MicroPython Forum (Archive)

Thanks for your comments: Github - Peter has an excellent group of examples for uasyncio, perhaps this could be included there...with some tidy up first :-) New uasyncio - Yes, I should look at that when I get some time. Delimiter - COBS uses 0x00 as the frame delimiter and between blocks within the...

Apologies for the lack of explanation here, hopefully the Cheshire & Baker paper is enough.
This is just a bare-bones code dump for anyone who might be interested in a micropython version of COBS.

The following is a rudimentary COBS encoder/decoder for CPython. Setup the serial port appropriately to communicate with a pyboard, this code will send packets and look for an identical echo, as produced by the micropython code above. import serial,os from time import sleep from random import randin...

Sending binary data over a uart serial link can be a bit of a chore. One of the better ways is using COBS (Consistent Overhead Byte Stuffing) to packetise data. See the Cheshire & Baker paper linked at end of the wiki article: https://en.wikipedia.org/wiki/Consistent_Overhead_Byte_Stuffing Here is a...

Using low temp 60/40 solder might help.
I can supply you with a couple of S25FL128L in SOIC FOC if WSON doesn't work for you.

The Goertzel algorithm is quite efficient when searching for a single tone. It essentially calculates one FFT bin. def goertzel(target_freq, sampling_freq, data): ''' When searching for a specific signal tone the Goertzel algorithm can be more efficient than fft. This routine returns magnitude of a ...

Another option for testing is to eliminate the CANbus driver ICs and use Single Wire CAN. (1) Make the CAN TX lines open drain, as shown in this code (which is just a slight mod of previously posted code) (2) Join all the TX and RX lines from the STM32 MCU together (this is the Single Wire CANbus li...