For the transmitter, he turned an Arduino Pro Micro into a USB sound card which he could plug into his laptop. That outputs both the audio signal and a 40 kHz carrier signal, implemented using the ...

Old infrared remote controls can be a great way to interface with your projects. One of [AnalysIR’s] latest blog posts goes over the simplest way to create an Arduino based IR receiver, makin… ...

Sigfox chip integrates transmitter and receiver. ... ATA8520 is a transmitter-only version of the same IC that works from 1.9 to 3.6V. Crypto engine: No: ... ATA8520-EK2-E extension board is designed ...