RE: Trying to read CAN Bus with MCP2515 and coryjfowler MCP_CAN_lib Hi I try to get your example running on an ESP32 using an ESP32-Wroom-32D board. Using esphome with this exapmple its working fine: spi: id: McpSpi clk_pin: GPIO18 mosi_pin: GPIO23 miso_pin: GPIO19 canbus: - platform: …

There is still some traffic between the contoll unit and the display. I saw that in the logic analyser. But i found the reason for not working. I used this example for wiring what worked with esphome: [image] After I removed the 4k7 resistor it also start working with the example postet above. …

ESP32-Wroom-32D + MCP2515 and coryjfowler MCP_CAN_lib + CANBUS Trouble

Projects Networking, Protocols, and Devices

Coding_Badly March 15, 2023, 9:18pm 2

Do not hijack. Thread split.

Topic		Replies	Views
Receiving information with an ESP32 and an MCP2515 Networking, Protocols, and Devices	9	452	October 19, 2025
Esp32 Bus communication Networking, Protocols, and Devices	3	111	October 27, 2025
ESP32 with MCP2515 Not Receiving BMS CANBUS Data (ID 0x100) General Guidance	13	197	December 23, 2025
I want to do CAN bus communication between 2 ESP32 Programming	10	1093	June 15, 2025
Using two ESP32 boards and 2 MCP2515 boards to communicate over CAN, not receiving anything Networking, Protocols, and Devices	16	1788	December 6, 2025

ESP32-Wroom-32D + MCP2515 and coryjfowler MCP_CAN_lib + CANBUS Trouble

Related topics