This document describes the development of Cytron Technologies DIY (Do It Yourself) Project No.11 (PR11). This project will use PIC16F876A to control NPN power transistor (BD135) further drive DC brushless fans, LEDs and buzzer when the certain temperature was detected. The value of temperature always displayed on a LCD screen. Circuit schematic and PIC source code will be provided.
Temperature Control System using LM35 – [Link]