programmable

I need a circuit that turns on an LED and plays a sound repeatedly when a button is pressed, and stops the sound and light as soon as the button is released. It needs to be battery operated, preferably by coin or button batteries. The issue is that I need it to be very small (1.5cm x 2.5cm)...

I want to build a ir cloner and transmitter for electronic devices (tv, home theatre,AC,etc) with NODE MCU so that i can control all the devices over wifi with my phone. There are may tutorials for making this type of project but all of them include manually inputting the "ir code"(not sure...

Hi everyone and sorry if this is the wrong section. I have a problem findings the correct piece of power supply.. What I need: A power supply I can connect at home (220VAC, 50/60hz) Output Voltage/Current enough to Power at least 1 ESC + brushless motor + propeller Up to 15 V output Up to...

A real long shot, but I thought I would ask anyway. Does anyone have a user manual or have any experience of using a Nicolet Model 42 Arbitrary Programmable Function Generator? Its an old piece of kit, circa 1986.