Additional info: https://sites.google.com/site/microprogprojects/home/componenttester This device is for testing components: - PNP, NPN transistors - N or P Channel MOSFET - Diodes, Zener diodes - Resistors - Capacitors - Inductors - Thyristors, Triacs - IGBT-s For generating PWM signals 100Hz..25kHz (uses timer1) For measuring frequency up to 4 kHz (uses timer1/comparator)