A Simple Sawtooth Wave Generator Circuit finds applications in oscilloscopes, TVs, function generators and PWM systems. IC 555 is very common and is easy to make sawtooth and voltage goes up slow and drop fast in sawtooth shape. Also, frequency changes with potentiometer and circuit works with 5V to 15V. Circuit Working: Parts List: Components […]
555 Timer Projects
Controlling a DC Motors Direction Circuit with IC 555 Timer
Controlling a DC Motors Direction Circuit with IC 555 Timer is easy to try, as this circuit is good for automation, robotics, devices needing forward and backward move. Furthermore, circuit has 555 timer, transistor, DPDT relay to change direction and this simple design is easy to build and works in both directions. Also, 555 timer […]
PWM Dimmer Circuit for 12V DC Lamp
This post is about PWM Dimmer Circuit for 12V DC Lamp which controls lamp brightness and saves energy, also main part of this circuit is IC 555 timer chip which make PWM signal. Furthermore, PWM signal change power to lamp by duty cycle and IC 555 timer works like astable multivibrator at 2.8KHz which is […]
IC 555 Timer Based Mini Flasher Circuit
IC 555 Timer Based Mini Flasher Circuit makes LED blink light with a set speed, as this circuit often uses for signal, indicator and hobby projects. Also, IC 555 timer work in astable mode to give pulses all the time and if required we can change blink speed with a potentiometer, in addition the circuit […]
Simple Dark Sensor Circuit with Buzzer
The Simple Dark Sensor Circuit with Buzzer is an easy project to build because it detects the absence of light and activates a buzzer, moreover, users can apply it in night lights, security systems and alarm circuits. Here, circuit works with LDR, 555 timer and buzzer, as low light makes buzzer ON. Furthermore, this circuit […]
PWM Based Lamp Brightness Controller Circuit
The circuit control lamp brightness with PWM, and it is good for adjusting incandescent lamp light; also it uses 555 timer as astable multivibrator to control low-power lamp. PWM controls power to lamp and changes brightness easily and this PWM Based Lamp Brightness Controller Circuit runs on 6V battery and works for many lighting needs. […]