Low-power stand-alone radio push-button

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The journey towards a tiny, battery operated, radio-capable push button for my openHAB system

Charlie

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Let's start!
03/02/2016 at 00:11 • 0 comments

In the project description I wrote that I wanted the button to be "portable, small, cheap and able to communicate with openHAB over radio". It means that it must be battery-operated, low-power, rechargeable, with the least possible number of components and with a way of communicating via radio.
I will probably end up designing a PCB for it so if the PCB is as small as possible it wouldn't hurt.
My goal in terms of cost per unit is around 5$/€.