07-14-2026, 10:25 PM
(This post was last modified: 07-16-2026, 01:35 AM by Doormouse.
Edit Reason: Resolved problem
)
Hi Everyone - Hopefully someone can help.
I have a CX90 seat and im using the instructions/code on the lilygo ESP32 485. Can anyone confirm there is not a major difference between the s90 seat and the CX90 seat I should be aware of?
Presumably the Power, Can High, Can Low, and Wakeup are all connected properly. The Code is running and trying to send the message to the seat module.
It is however replying with
Sending wakeup frame...
Send result: FAIL
I'll try disconnecting and reconnecting everything to verify the hardware.
UPDATE:
I sorted out the problem. when I checked the resistance across the CAN wires it was not 60 OHM (the 120 OHM resistor wasnt getting good contact). Once I fixed that the module woke up and worked just fine!
I have a CX90 seat and im using the instructions/code on the lilygo ESP32 485. Can anyone confirm there is not a major difference between the s90 seat and the CX90 seat I should be aware of?
Presumably the Power, Can High, Can Low, and Wakeup are all connected properly. The Code is running and trying to send the message to the seat module.
It is however replying with
Sending wakeup frame...
Send result: FAIL
I'll try disconnecting and reconnecting everything to verify the hardware.
UPDATE:
I sorted out the problem. when I checked the resistance across the CAN wires it was not 60 OHM (the 120 OHM resistor wasnt getting good contact). Once I fixed that the module woke up and worked just fine!