Need Help: ESP32 C3 MINI-1 I2C Setup
Posted: Fri Jul 11, 2025 9:42 am
Hello, I use the ESP32-C3 Mini-1 module to implement the BMI270 sensor and I²C communication.
Environment
Board: ESP32-C3 Mini-1 (N4) Module
Firmware Framework: ESP-IDF V5.4.2
Sensor: BOSCH BMI270 (I²C address 0x68)
+ SCL/SDA Pull-up Resistor 10k
when i initialize the i2c, unexpected nack detected..
Can I use GPIO8 and GPIO10 with I2C SDA/SCL?
I refer to the following for schematic
https://github.com/esp-rs/esp-rust-board
in that schematic, they use gpio10 and gpio8 for scl/sda
Environment
Board: ESP32-C3 Mini-1 (N4) Module
Firmware Framework: ESP-IDF V5.4.2
Sensor: BOSCH BMI270 (I²C address 0x68)
+ SCL/SDA Pull-up Resistor 10k
when i initialize the i2c, unexpected nack detected..
Can I use GPIO8 and GPIO10 with I2C SDA/SCL?
I refer to the following for schematic
https://github.com/esp-rs/esp-rust-board
in that schematic, they use gpio10 and gpio8 for scl/sda