Search found 190 matches

by rexnanet
Fri Jun 16, 2017 9:43 am
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 664
Views: 65492

Re: $10 O-Scope revisited

Hey... We are famous... again. :D http://hackaday.com/2017/06/15/hackaday-prize-entry-oscilloscope-for-the-masses/ https://hackaday.io/project/20821-multiscope https://hackadaycom.files.wordpress.com/2017/05/main.jpeg?w=1200 Congratulation! :D Edit: (if the credits are present on the hackaday post....
by rexnanet
Fri Apr 21, 2017 8:28 am
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 664
Views: 65492

Re: $10 O-Scope revisited

Hello again here. Today I did some fancy thing I was planning for some time. Replaced chip on one of my "BluePill" boards with STM32F303 microcontroller. Sure I am not the first one doing that, I know. Many have thoughts that would be nice if chinese manufacturers would make cheap "F303 Pills", but...
by rexnanet
Tue Apr 11, 2017 9:53 am
Forum: Libary request
Topic: IRlib on STM32?
Replies: 39
Views: 3737

Re: IRlib on STM32?

KaraWin wrote:Hi
I made an adaptation for irmp reception for stm32duino.

at https://github.com/karawin/irmp-master

Tested with the blue card.
Thanks! I was posting it on the forum and realized you already had done it :)
Have to test it ASAP! :)
by rexnanet
Tue Apr 11, 2017 9:49 am
Forum: STM32F103 Boards
Topic: Problem with IR Remote Control
Replies: 8
Views: 942

Re: Problem with IR Remote Control

I found one that seems to be working ok. https://github.com/karawin/irmp-master https://www.youtube.com/watch?v=R5umRl1Z8jc Haven't tested it but on the video it's working on the BluePill :) EDIT: The author already announced it here : http://www.stm32duino.com/viewtopic.php?f=15&t=1009&hilit=irremo...
by rexnanet
Thu Apr 06, 2017 1:21 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 664
Views: 65492

Re: $10 O-Scope revisited

Nice work :)

I haven't been able to work on this...
by rexnanet
Wed Mar 29, 2017 8:40 am
Forum: General discussion
Topic: Low power mode and wake from sleep.
Replies: 66
Views: 11954

Re: Low power mode and wake from sleep.

You can do that with a simple op-amp... for example : http://www.electronics-tutorials.ws/opa ... rator.html
But you can use the "hi-tech" approach and use the STM32 :)
readAnalog, digitalWrite and a mosfet or something depending on your aplication.
by rexnanet
Fri Mar 24, 2017 2:53 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 664
Views: 65492

Re: $10 O-Scope revisited

I made small breadboard for it ( knife cut ! :lol: ). DLO138-SPI_Display_Preamp.JPG I have made a new video (with better Sinus over divider (10k/3.3k) and changing gain of MCP6S91 between 1 ... 8). https://www.youtube.com/watch?v=GRtzcdL9PgA&feature=em-upload_owner It's the power supply on the righ...
by rexnanet
Fri Mar 24, 2017 2:45 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 664
Views: 65492

Re: $10 O-Scope revisited

HELP :!: :!: :!: :!: I try to realize this oscilloscope. I use the STM32-O-Scope-byRex code. Fails to load code into the STM32.. I get the following error message, which I can not solve. :?: Perhaps you can provide links to the correct libraries, or upload into a single archive. ;) Thanks https://d...
by rexnanet
Fri Mar 24, 2017 11:14 am
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 664
Views: 65492

Re: $10 O-Scope revisited

Looks very good! The noise levels seem ok. Are you using a breadboard or have you made a board for it? The need for shielding might indicate some ground problems or too much attenuation+gain... Now you could make some measures to see if the voltage levels match the real signal :) IMO you could also ...
by rexnanet
Thu Mar 23, 2017 5:18 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 664
Views: 65492

Re: $10 O-Scope revisited

Well done!

I've seen the video before the post :) It's running great. except near the end :) what happened?