Distinctive Merit

DC Motor Monitor/Controller
This project monitors and controls rotation, temperature, and voltage for two small DC motors. The feature-rich Tiny 3687 is the brain of the operation. For versatility, one of the DC motors is manually controlled by a potentiometer, and the other is controlled by the microprocessor. A small, simple auxiliary circuit was designed to control the DC motors and their power supply. A DAC was added, plus transistors for power control and resistors for bias. In addition, the 2 × 16 LCD in the Tiny Starter Kit was replaced by a 2 × 40 LCD to enhance the display capability.

Jose Orlando Ribeiro
Brazil
jorlando@uol.com.br

Abstract | Entry