ESP32 low power can bus - General Electronics - Arduino Forum
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Hi all, In Short: can GPIO13 on as esp32 Devkit 1 be connected to the RX pin (GPIO2) to wake from sleep on receipt of a Can Bus message? Detail: I am just about to order a PCB that I have been designing with much help from this forum for a NMEA 2000 can bus for a boat. I have one pin on the ESP32 Devkit1 still unused and it happens to be a 'touch' pin GPIO13. I was wondering if I could use this to wake from sleep so that I would be able to put the nodes into a low power mode when they are not
![](https://circuitstate.com/wp-content/uploads/2023/01/What-is-CAN-Bus-and-How-to-Interface-with-ESP32-and-Arduino-TJA1051-CAN-Transceiver-Block-Diagram-CIRCUITSTATE-Electronics-01.png)
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ESP32-C3 RISC V Developer Board - 4 MB SPI Flash [DevKitC-02 ESP32-C3-WROOM-02] : ID 5337 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits