Microcontroller Performs Multiple Instrumentation Measurements (Download)

April 29, 2022

Read this article online.

When you need a versatile, multifunctional instrument for measuring six different types of parameters in the lab, the venerable microcontroller PIC16F886 is a suitable solution to perform such a task. The microcontroller in this design idea can perform the following instrument functions: voltmeter, thermometer, pulse counter, frequency counter, period meter, and tachometer.

This design requires only a three-digit numerical LCD; its total current consumption is less than 1 mA. To drive the LCD, the microcontroller’s pulse-width modulator (PWM) generates a signal to drive the common input on the LCD. The PIC drives the LCD by inverting the data on its ports with respect to the common input.

Sign up for Electronic Design Newsletters
Get the latest news and updates.