Christmas Stars

I want to hang some 3VDC strings of LED lights from a high ceiling. I want to be able to turn them on/off via a remote. Are there products available to toggle on/off a 3V load? Would the receiver of the remote need its own power supply, or would it be able to run on the same 3V power supply as the LED lights? The LED lights will be powered by plain old D batteries. For a clean look, I do not want to run wires up the walls and across the ceiling.

by canvasboatcovers
December 03, 2018
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1 Answer

Answer by mikerogerswsm

Some intelligence is required at the receive end to decode the infrared signal. Here is one way to do it:

https://maker.pro/arduino/tutorial/how-to-control-leds-with-arduino-ir-sensor-and-remote

You will need 5V. The amount of hardware is probably overkill, but is the simplest I can find.

+1 vote
by mikerogerswsm
December 04, 2018

There is a PIC which will run on 3V:

http://ww1.microchip.com/downloads/en/DeviceDoc/39663d.pdf

If you can transpose the software above to C++ then this would provide a compact 3V system.

And no, I don't know of a ready-made one. That's the joy of electronics, you design and build things yourself.

by mikerogerswsm
December 04, 2018

You might be able to cannibalise a kids' toy:

https://www.amazon.co.uk/dp/B07KZQDNBB/ref=twister_B07KZQ799X?_encoding=UTF8&psc=1

by mikerogerswsm
December 04, 2018
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