MicroPython Forum (Archive)

PappaPeppar wrote:Here is a skin that I know Works.
https://github.com/HenrikSolver/pybcanskin

could you please provide the code which you test this skin with?

PappaPeppar wrote:How do you wire your P1 to the pyboard connectors. Have you measured whats on the pins of the transceivers?

I have updated scheme image, added PyBoard pins onto P1

no... even with transceivers it doesn't work and fails in the same way

I would find such a shield useful, but I'd prefer to see a separate output for each port, and perhaps have the option of connecting them together using jumpers. the only reason there would be separate outputs needed - if you want to join separate CAN buses... otherwise single output is the same as ...

what do you think about following scheme ? https://easyeda.com/normal/PyBoard_CAN_BUS_shield-2FztL3lDx.png I'm going to create a CAN bus shield PCB that will be able to join my car`s CAN bus. And to make both PyBoard CAN buses to interconnect even if nothing is connected to P2. Looks like it is no g...

sometimes I'm getting OSError 16 which is device or resource busy. But can1/can2.any(0) is always False. What is wrong? when playing with CAN.LOOPBACK - everything works. Why CAN1 <-> CAN2 doesn't?

I have connected CAN1 and CAN2 (Rx1->Tx2, Tx1->Rx2) with wires directly and trying to send/receive a message. With no luck. from pyb import CAN can1 = CAN(1, CAN.NORMAL) can2 = CAN(2, CAN.NORMAL) can1.setfilter(0, CAN.LIST16, 0, (123, 124, 125, 126)) can2.setfilter(0, CAN.LIST16, 0, (123, 124, 125, ...

What is maximum current allowed to power the pyBoard? I'm a bit scared to power it from my car usb charger which has 2A

is it a better idea to find a 3.3V CAN tranceiver like from TI? http://www.ti.com/lsds/ti/interface/can ... oducts-wwe# the only problem here is that it is SOIC, not DIP

why there is so many VIN and GND pins? and is there any benefit of connecting all of them to VIN and GND? is it for a stable cpu overclocking like with motherboards?