Search found 783 matches

by OutoftheBOTS_
Sun May 10, 2020 10:30 pm
Forum: Programs, Libraries and Tools
Topic: External binary/lib C++
Replies: 6
Views: 537

Re: External binary/lib C++

Have you read this http://docs.micropython.org/en/latest/d ... dules.html

I am also trying to find Mike's github where he had written a heap of examples for all sorts of data types.

There is also this viewtopic.php?t=6786
by OutoftheBOTS_
Tue May 05, 2020 11:03 pm
Forum: Programs, Libraries and Tools
Topic: Can't get my NeoPixels to turn on
Replies: 26
Views: 2276

Re: Can't get my NeoPixels to turn on

Ha Ha I am a little scared to go commenting on github. This forum is where the learner programmers hang out and github is for the real programmers. I've seen your code and your video, you've spent a lot of time thinking about this and your comments are valuable. Just do it! :) I have updated my dri...
by OutoftheBOTS_
Fri May 01, 2020 9:49 pm
Forum: Pyboard D-series
Topic: Read a binary file with a clock
Replies: 7
Views: 923

Re: Read a bynary file with a clock

Why do you want to read a byte from a file during this timed loop??
by OutoftheBOTS_
Thu Apr 30, 2020 5:43 am
Forum: Other Boards
Topic: Lesson learned :(
Replies: 2
Views: 389

Lesson learned :(

It seems if you want to flash firmware to a STM32F4 via a DFU file using Dfuse no matter how many times you try to put the MCU in boot loader mode by connecting boot0 to GND and even if you open a brand new dev board it never works. only after several hours trying everything you can think of will yo...
by OutoftheBOTS_
Thu Apr 30, 2020 1:48 am
Forum: General Discussion and Questions
Topic: help with WS2812B LED
Replies: 21
Views: 1194

Re: help with WS2812B LED

Can you tryu these timing with the same Microbit and put it next to your hot fan and see if you have the same problem. I actually just received some Sk6812 LEDs a few weeks ago for an upcoming project. I'll try and take a look, but I think part of the problem was a mild timing error on the micro:bi...
by OutoftheBOTS_
Wed Apr 29, 2020 6:04 am
Forum: General Discussion and Questions
Topic: help with WS2812B LED
Replies: 21
Views: 1194

Re: help with WS2812B LED

Does micro bit have a crystal to create a consistent clocking signal?? A crystal oscillator will tend to keep a constant freq with change in temp (it is why they use them in watches for keeping time) but if the MCU is just using electrical circuits to create the timing freq then the freq will chang...
by OutoftheBOTS_
Wed Apr 29, 2020 12:25 am
Forum: Programs, Libraries and Tools
Topic: Can't get my NeoPixels to turn on
Replies: 26
Views: 2276

Re: Can't get my NeoPixels to turn on

Maybe the API for these addressable needs to be moved to the correct hardware class for the port becuase they are so hardware related e.g Good question... I can see good reasons for both approaches. Would you be interested in writing up your findings on that PR I linked to before (it's still not me...
by OutoftheBOTS_
Wed Apr 29, 2020 12:20 am
Forum: General Discussion and Questions
Topic: help with WS2812B LED
Replies: 21
Views: 1194

Re: help with WS2812B LED

This is what I found so far with these addressable LEDS. You have to supply the LEDs with 5v but once you get correct timing then they are happy with 3.3v signals on the data pin. Yup, this has been my finding too. This is also temperature dependent -- I noticed that a micro:bit neopixel board (htt...
by OutoftheBOTS_
Tue Apr 28, 2020 10:45 pm
Forum: Programs, Libraries and Tools
Topic: Can't get my NeoPixels to turn on
Replies: 26
Views: 2276

Re: Can't get my NeoPixels to turn on

One difficulty with timers though is that now the API becomes a bit more complicated because it doesn't just work on any pin. So coming up with a Python API might have some challenges, but definitely not impossible. This is the same reason why defining a machine.PWM API for stm32 is tricky. Maybe t...
by OutoftheBOTS_
Tue Apr 28, 2020 9:03 pm
Forum: General Discussion and Questions
Topic: help with WS2812B LED
Replies: 21
Views: 1194

Re: help with WS2812B LED

I would be interested to know if once you got the correct timings do you still need the voltage level shifter or will it work fine running the data pin at 3.3v No you will not need a voltage level shifter, but you have to connect you voltage supply to the VIN Pin which will supply 5V to your LED st...