CAN BUS with ESP32-S3
Posted: Mon Mar 04, 2024 7:55 pm
by Lluis_
Hello,
Which are the correct or best oins in an ESP32-S3 Devkit C1 to conect Can H and Can L ?
As you can see, I'm a complete beginer. Pls, excuse my poor english.
Regards.
Re: CAN BUS with ESP32-S3
Posted: Tue Mar 05, 2024 11:28 am
by liaifat85
Re: CAN BUS with ESP32-S3
Posted: Tue Mar 05, 2024 12:29 pm
by MicroController
You don't connect CAN-H or CAN-L to the ESP; an external transceiver chip (e.g. a TJA1051) is needed to translate between RX/TX on the ESP and the CAN bus, see e.g.
https://docs.espressif.com/projects/esp ... ransceiver or
https://www.circuitstate.com/tutorials/ ... d-arduino/
Re: CAN BUS with ESP32-S3
Posted: Tue Mar 05, 2024 10:00 pm
by Lluis_
Thanks to both.
I have several Tja1051 because I want to connect 6 Esp32 ( 1 S3 and 5 S) . I'm programing with Arduino IDE + CAN library . Is there adequate GPIO for TX and RX coming from the module Tja1051 ?.
UART1_TXD and UART1_RXD are godd for this function?
Regards