Telesto MAX10 FPGA Module

A NOR gate using transistors is a basic digital logic circuit that outputs HIGH (1) only when all inputs are LOW (0). It’s built by combining an OR gate followed by a NOT gate, using simple NPN transistors.

A Security Alarm Circuit using the LM358 IC is a simple yet effective system designed to trigger an alarm when unauthorized access or movement is detected. The LM358, a dual operational amplifier (Op-Amp), is used as a comparator to detect voltage changes from sensors like LDRs, IR sensors, or switches, and then activate a buzzer or relay.