Connect the microcontroller to the MCP9600 and program it to send and receive I²C data. Use the oscilloscope to trigger the SCL line (falling edge) to capture the I²C communication. If your oscilloscope is only showing “1” on both SCL and SDA lines, it means:
The lines might be floating high because there is no active communication.
The pull-up resistors might not be correctly connected or missing.
If you want to make a Digital temperature controller sensing with a type K thermocouple using esp32.
1 Like