Is Banggood trolling? - Page 1
Forum section: electronics / general

author: chartle
author_rank: Contributor
timestamp: November 06, 2015, 12:34:16 am
content: Under new arrivalshttp://www.banggood.com/DIY-Prototype-PCB-Board-Simple-Electronic-Mini-Clock-Kit-p-1010866.htmlMaybe if it had more wires.

author: EEVblog
author_rank: Unknown
timestamp: November 06, 2015, 12:48:51 am
content: As an aside, I've had countless people from Banggood want to send me stuff for review. A new name every week it seems...

author: Macbeth
author_rank: Super Contributor
timestamp: November 06, 2015, 01:04:10 am
content: Quote from: chartle on November 06, 2015, 12:34:16 amPlenty of wires - all the bridges under the proto board.I can't see the problem - it costs pocket money and is considerably more than the tat we used to get pasted to the cover of Everyday Electronics with a tiny piece of veroboard in the '80s. (This is in the old dart - 'strayans apparently got proper PCBs with their mags)Why this one even looks like it could have a "towers of hanoi" minigame with the LED display it comes with!Having said that, I would be surprised if it even comes with some assembly instructions, even in chinese!ETA: I just looked and it has plenty of documentation including source code.

author: Radio Tech
author_rank: Frequent Contributor
timestamp: November 06, 2015, 01:25:39 am
content: Interesting. I just ordered a kit from them this week.http://www.banggood.com/DIY-M12864-Graphics-Version-Transistor-Tester-Kit-LCR-ESR-PWM-p-986954.html

author: Dongulus
author_rank: Regular Contributor
timestamp: November 06, 2015, 01:33:57 am
content: Avoid bringing this to school if you live in Texas.

author: crispy_tofu
author_rank: Super Contributor
timestamp: November 06, 2015, 01:41:41 am
content: According to the list, it has 'several wire', which should be enough...I wonder why they're using a 4-pin header when only 2 of them are being used for power, is it cheaper?

author: chartle
author_rank: Contributor
timestamp: November 06, 2015, 04:12:50 am
content: Quote from: Dongulus on November 06, 2015, 01:33:57 amGlad someone else got the joke.Just seems too coincidental.

author: chartle
author_rank: Contributor
timestamp: November 06, 2015, 04:29:40 am
content: Quote from: EEVblog on November 06, 2015, 12:48:51 amI was thinking of sending one to you but without being able to add a note to the package not sure you would get the connection and wasn't going order one, have it sent to the US of A and then send it back over the Pacific.

author: Stonent
author_rank: Super Contributor
timestamp: November 06, 2015, 05:41:22 am
content: Quote from: Dongulus on November 06, 2015, 01:33:57 amWell his parents refused to let the police release the information to the public and then they moved to Qatar so I guess we'll never know what happened.

author: Ian.M
author_rank: Super Contributor
timestamp: November 06, 2015, 05:57:44 am
content: Hmmm . . . . .A 24x10 matrix board, a 8051 based MCU that supports serial programming with a simple TTL level cable, a 4 digit LED with a few extra indicators, three switches, a beeper and a 4 way header, all for about $5 Mount the display off the board edge to free up some space and you've got the basic student hardware for an introduction to microcontrollers course.

author: FrankBuss
author_rank: Unknown
timestamp: November 06, 2015, 06:31:51 am
content: Quote from: Macbeth on November 06, 2015, 01:04:10 amRight, and the source code has even comments. Ok, is is in Chinese, but should be no problem, it is an interesting language that everyone should learnQuote from: Ian.M on November 06, 2015, 05:57:44 amThe MCU might be interesting for other projects. But I can only find it on discontinued parts seller websites and on Aliexpress, for $1 for one piece. A similar PIC can do the same and is cheaper, but then you need a programmer.

author: coppice
author_rank: Super Contributor
timestamp: November 06, 2015, 06:55:36 am
content: Quote from: FrankBuss on November 06, 2015, 06:31:51 amChinese comments are no problem, but using GB2312 encoding for them? In 2015? This really isn't acceptable.

author: chickenHeadKnob
author_rank: Super Contributor
timestamp: November 06, 2015, 06:57:19 am
content: Quote from: crispy_tofu on November 06, 2015, 01:41:41 amIf you route power/ground to pin 1 and 3 then you apply a reversed cable dave jones style all you get is a no-connect, for safety no bombe smoke surprise!

author: Ian.M
author_rank: Super Contributor
timestamp: November 06, 2015, 07:01:52 am
content: There are many better MCUs , but academia still seems to be very fond of the 8051. Add a budget USB <=> TTL serial board, a few extra components and a small box (maybe a modded VHS tape case), and you've got a very portable $10 per head student kit.

author: Simon
author_rank: Unknown
timestamp: November 06, 2015, 07:07:14 am
content: Interesting name.

author: FrankBuss
author_rank: Unknown
timestamp: November 06, 2015, 07:22:55 am
content: Quote from: Ian.M on November 06, 2015, 07:01:52 amFor students a more modern system would be better, with an ARM CPU. There are many dev kits for less than $10, like the STM32F0308DISCOVERY, that are much more powerful than a 8051. But a single MCU which can be programmed with TTL serial might be still useful. I like PICs, because I can program it and use it in a breadboard, without the need for an additional external dev kit.

author: Stonent
author_rank: Super Contributor
timestamp: November 06, 2015, 06:18:26 pm
content: Quote from: Simon on November 06, 2015, 07:07:14 amSounds like a place in Thailand to pick up a companion for the evening.