This Cricket Stumps and Bails LED Indicator Circuit uses flashing LEDs that glow when the ball hits the stumps. The circuit detects the disturbance and immediately lights the LEDs, creating an effect similar to modern cricket stumps used in professional matches. In addition, the circuit uses a light sensor and an LM3909 IC, while a […]
Simple LED Heart Blinker Circuit with IC 555 Timer
This Simple LED Heart Blinker Circuit with an IC 555 Timer is a very easy project, it uses one timer IC, one transistor and several LEDs arranged in a heart shape, giving it an attractive and appealing appearance. When we give 9V battery power then LEDs start blinking in heart pattern; furthermore, this project is […]
Digital Display AC Line Tester Circuit
The Digital Display AC Line Tester Circuit is a compact electronic device that detects the presence of mains AC voltage without direct contact, it operates wirelessly, making it a safe and convenient mains voltage tester. When the sensing probe comes near a live AC wire then the circuit detects the field and shows the count […]
555 IC Based Schmitt Trigger Circuit
555 IC Based Schmitt Trigger Circuit is a small project, it work like comparator and comparator is ON/OFF when input cross the voltage; noise make output jump and Schmitt Trigger stop this. It have 2 limit: high and low. input goes high then output is ON and input goes low then output is OFF. Moreover, […]
Simple Wire Loop Security Alarm Circuit
A simple wire loop alarm is a small security circuit that uses a thin wire as a sensor loop and if someone cuts or opens the loop, the buzzer sounds. Also, it works on 9V battery, needs few parts, is cheap and easy to make. Circuit Working: Parts List: Components Values Qty Resistors 4.7M 1/4 […]
Buzzer Alert at 0°C Indicator Circuit
In winter season, water and surrounding air can go below zero degree and at that time it is useful to have a small alarm which tells us when temperature goes near freezing point. This Buzzer Alert at 0°C Indicator Circuit uses thermistor sensor, one op-amp IC and a piezo buzzer to make sound alarm when […]