Lets you choose to use Arduino pins, shift register Input/Output, I2C PCF8574/PCF8575, AW9523, and MCP23017 in an inter-changable way. Use it in your sketch to treat shift registers or i2c expanders ...

The sensors’ outputs are connected to the analog input pins as follows: You can refer to the image below ... All the modules are powered with 5V from the Arduino. Below is the assembled image of the ...