I2C not working with AMB82 mini

Hello, I’m having an issue with I2C on the AMB82-Mini. I’m using Arduino IDE v 2.3.3, and so far, everything else functions properly. However, the board fails to connect to any I2C device (MPU6050, AHT10). It will however correctly identify the device address when using the provided I2C scanner example. I checked the clock and data pins with a scope while running the I2C scanner and found them to be floating instead of being pulled-up as they should be. I checked my setup on a correctly working esp32 and the clock/data lines were pulled up as expected, data/clock signals were also observed every 5 seconds. I did not see any clock/data signal with the AMB82. - Does anyone know what could be causing this? I’m running the latest boards package from Ameba, v 4.0.7. Thanks for any help!

Hi @benkolar,

Can you trying adding pull up resistors to i2c SCL and SDA pins?

Thank you.