Topics created by didier9

Hello @didier9 for UART you should be able to use any available GPIO for RX and TX like this: Serial2.begin(115200, SERIAL_8N1, <RX>, <TX>); for I2C you should be able to use any available GPIO for SDA and SCL like this: Wire.begin(<SDA>, <SCL>); Thanks Felix

Hello @davidgs Hmm, I can scan the I2C bus just fine using port A (GPIO0 and GPIO1): Wire.begin(GPIO_NUM_1, GPIO_NUM_0); I2C requires pull-up resistors on both lines. GPIO8 already has a 10k pull-up resistor. Did you add a pull-up resistor to GPIO7 as well? Some I2C slave devices might already have pull-up resistors in place tough. Edit: I've just tried with GPIO7 and GPIO8. The I2C scan works with those two GPIOs for me as well. Thanks Felix