Author: Muhammad Adeel Ijaz Email: revolutionbug@outlook.com Twitter: twitter.com/revolutionbug LinkedIn: linkedin.com/in/revolutionbug =================================================== Texas Instruments EK-TM4C123GXL Laser Tripwire:- =================================================== This is a breadboard based project by which we make a laser tripwire system with microcontroller. We can get our output on buzzer and also on Serial Monitor(9600). The input is given to microcontroller using LDR and NPN BJT. BJT is used to stablize the input given to the microcontroller and for sensitivity purposes. =============== Requirements:- =============== 1- Texas Instruments EK-TM4C123GXL 2- Monochromatic Light Source 3- Buzzer 4- LDR 5- NPN BJT (BC547) 6- LM Flash Programmer (software on PC) 7- Virtual Terminal (software on PC) =========== Pin-outs:- =========== ==================================== TM4C123GXL || Buzzer ==================================== PB0 VCC GND GND ==================================== TM4C123GXL || BC547 ==================================== +5V Collector PB5 Emitter ==================================== BC547 || LDR ==================================== Base Pin-1 ==================================== TM4C123GXL || LDR ==================================== +5V Pin-2 ====================================