Simple Light to Frequency Converter Circuit using Timer IC 555 changes light brightness into frequency signal, it is useful for light measure, optic sensing and automation. Also, circuit uses IC 555 timer in astable mode and photodiode to catch light, as more light means more frequency which is easy to see link between light and […]
555 Timer Projects
Automatic Night Lamp Circuit using Battery Power
Automatic Night Lamp Circuit using Battery Power works on battery and saves energy, it turns ON in dark and OFF in light. Furthermore, this circuit is good for bedroom, hallway, stairs and gives light at night and it also uses two 1.5V batteries and has 7555 timer chip, LDR as light sensor and LED as […]
DIY Parking Sensor Circuit using IC 555 and IC LM324
DIY Parking Sensor Circuit using IC 555 and IC LM324 is smart device as it helps driver while parking a car, also it finds nearby things that can block the way. Circuit has two parts: Transmitter Circuit: which sends IR light using IR LED around the car. Receiver Circuit: which gets back the IR light […]
Car Turn Signal Circuit with Chasing Effect
Car Turn Signal Circuit with Chasing Effect is important project for electronic, in which it shows if driver turn left or right; also this circuit make lights blink one by one like in new cars. Moreover, it uses two main parts: 555 timer IC and CD 4017 counter IC. First IC1 make blinking signal and […]
Audio Signal Distributor Circuit with Three Outputs
The Audio Signal Distributor Circuit with Three Outputs splits one audio signal into three outputs without losing sound quality, it uses an NE5532 op-amp along with BC337 and BC327 transistors. It send same audio to three outputs and also the circuit is useful for sound system, headphone splitter or sending sound to many rooms. Circuit […]
Super Sensitive Intruder Alarm Circuit
This article for Super Sensitive Intruder Alarm Circuit talks about very simple but strong intruder alarm circuit, also it is very sensitive. Furthermore, this circuit is useful for security and it can detect very small Interference. This circuit uses IC 741 op-amp and IC 555 timer to work and it also use LDR (light sensor) […]