My goal is to press a transmitter button or touch sensitive transmitter to send a signal to receiver .
Receiver will make programmed sound or buzz
Transmitter must be a simple button
The receiver must be size of quarter, a book mark or sticker
I’m thinking a simple rf signal will suffice as it’ll be used with 10-20 feet of trans/ receiver
Or id like the receiver to be voice or phrase activated ??
Ideas ??
sounds like a simple WiFi network would do, e.g. the ESP-01 is small, e.g. 2cm*1.2cm
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