What would you like to build?
Search Arduino, ESP32, circuits, amplifiers and more.
Ideas become circuits.
Circuits become projects.
Practical Arduino, ESP32 and electronics tutorials. Explore real projects, learn how circuits work and build something extraordinary.

Slim 64 × 16 cm Electronic Cricket Scoreboard
Slim 64 × 16 cm electronic cricket scoreboard displaying Runs, Wickets and Overs in rotation with remote and browser control.
Explore this project →Choose your next build
Tag: 555
13 articles

Remote operated musical bell
Remote operated musical bell can be made combining the following circuits. a) Remote tester b) Basic RC circuit c) Simple Musical bell When a...
Read tutorial ↗
Clap switch using 3 different modules
Practical electronics projects and step-by-step guidance for makers.
Read tutorial ↗
Toggle switch using 555
Practical electronics projects and step-by-step guidance for makers.
Read tutorial ↗
Monostable module
Practical electronics projects and step-by-step guidance for makers.
Read tutorial ↗
FREE 555 timer simulators for electronics beginners
Practical electronics projects and step-by-step guidance for makers.
Read tutorial ↗
Light activated police siren using 555 timer and light dependent resistor(LDR)
Practical electronics projects and step-by-step guidance for makers.
Read tutorial ↗
Clap switch
Simplest and easiest way to make clap switch.
Read tutorial ↗
Light operated switch
Light operated switch works with NE555 timer and light dependent resistor. It uses relay and toggle switch idea for operation.
Read tutorial ↗
Up Counter
An up counter simply counts from 0 to 9. We can use this circuit to make digital object counter. This circuit can also be used to make a digital clock.
Read tutorial ↗
Mode of NE555- Astable
This circuit has been configured in Astable mode. The output pulses are determined by the values of resistors R1, R2 and the timing capacitor C1....
Read tutorial ↗
Sound generator and Musical toy organ
One of the main objectives of LDR Engineering projects is to make students capable of developing their own logic for making devices. Here is an...
Read tutorial ↗
Mode of NE555- Monostable
Monostable mode of operation Monostable mode of operation of 555 IC can be explained using a simple touch sensitive circuit. Here, timing constant...
Read tutorial ↗