04/14/2024

One Push On – One Push Off With One Button

A simple and functional circuit for turning a LED on and off with a single button.

For 1W Power Led:

This circuit can working with a DC power supply between 6 and 15V. If it is to be used with 6-8V, the R5 resistor should be 15R 3W as shown in the diagram. For 12-15V, the R5 resistor 27R 5W can be used.

If you want to use this circuit with classic 3mm and 5mm LEDs, you can reach the led resistor calculation page from the link below to calculate the value of the R5 resistor.

https://www.rcpano.net/led-resistor-calculator/

 

Note: Pin 2 connects to Pin 6

Necessary materials:

555 Timer IC: https://s.click.aliexpress.com/e/_DBqYxLr
10uF capacitor: https://s.click.aliexpress.com/e/_DEspOZB
IRFZ44 Transistor: https://s.click.aliexpress.com/e/_Ddsrskz
1K, 10K, 100K Resistors: https://s.click.aliexpress.com/e/_DmIcD2l
15R 3W Resistor: https://s.click.aliexpress.com/e/_Dns5QhP
27R 3W Resistor: https://s.click.aliexpress.com/e/_DCvmv53
1W Power Led: https://s.click.aliexpress.com/e/_DCzEphF
Tact micro button: https://s.click.aliexpress.com/e/_DlhWknL
PCB Prototype board: https://s.click.aliexpress.com/e/_DBXKeHr