X9C104 100K Digital Potentiometer Module

The X9C104 digital potentiometer module is a variable resistor whose resistance value can be set digitally by a microcontroller. It consists of  3 output pins (RH، RW و RL) which can replace a mechanical potentiometer which has 3 pins. This module has 99 resistance components and its resistor is controlled by a 3-wire interface.

This sensor has 10 pins:

5 pins on the left side:

• VCC: Module power supply – 5V
• GND: Ground
• INC: Changing resistor command
• U/D: UP / Down. Adjusting resistor
• CS: Chip Select. Active LOW

5 pins on the right side:

• VCC: Module power supply – 5V
• RH: Resistor High
• RW: Regulated Resistor
• RL: Resistor Low
• GND: Ground