perfect solution.You might be a student, tech geek, professional, IoT developer, or learner. You might also like to learn IoT, but do not know where to start. Whoever you are, whatever level you are at, we’ll help you learn how to make your home devices “talk” to each other via an easy IoT platform.Introducing you — Magicbit; an all-in-one platform for coding, prototyping, electronics, robotics, IoT, and solution designing.Looking for your valuable ideas on this.Read morehttps://magicbit0.medium.com/magicbit-an-easy-iot-platform-for-everyone-46b17e049130https://magicbit.cc/

author: agehall
author_rank: Frequent Contributor
timestamp: April 25, 2021, 06:38:53 pm
content: Quote from: Anuruddha on April 25, 2021, 12:29:24 pmIt took you two years to get to the point where you make this a kickstarter? I think you are proposing a poor solution to a problem that didn’t need one.

author: PlainName
author_rank: Super Contributor
timestamp: April 26, 2021, 06:20:16 pm
content: It's a good concept for beginners and non-programmers, but hardly unique. A couple of quick things:1. My AV prevented access to magicblocks.io:Quote2. I wonder if the back of a oLED display is a good location for a WiFi antenna.
Multi Platform Oscilloscope and Signal Generator - Page 1
Forum section: electronics / general

author: digger72
author_rank: Newbie
timestamp: December 16, 2021, 04:20:11 pm
content: This Project is on Moonfunded ( Moonshot Jr's Crowdfunding Platform).The key idea is a script based Signal Generator and Oscilloscope so you can write code to generate a pattern or capture waveform using a script. The connection is using the USB Port. The Entry Price is $39 for early birds.https://moonshotjr.com/moonfunded/project/mutliplatform-multi-os-oscilloscope-signal-generator/
Small Power Grids in Sub-Saharan Africa - Page 1
Forum section: electronics / general

author: engi
author_rank: Newbie
timestamp: April 20, 2021, 06:39:36 am
content: I have a project to share which I just came across a few days agohttps://www.africagreentec.com/?lang=enIt is a german entrepeneur, who wants to sell containers which can work out of the box/(container)as a miniature solar power plant.At least it is a little bit more than just CGI,https://www.africagreentec.com/where-we-work/?lang=enI would be super curcious what you debunkers think of it!BR

author: Berni
author_rank: Super Contributor
timestamp: April 20, 2021, 11:41:08 am
content: Well it is heck of a better idea than solar roadways for sure.The container means it can be hauled by a truck to where it is needed. It is self contained, has a reasonably large solar panel area and uses some of the power to clean up a local water source into clean drinking water. The energy needs of these houses are also very low so the setup should be able to run a large area too. Hopefully they also pack in a few boxes of cable and electrical bits to be able to run the power lines into a few corners of the village.Id say as long as they find a way to fund construction of these things, it is a pretty good idea. Especially if some funding is also set aside to actually help them get some electrical appliances, especially old stuff that might be going into landfills but still work.

author: engi
author_rank: Newbie
timestamp: April 20, 2021, 08:05:00 pm
content: okay, so at least one additional voice that this could be a feasible conceptWhat I am worried the most ist durability of the solar cells in the climate. Sandstorms?But at least they do not need to expect hailThe other thing is aging of the batterie in the hot container? (Though aren't cold conditions worse ? So electric cars in norway technically even more of a challenge? )The other thing is maintainance ? How often does a solar cell need spare parts? I guess I need to watch david's videosYeah, I guess when you kind of have to make an installation in the middle of the desert you want to make sure that you have all necessities packed. Also one aspect that caught my interest. They build the whole thing in Europe, set it up, check if everthing is working and then "fold it together" in the container with basically everything included. This makes sure that under a difficult environment everything should go smoothly.
ATtiny Flasher (crowdsupply) - Page 1
Forum section: electronics / general

author: larsdenmark
author_rank: Regular Contributor
timestamp: March 11, 2021, 12:27:58 pm
content: I find this interesting:https://www.crowdsupply.com/sonocotta/attiny-flasher"ATtiny Flasher is a handy device that allows you to use your favorite IDEs and debugging tools when developing for the ATtiny microcontroller. Enjoy the classic Arduino development experience while working with bare metal. Whether you’re a design engineer, a hobbyist, or someone who’s just getting started programming MCUs, ATtiny Flasher can help you get from a great idea to a great implementation—without having to port your code to its intended platform when you’re done"Accoding to the description it will be able to programme these Attinys: Flash ATtiny85, ATtiny45, ATtiny25, and ATtiny13 via breadboard or onboard header.Can anyone tell if it'll work with any other atttinys?

author: tyguy2
author_rank: Unknown
timestamp: March 19, 2021, 07:19:06 pm
content: I'd assume as long as the pins line up, the Attiny in question uses the ICSP interface, and the firmware has been compiled for the correct chip, it should be able to flash the chip. Although this product could easily made with a Arduino Uno flashed with ArduinoISP and some wire, probably for cheaper too

author: syau
author_rank: Frequent Contributor
timestamp: March 20, 2021, 02:11:57 pm
content: Quote from: tyguy2 on March 19, 2021, 07:19:06 pmI just program a cheap chinese made Arduino Nano, programmed with ArduiniISP and get the job done with few dollars only.

author: brucehoult
author_rank: Super Contributor
timestamp: March 20, 2021, 07:32:42 pm
content: Doesn't give a price. Could be handy, but I always just plug the ATTiny into a breadboard or use a clip (if it's already on a board) and use the standard ArduinoISP sketch on some Uno or Mega that is lying around.There are Uno clones around for under $10 and they work just fine, so everyone should have one.

author: larsdenmark
author_rank: Regular Contributor
timestamp: March 23, 2021, 06:55:00 am
content: Thanks everyone.Does the ArduiniISP method also allow you to debug the MCU?

author: Ian.M
author_rank: Super Contributor
timestamp: March 23, 2021, 08:41:39 am
content: No. The ArduinoISP sketch emulates an AVRISP programmer which isn't debug capable. To debug on the cheap under Atmel Studio or MPLAB X without a massive software effort you need to emulate an Atmel debugger. e.g. the mEDBG debugger found on Atmel/Microchip's Xplained Mini and Nano boards. All that's needed is an ATmega32U4 based Arduino (a Leonardo or Micro), a few passives and if you need low voltage debug capability, 2x 4 channel BSS138 level shifter breakouts e.ghttps://www.adafruit.com/product/757Seehttps://hackaday.io/project/162372-xplained-yourself
Pi-Vault RPi DC UPS/PSU  - Page 1
Forum section: electronics / general

author: soubitos
author_rank: Frequent Contributor
timestamp: March 25, 2021, 06:37:55 pm
content: Introducing Pi-Vault a zero sized but fully capable DC UPS and PSU for RPi of any size!Pi-Vault is designed by myself and uses firmware developed by J.Baumann based on this Attiny-Daemonhttps://github.com/jbaumann/attiny_daemonand tailored to Pi-Vault.You can power Pi-Vault by USB-C (5V3A max) which is not recommended for Pi with more than 2A of current requirements (2A for Pi, 1A for battery charger), It is absolutely fine for Pi zero or zero W or less demanding applications. (limitation applies only while battery is charging)You can also power Pi-Vault from its DC input with ANYTHING that can supply DC Voltage between 8 and 28V. Power source must be able to supply at least 20W of power... There is input reverse polarity protection and disconnect switch. Can be used with 12V solar panels.Battery charger will work with 1S Li-Ion/LiPO battery charging at 1A max.Battery must be able to supply at least 8A (using 2-3 cells in parallel will help with weaker cells).Battery protection allows handling high currents up to 10A.Output is capable to deliver 5V3A recommended for RPi and can even reach 4A for short durations without problems but airflow/cooling is required to sustain power above 15W for prolonged periods of time.Pi-Vault uses an attiny1606 to handle communication with its host Pi over I2C.There is an addressable rgb led for status indications and a pushbutton to turn system on/off (can use external switch too).A DS1307 RTC with optional backup battery is also present.I will place order for pcb/components for an initial small batch which is available as early bird at a lower price.. in about 3 months from now Pi-Vault will be available on groupgets.com and later on on tindie.If interested on early bird, please send a private messageTo answer common questionsI use easyeda for my designsDesign will eventually be open sourced but please do not ask for schematics for few more months.

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: March 29, 2021, 03:29:55 am
content: Neato, reminds me of thishttps://lifepo4wered.com/lifepo4wered-pi+.html

author: soubitos
author_rank: Frequent Contributor
timestamp: March 29, 2021, 09:28:30 am
content: Quote from: ANTALIFE on March 29, 2021, 03:29:55 amTwo similar yet so different designs.I am confident Pi-Vault is better and cheaper overall.
Larson Scanner 2021 - Page 1
Forum section: electronics / general

author: soubitos
author_rank: Frequent Contributor
timestamp: March 15, 2021, 02:02:12 pm
content: Made simple larson scanners for a few years now, sold hundreds but always wanted to do more with them.Some customers used them as indicators in alarm systems, in kids toys, as early warning pedestrian protection device (yeah!) and countless other applications.But the very basic design, single color LED, no interaction capability etc was limiting creative ideas to the absolute minimum implementation possible,So, it was time to redesign LS and create LS2021!LS2021 has the same board dimensions and appearance but its a totally different beast.Instead of a smaller attiny like the 13/25/402 I used in the past, it now has an attiny3216.Instead of 20 single color LED, it now has 16 RGB Addressable LED (WS2812C for lower power).LS2021 also has a button, a microphone, I2C temp sensor (LM75B) & an ambient light sensor (OPT3001).There is also access to spare GPIO (including UART, I2C, DAC).It is very easy to program using its UPDI pin which is also going to the USB port's D+ pin and i have an optional programmer adapter using the same connection so its very easy to program even if the board is inside an enclosure.You can find Larson Scanner 2021 on groupgets.comhttps://groupgets.com/campaigns/884-larson-scanner-2021

author: soubitos
author_rank: Frequent Contributor
timestamp: March 19, 2021, 10:08:16 pm
content: My arduino-ish is terrible with mosfet accent.. i actually learned a lot working on LS2021.. Lots of fun...and still working on code for few applications i want to use LS2021 for, with the help of friends for sure..so, no matter how the campaign ends, the learning process is a price on its own...
tCam-Mini - An ESP32-based wireless thermal imaging camera - Page 1
Forum section: electronics / general

author: globoy
author_rank: Frequent Contributor
timestamp: February 24, 2021, 11:50:29 pm
content: Hey all,I designed a simple, Flir Lepton3.5 based, radiometric thermal imaging camera called tCam-Mini. It's designed to make it easy to get radiometric (absolute temperature) data from the sensor for use in all kinds of thermographic analysis. Communication with the camera occurs over a Wifi network socket interface and data is easy-to-parse json formatted packets. It can be powered by a USB charger or other 5V PSU.Group gets is running a campaign for the camera athttps://groupgets.com/campaigns/919-tcam-mini. They will build and ship boards if it succeeds.Although the goal of this camera is to make it easy to access the data from the Lepton sensor for your own application, I also wrote a desktop application that runs on Linux, OS X and Windows to control the camera, view images (static or streaming), save and read them from files and plot temperature data over time. Super useful if you want to do things like watch parts heat up on a circuit board.There will also be a python library wrapping the network connection to the camera and providing a simple API to control the camera and get images from it. For fun I'm also writing a web server for the Raspberry Pi that can connect with multiple cameras and provides some very simple detection logic to record images when a part of the image goes above or below a preset temperature (I want to use this for wildlife detection).The camera is open-source and you can also build one yourself out of commonly available development boards. Details for the camera can be found at my github repository:https://github.com/danjulio/lepton/tree/master/ESP32including the desktop application and some sample image and video files to play with.- Dan (aka globoy)

author: PlainName
author_rank: Super Contributor
timestamp: February 25, 2021, 08:25:08 pm
content: Nice job

author: globoy
author_rank: Frequent Contributor
timestamp: February 26, 2021, 03:16:15 am
content: Thank you.

author: globoy
author_rank: Frequent Contributor
timestamp: March 01, 2021, 05:28:49 pm
content: I wrote a simple web server application for tCam-Mini and posted that tohttps://github.com/danjulio/lepton/tree/master/ESP32/WebApp. It can connect to multiple cameras and provides a web interface. It can also do some simple event detection, recording images to files when a certain population of pixels in a scene fit in a temperature range.A python library for accessing the camera should also be complete in the next couple of weeks.
Dodgy: Graphene Infused Heated Jacket - Page 1
Forum section: electronics / general

author: FrankT
author_rank: Regular Contributor
timestamp: April 02, 2021, 06:04:06 am
content: https://www.kickstarter.com/projects/weargraphene/gamma-all-season-graphene-infused-heated-jacketI confess I am not a graphene fabric expert, but this smells a bit. Especially the built in heater via a power pack that has 3 temperature settings - 40C, 50C, 60C.It's not the only graphene miracle fabric bit of clothing on there.

author: thm_w
author_rank: Super Contributor
timestamp: April 08, 2021, 10:46:41 pm
content: Quote from: FrankT on April 02, 2021, 06:04:06 amThere is a lot of BS on that page, but the temperature thing is legit. They are simply using a battery pack to heat the jacket. You can find many electric heated jackets outthere."Gamma is equipped with 3 carbon fiber heating elements built directly into the jacket. When your body heat isn’t enough, you can supercharge Gamma’s graphene layer at the push of a button."

author: Daixiwen
author_rank: Frequent Contributor
timestamp: April 09, 2021, 07:20:14 am
content: I don't understand how their graphene layer can be "high performance insulating" and "highly conductive" at the same time?

author: PlainName
author_rank: Super Contributor
timestamp: April 09, 2021, 02:15:52 pm
content: 'Insulating' as in the way jackets retain warmth.'Conductive' as in the way electrickery runs up wires.
Pi Knox 6-24V RPi PSU & 2ch Power Distribution Switch - Page 1
Forum section: electronics / general

author: soubitos
author_rank: Frequent Contributor
timestamp: January 12, 2021, 07:04:11 am
content: Pi Knox is a low cost solution in RPi Zero shape and size which allows using a single 6-24V power source to power the host RPi & allow it to control two connected devices powered from the same power source.It is on GroupGetshttps://groupgets.com/campaigns/890-pi-knox& ends in 9 days!Currently 128% funded >> Original goal set to 100pcs but since i will be making a batch anyway i decided to reduce campaign goal and make sure all interested to Pi Knox get one (or more)....Pi Knox prototypes (blue board) work very well and the "production" version is improved adding input & output protection, increasing output power and functionality.
Crowd Supply: Precursor - Open Hardware, RISC-V, Mobile Dev Platform - Page 1
Forum section: electronics / general

author: sandalcandal
author_rank: Unknown
timestamp: November 03, 2020, 07:41:24 pm
content: https://www.crowdsupply.com/sutajio-kosagi/precursorSurprised no one has posted this yet. Blackberry like mobile platform meant to allow open source development of highly secure systems with the claim of "evidence-based trust" as the core development principle. Crucially, based on FPGAs which is meant to allow the deepest possible level of trust by allowing user accessibility down to the silicon-ish level. Only interfaces appear to be copper serial connections and Wifi so no GSM or LTE connectivity.Notably Bunnie is the one behind this project.$112k raised out of $220k as of posting this.

author: yagen
author_rank: Newbie
timestamp: January 11, 2021, 07:06:11 pm
content: Yes! Incredible stuff i think, 400k raised of 220k goal at the end,maybe i looked over it but, will this be one run and that's all?Like the Novena from bunnie, only the board is for sale now, not the whole laptop. (and that raised ~780k out of 250k)
Post crowdfunding : Electric vehicle charge cable hook - Page 1
Forum section: electronics / general

author: f4eru
author_rank: Super Contributor
timestamp: January 03, 2021, 04:39:35 pm
content: Hello,My project is already past the Kickstarter stage (seen in other parts of the forum) :https://www.chargehanger.com/it's a cable holder hook to avoid having the EV charge cable laying on the floor getting dirty, dangerous, and damagedHave a look if you have an EV !
Building a slow-motion camera - Page 1
Forum section: electronics / general

author: Hilmar
author_rank: Newbie
timestamp: November 18, 2020, 07:11:02 pm
content: Hey,we are working on our own slow-motion camera since a while and are currently trying to get crowd-funded on Kickstarter:https://www.kickstarter.com/projects/thdevices/thcam-3000-fps-slowmotion-cameraThis is our first attempt trying to make our hobby to a profession. Any comments or thoughts?EDIT: Maybe some additional informations are from interest as well: As image sensor we use the Python2000 / Python1300 (Bayer RGB) from OnSemi, as FPGA we use a Lattice MachXO3, the RAM are common available SODimm 204 DDR3 modules (8 GB). For the connection to the computer we use a FTDI FT601 (USB 3.0).Kind regards,Hilmar

author: thm_w
author_rank: Super Contributor
timestamp: November 19, 2020, 09:48:13 pm
content: QuoteCool.Any inspiration from chronos?

author: Hilmar
author_rank: Newbie
timestamp: November 20, 2020, 11:49:37 am
content: Hey,yes, the Chronos project was for sure a big inspiration for us. Our focus is more on advanced reliable real-time Highspeed Machine Vision applications (because this is the domain we comefrom ourselves).In comparison with Chronos 1.4 we have a reduced max framerate / resolution, but at the same time roughly 1/3 of the price.Kind regards,Hilmar
Raspberry Compute Module 4 Board with ISO Interfaces - Page 1
Forum section: electronics / general

author: sukhoi
author_rank: Newbie
timestamp: February 12, 2021, 08:41:27 am
content: Dear All,Our Team believe in Open Source Projects. We are happy to submit CM Hunter.It Will be totally Open Source after our Campaign.Raspberry Compute Module 4 Board with ISO InterfacesGalvanically-Isolated Modbus, 1-Wire, CAN | LAN | HDMI | LCD | USB | RTC | RELAY | QT Application for small Displays | Open SourceThis is not just another Raspberry PCB.Not just IO Board.Open Source - Hardware and Software.This Carrier board was created by engineers for engineers, creators, learners, hobbyist.CM Hunter Integrates the most common communication protocols:RS485/Modbus isolatedCAN 2.0B isolated1-Wire isolatedHDMI 2.0ETHERNET GigabitUSB 2.02.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac wireless /some CM4 versions/Bluetooth 5.0, BLE /some CM4 versions/+ Real Time Clock, Relay, LCD Display, SD/MMC card, Cooling FanYou could support us here:https://www.kickstarter.com/projects/andreasebrle/raspberry-compute-module-4-carrier-board-with-iso-interfaces?ref=1ljqu6&token=79d23762
Jeri Ellsworth: Tilt Five Holographic Tabletop Gaming - Page 1
Forum section: electronics / general

author: sleemanj
author_rank: Super Contributor
timestamp: September 23, 2019, 10:46:21 pm
content: Jeri having another go with tabletop gaming, better luck this time hopefully!https://www.kickstarter.com/projects/tiltfive/holographic-tabletop-gaming

author: bitwelder
author_rank: Super Contributor
timestamp: September 24, 2019, 07:13:52 am
content: Go, Jeri, go!

author: FrankBuss
author_rank: Unknown
timestamp: September 25, 2019, 03:07:52 am
content: In the comments they say unlike with castAR, this time Jeri will remain CEO, and looks like no investors who could interfere. I backed it.

author: SiliconWizard
author_rank: Super Contributor
timestamp: October 01, 2019, 08:21:27 pm
content: Damn, 900k+Not bad.I like the idea. It's more like "augmented reality" than VR per se. Well, a mix of both. Neat. Pure VR headsets are a zombified experience.

author: FrankBuss
author_rank: Unknown
timestamp: October 30, 2020, 11:03:35 am
content: Looks like they got venture capital again:https://venturebeat.com/2020/10/28/tilt-five-raises-7-5-million-for-ar-goggles-for-tabletop-board-games/I hope it doesn't end like castAR.

author: Bud
author_rank: Super Contributor
timestamp: October 30, 2020, 04:23:57 pm
content: Quote from: FrankBuss on September 25, 2019, 03:07:52 amYou need to know a thing or two about being a CEO in order to be a CEO. I gather from her last experience she was not a good one. What is the point to be a CEO then. Be a VIce president of Technology or something, do what you do well.
DODGY Kickstarter: Magnetic Energy Source - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: October 19, 2020, 03:46:08 am
content: Let's save the world!https://www.kickstarter.com/projects/1824660582/maureens-lets-save-the-world-togetherBut he's in talks with Ford, BMW, VOLVO, HONDA, Nissan, and Toyota!Quote

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: October 19, 2020, 03:54:15 am
content: Risks and challenges.
All-in-one USB to isolated-UARTx2/CAN/USB/RS485/RS232  - Page 1
Forum section: electronics / general

author: slim_
author_rank: Newbie
timestamp: October 09, 2020, 01:04:32 pm
content: Edit:Campaign is live!Campaign price is 56$.Documentation available on github:https://github.com/slimelec/ollie-hwI’m launching an open source project on Crowdsupply. It's a multifunction isolated interface module that combines our most commonly used interface modules into one compact device.https://www.crowdsupply.com/ali-slim/ollieSome cool features:Includes a multifunction DB9 adapter( CAN, RS232, RS485)https://www.crowdsupply.com/img/0e3d/ollie-db9-02_jpg_content-body-gallery.jpg2 UART ports 1.8V/3.3V/5VRunning dual CAN firmware, CANtact and CandleLight firmwareIsolated power supply 1.8V/3.3V/5VGiveaway has ended.Giveaway:I have 2 extra fully functional samples, if you’re interested in this project and you want to get an early sample you can sign up using the CrowdSupply link below.https://www.crowdsupply.com/ali-slim/ollie/updates/giveawayAny feedback is appreciated. Cheers!

author: coromonadalix
author_rank: Super Contributor
timestamp: October 12, 2020, 01:32:55 am
content: Nice project but for mechanical toughness i would have put an usb type b connector, the micro connectors are too easy to damagemy 2 cents

author: slim_
author_rank: Newbie
timestamp: October 12, 2020, 12:28:21 pm
content: Quote from: coromonadalix on October 12, 2020, 01:32:55 amI agree, but I had to make a compromise - This is a very compact gadget, the PCB is only 85x35mm.btw feel free to subscribe to the giveaway, you don't have to back this project later on and you might get a free unit + free shipping.

author: wraper
author_rank: Unknown
timestamp: October 12, 2020, 12:48:16 pm
content: Quote from: coromonadalix on October 12, 2020, 01:32:55 amType B is outdated and very big. Even printers get rid of it these days. As of mechanical advantage, if compared with good micro USB with TH mounting pins, there is none. Micro USB connector itself is almost indestructible, the only issue is how well it holds onto PCB. Also unless you use high quality type B, it's not reliable. Especially shield connection. While even 2 cent micro USB connector is completely fine. You may have a wrong impression about them because in most cases type B is plugged once and stay like this forever, while micro USB is often plugged daily, and then device drops with plug still attached. You will have a hard time ripping connector on the picture below of from PCB. Though this project seem to use connector with only 2 TH pins which is mech from mechanical standpoint since there is no good support from the back. Hopefully there is no thermal relief for SMT pads under it or standalone pads and it's soldered onto solid piece of copper.

author: slim_
author_rank: Newbie
timestamp: October 12, 2020, 02:42:21 pm
content: I'm using the 4 TH pin connector, I think its solid enough.
DODGY KickStarter: The Gravitational Power Generator - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: September 08, 2020, 10:56:52 am
content: I thought these things were banned on Kickstarter?At least they tell you it produces no energy because they don't have a generator connected yet!https://www.kickstarter.com/projects/sunteljp/the-gravitational-power-generator-eco-turbine?ref=discovery_category

author: pidcon
author_rank: Contributor
timestamp: September 09, 2020, 04:24:49 pm
content: For a simplified explanation from a similar tech, go to:

author: Jeroen3
author_rank: Super Contributor
timestamp: September 09, 2020, 08:05:54 pm
content: Somewhat, they pump water to the top tank, this creates a torque. And torque can be energy if given radial velocity.However, there is no such thing as free lunch, and pumping water to the top tank consumes energy of which half of that energy is lost immediately since that bit can't count as torque, right?I don't know if pumping water up scales linearly in energy. The efficiency probably doesn't.So a more correct description would be a gravity battery?

author: Haenk
author_rank: Super Contributor
timestamp: September 26, 2020, 09:07:59 am
content: Read the statement of the patent office at the end of the patent file:https://suntel.jp/doc/WO2020065902.pdfIt rejects basically all functional claims and calls this BS.

author: EEVblog
author_rank: Unknown
timestamp: September 27, 2020, 09:31:26 am
content: Quote from: Haenk on September 26, 2020, 09:07:59 amIt's one of the best self-owns I've seen!
Underground gravity energy storage - Page 1
Forum section: electronics / general

author: pidcon
author_rank: Contributor
timestamp: September 10, 2020, 01:06:14 pm
content: There seems to be an increase in startups working on underground gravity energy storage in 2020. All of them have different designs but similar goals: to save the world. Also, there's the mountain gravity energy storage. Anyone with experience in this area care to comment on their commercial viability?https://www.gravitricity.comhttps://www.terramenthq.comhttps://heindl-energy.comhttps://www.storage-lab.comhttps://energyvault.com

author: iMo
author_rank: Super Contributor
timestamp: September 10, 2020, 01:45:18 pm
content: The "gravity storage" is rather old invention, working all around world..https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricityThe implementation may vary, but still the same principle.

author: Marco
author_rank: Super Contributor
timestamp: September 10, 2020, 02:04:53 pm
content: Everything with winches and cables seems to me to have too much wear and tear. On top of that everything which requires massive amounts of excavation has a lot of up front expenditure, even more than pumped hydro.IMO pumped hydro, deep sea vacuum pumped hydro and hydrogen storage in gas fields are the only viable TWh scale storage technologies.I find the deep sea vacuum pumped hydro most exciting, you don't even have to pump sea water with all its corrosion problems. You can just fill the sphere with normal water and pump it into a temporary bladder.PS. I call it vacuum pumped hydro because it's easy to get the mistaken impression the water is displaced with high pressure air ... which would have awful efficiency.
Indiegogo - can some one explain this to me? - Page 1
Forum section: electronics / general

author: mairo
author_rank: Unknown
timestamp: August 19, 2020, 03:29:26 am
content: Hi all,I was looking at Indiegogo today and spotted this campaign:https://www.indiegogo.com/projects/bluetti-ac200-most-versatile-solar-power-station#/At the time of writing this post the main campaign money/bakers counter showed: ~ AUD$8million @5600backers , but when I went down through the perks the backers count did not match the 5600 shown at the main count so I went and count them one by one and it end up to a ~AUD$1.41million @1816 backers across all the perks.Maybe Indiegogo do not updates the individual perk counters as fast as the main total counter, or is there something fishy going on, or anything else?

author: Kean
author_rank: Unknown
timestamp: August 19, 2020, 03:57:13 am
content: On Indiegogo there can be hidden perks, either promoted to a select group, or just hidden once no longer offered.It makes life so much easier for scammers.

author: mairo
author_rank: Unknown
timestamp: August 19, 2020, 08:02:26 am
content: Thanks Kean! This probably 'explains' why. I did also looked into other Indiegogo campaigns and they all looked similar - this fishing rod for example has only 3 backers from the single perk offered, but is at nearly AUD$70k with 381 backers, not a single comment ....

author: No.15
author_rank: Contributor
timestamp: August 22, 2020, 03:37:58 pm
content: Quote from: Kean on August 19, 2020, 03:57:13 amI think this is true. I actually backed this campaign and the perks were different in the beginning and those perks are no longer available. You had to have a link that they sent out. It was targeted I think and I got it through my participation on diysolar.com, or I found out about it there.This is only the second campaign I have ever backed, I got burnt bad on another crowdfund a few years ago and have been hesitant ever since. Hopefully I don't get burned twice
Kickstarter : Arduino compatible ATSAMD21 M0+ with SPI 8MB Ram and 128MB Flash - Page 1
Forum section: electronics / general

author: AlexTan
author_rank: Newbie
timestamp: July 15, 2020, 06:08:38 pm
content: Good day everyone,I have started a Kickstarter project and wish to share it with all the esteem engineers and enthusiasts.The link to the kickstarter :https://www.kickstarter.com/projects/rectifyengineering/samd21-m0-arduino-compatible-board-just-got-strongerI am not so polished in presentation and details thus I hope to humbly seek your feedbacks and where I can do better.Thanks for taking your time to read and I hope you would visit the link for more details.

author: statorworks
author_rank: Newbie
timestamp: August 03, 2020, 11:45:23 pm
content: This is excellent. More RAM for embedded is badly needed.Is this a serial SRAM? is there a way to send data via DMA? For example camera frames?Good luck

author: AlexTan
author_rank: Newbie
timestamp: August 13, 2020, 02:14:35 pm
content: Thanks statorworks.You have very interesting ideas and this is also areas I wish to explore too.Some ideas I am considering as well, to implement micropython, some emulator, IOT peripherals, or basic disk operating system on it. So likely I would open source this to take in advice from all interested experts in these field to develop the potential of this board.The external memories are on SPI serial bus, the RAM is actually a pseudo SRAM.The interesting part about the board being able to use DMAs to transfer data around the SPI and other different peripherals.It is also possible to replace the Flash chip with RAM chip to bring total Ram size to 16M bytes.This board has pretty lot of applicationsCheers

author: free_electron
author_rank: Super Contributor
timestamp: August 13, 2020, 03:33:29 pm
content: schematic ? it looks like you have zero protection on the USB port ...

author: NivagSwerdna
author_rank: Super Contributor
timestamp: August 13, 2020, 03:54:30 pm
content: You are attempting to target a hard market! But at SGD35 price point seems about right... seems to be around GBP 19The most obvious alternative would be a Teensy 4.0 so I think you need to bring out the USP of your board more... seems to have better power options??Good Luck.PSI don't like the look of the connectors at all... looks amateur.... just use regular female headersPPSI have just created a very similar design for something else with a similar form factor using ATSAMC21G18A... I like the choice of uP

author: artag
author_rank: Super Contributor
timestamp: August 13, 2020, 06:06:22 pm
content: The connectors are turned-pin sockets. Much better quality than square headers, but possibly less useful as they need a narrow cylindrical pin to mate with (or a DIP IC lead).
RoEnDi [crowdsupply] - Page 1
Forum section: electronics / general

author: MitkoDyakov
author_rank: Contributor
timestamp: September 27, 2021, 10:26:47 am
content: Hey everyone!I want to introduce you my project. It is a rotary encoder with a round 1.28" display. The idea for this project is to be a module for a hobbyist to integrate in their project. Here are a few specs on about it.MCU: STM32L433 with USB and RTCDisplay: Round 1.28" TFT LCD DisplayRotary Encoder: 15 Pulses / 30 DetentNOR Flash: 128 MbitsLDO: 3 V 400 mAI am working on a few demos for the project. One is a USB Component device HID + CDC for volume control (done), MP3 player, thermostat / light interface for home automation and a safe dial.As it is using STM32 MCU so it utilizes STM32CubeIDE, STM32CubeMX and TouchGFXDesigner. I have also successfully run demos for the encoder, display, flash and RTC using STM32Duino + Arduino IDE. The device has e boot select button, that puts it in DFU mode and you can program it without a debugger. Of course there is no debug when using Arduino IDE.I have design everything using free software KiCad for the PCB, FreeCAD for the body of the Encoder. The STM suit and Arduino for the software part.The body of the encoder has two variants. One is CNC aluminum body matt or shiny finish and the other is resin 3D printed. The CAD files are available on the GIT hub repo.I would love to get you thoughts and feedback. Please ask questions, I would do my best to answer everyone.Please subscribe for updates on the project onCrowdsupply link hereThanks and see you soon

author: PlainName
author_rank: Super Contributor
timestamp: September 29, 2021, 12:10:54 pm
content: That's a great ideaHow it comes out well. The main sticking point could be cost, but in principle I think it's cool.

author: MitkoDyakov
author_rank: Contributor
timestamp: October 01, 2021, 05:22:43 pm
content: Heydunkemhigh, thanks! Yes, spot on on this observation. There are a lot of parts to get the encoder rolling. This inevitably drives the cost up, but hopefully if we get support from enough people we can offset this. Cheers!
MouldyRF protoboards group buy - Page 1
Forum section: electronics / general

author: retrev
author_rank: Contributor
timestamp: July 20, 2020, 09:54:33 pm
content: I recently did a group buy order for some MouldyRF prototyping boards (good to about 4.5GHz) and I've got some extras. If you wanna pick some up, go to my tindie store.https://www.tindie.com/products/notcows/mouldyrf-prototyping-boards/

author: Cyberdragon
author_rank: Super Contributor
timestamp: July 21, 2020, 05:46:21 am
content: https://www.eevblog.com/forum/buysellwanted/
ZS1100A Power Meter - Page 1
Forum section: electronics / general

author: LogicEthos
author_rank: Newbie
timestamp: June 12, 2020, 07:59:39 pm
content: https://www.crowdsupply.com/zscircuits/zs1100a-power-meterComments? Looks good. I know Dave said a while back he was working on a energy monitor. Maybe that's part of the uSupply?..IDK.

author: Kean
author_rank: Unknown
timestamp: June 12, 2020, 08:01:34 pm
content: Seems to be the one discussed in this threadhttps://www.eevblog.com/forum/testgear/iot-power-supply-design/

author: EEEnthusiast
author_rank: Frequent Contributor
timestamp: June 15, 2020, 01:59:28 am
content: Hi folks,I am the designer for the product. Any queries, criticism and feedback on the ZS1100A are most welcome.Currently we have a working prototype which meets most of the specs. Stress tests are on going on the product which includes high temp testing, low temp tests, frequent on-off, high load, overload tests etc.. Will go for pre-compliance EMI and ESD tests in coming month.
CDN-Zoo, on Indiegogo - Page 1
Forum section: electronics / general

author: LOL_Duck
author_rank: Newbie
timestamp: May 29, 2020, 05:32:20 pm
content: https://www.indiegogo.com/projects/cdn-zoo-rethink-content-delivery#/Howdy. I saw this mentioned somewhere and immediately thought of eevblog. Hopefully someone with a big brain can dissect this and work out if it's viable. The idea is, after you've purchased one of their USB sticks for $25, you connect it to your router and get paid for sharing your 'unused' internet bandwidth. Legit or BS?

author: ataradov
author_rank: Super Contributor
timestamp: May 29, 2020, 06:56:44 pm
content: The general broad idea is not that far out. The issue is that it relies on someone wanting to buy their service. And that's just not happening. So not a total scam, but they must understand that it is not going to work.And the amount of money you get will be minuscule, if any. Even their own fake graphic on the phone shows $18,59 for "2.97 Terrabytes sold".

author: frozenfrogz
author_rank: Frequent Contributor
timestamp: May 29, 2020, 07:27:58 pm
content: Quote from: ataradov on May 29, 2020, 06:56:44 pm...which is actually a surprisingly realistic number. Apart from the many "free" CDNs, you can expect to pay around 0.04 - 0.12ct per GB for most CDN services.But as mentioned, the CDN market is pretty saturated and there are not many reasons to use the proposed service instead.

author: LOL_Duck
author_rank: Newbie
timestamp: May 30, 2020, 01:27:14 pm
content: OK thanks for the replies. So maybe not a scam as such, but their expectations sounds very unrealistic is what I'm gathering.
Jammy EVO MIDI guitar- Kickstarter - Page 1
Forum section: electronics / general

author: Dave3
author_rank: Regular Contributor
timestamp: May 27, 2020, 07:36:27 pm
content: Jammy EVO MIDI guitar- Kickstarter. This follows up the Jammy guitar which was released in 2018.https://www.kickstarter.com/projects/1591722511/jammy-evo-play-any-instrument-using-your-guitar-skills/MIDI records data such as notes and timing. Here MIDI lets one use a guitar body to try other virtual instruments on a computer system, like synths, violins, horns, etc."Jammy EVO will have around 8-10ms of latency from the moment you pick a string to Jammy outputting the MIDI note. Of course, depending on the connection you’ll use (USB or Bluetooth), your computer specs, audio interface, and DAW, the overall latency may vary." Assuming the musician has an optimised music computer and audio interface, I would add at least 5ms to get the signal to computer, speakers and ears for roughly 15ms total IME.Kickstarter shows a lot of sensors on Jammy. And some proprietary strings.Entertaining review of the 2018 Jammy which cost $300 on sale:https://youtu.be/zR1nhH_CHNc

author: themadhippy
author_rank: Super Contributor
timestamp: May 27, 2020, 08:01:56 pm
content: Ah god no,here comes the 1980's music scene all over again.