走马观花

MCP41xxx Digital Potentiometer Verification Board

Overview

This project is used to verify the solution verification board design of the Lichuang Mall digital potentiometer chip MCP41010/MCP41010T/MCP41050/MCP41100 (product number C17064/C136395/C124138/C56660). PW0 of MCP41xxx is the sliding end of the potentiometer; PA0 and PB0 are the two terminals of the potentiometer; SCK and SI are the serial clock and serial data lines of the SPI bus. They have been connected to STC15W401AS and can be controlled by sending data to STC15W401AS through the serial port. Digital potentiometer. The operating voltage is 2.7~5.5 V. During power-on reset, the data register is automatically set to 80H, and the sliding end PW0 points to the middle of PA0 and PB0. There are 4 preset buttons. You can set the step value when serial port control is not used, and use the buttons to change the resistance of the potentiometer.

Design Files

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Update:2024-11-22 17:42:54

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