MicroPython Forum (Archive)

The @pythoncoder micropython-async v3 encoder code is working perfectly in my project.

The Mike Teachman code (https://github.com/miketeachman/micropython-rotary) also works but had to modify for my specific encoder design (inverting schmidt triggers on output).

I have no idea what CAN does. CANbus is a physical layer protocol for communications between microcontrollers / devices. It's widely used in automotive applications / industrial applications to allow devices to talk in 'noisy' environments over just two wires. I am building a project to allow micro...

ahh ok, got it. I was looking at it all from the wrong side!

Not sure if I have worded this correctly but I am not sure how to look up constant's values. ie. >>> >>> can1.state() 2 >>> >>> >>> can1. any send BUS_OFF ERROR_ACTIVE ERROR_PASSIVE ERROR_WARNING LIST16 LIST32 LOOPBACK MASK16 MASK32 NORMAL SILENT SILENT_LOOPBACK STOPPED clearfilter deinit info init ...

I noticed that the SN65HVD230 3.3 V CAN Transceiver breakout board that I'm prototyping with did not have bypass capacitors on the 3.3v pin. I placed a 100 nF cap on this pin and it seems to be working.

The project has been sitting on my desk running for the past 7 hours and I just pressed the button 5 times and it registered an additional 11 CANbus messages on the second microcontroller.

I am trying to get my CANbus project going and look at the Peter Hinch pushbutton asyncio class. I have two Adafruit STMF405's with CANbus transceivers connected and communicating. UC1 is running the pushbutton class with a button and sending the CANbus msg: from machine import Pin import uasyncio a...

Looking for options for a MicroPython IDE that will allow me to connect to a REPL interface on two boards concurrently. I have tried PyMakr plugins for both Visual Code and Atom and both refuse to install on OSX 12.1. I am currently running two OSX iTerm windows each connected to the boards' REPL in...

Just realised there have been breaking changes in the github code for can.c relating to extended id's and I was looking at the 'latest' doco (even though it says v1.18 at top of doco page). The version https://docs.micropython.org/en/v1.18/library/pyb.CAN.html#pyb-can has the 1.18 release doco that ...

Getting the same error when trying to set the filter with extframe=True. It fails and I can't receive a CAN frame that was sent with extframe=True.