Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...

In this project, I'll make a small circuit capable of controlling a servo, it is a servo tester made out of a 555 timer IC. In the process of making this circuit, we'll make a pcb design for it. This ...

A low pulse on this pin (below 1/3 of VCC) sets the internal flip-flop and makes the output go HIGH. When the voltage on this pin reaches 2/3 of VCC, it resets the flip-flop, and the output goes LOW.

As we grow through our lives, we realise that we must take care of our previous and next generation members, and it is a challenge to maintain their medication schedules in the middle of today’s ...

Take a Raspberry Pi Pico and connect a 555 timer to one of its GPIOs. Arrange for the 555 to poke the Pico about 10 times a second. Treat that "poke" as an interrupt. On the interrupt, light the ...

This light cum room freshener module offers two choices. In the first choice, the room freshener spray and a small LED light get activated for three to five seconds. In the second choice, where a ...

What is the point of reviewing a cheap timer module, especially if it is based on the ubiquitous 555 timer chip? Recently I got an ‘updated’ version of the common 555 timer relay module. This time it ...