- After following Figure 1(a), (b) diagram instructions in Wiring Diagram sections . Connect a Transistor Output Expansion module in to the 40
pin board to board connector in CPU Module (Explained in MC-CPU-CM4-Gx datasheet). - Now open Terminal Window after turn on the CPU Module.
- Type ‘i2cdetect -y 0’ command and run the command.
- The result will be similar to the Figure 1 shown below.
- Here the ‘0x27’ is the Transistor Output expansion module I2C address, This I2c address can be changed according to user requirement
by changing the DIP switch configuration (Check Figure 1(a)) on expansion module.


- Follow the File Manager > Pi > Rpi_Moduler_test path, then open Rpi_Moduler_test folder.
- In Rpi_Moduler_test folder include example program for every expansion module.
- Select the MC_EX_MC23xx_TOUT.py example program that matches with the Transistor Output expansion module shown in Figure 2.

9. The python program will open on default Thonny Python IDE. Click RUN for start the program shown in Figure 3.
