Wide voltage (3V-5V) power supply
10K full range potentiometer.
The intermediate tap of the potentiometer is a total of 100 levels in the 0-10k.( the typical impedance of potentiometer sliding side is 40 ohm)
Digital potentiometer VL and VH port are respectively corresponding to the sliding rheostat low-end and high-end, allowing the input voltage range -5V to +5V.
Digital potentiometer module with test procedures, the program code for the C language code, sub module. The code includes: the main function, the display sub function, the key sub function and the module of the header file.