HC-12 RC Transceiver
I built an RC transmitter and receiver with an HC-12, because why the #!@K 3.3v when you can 5v in a better package?
Categories for Wireless Communication
HC-05 Arduino Bluetooth Cat Locator
We made Goose a bluetooth collar out of an HC-05 and a 3v Arduino. Its sort of like a primitive avalanche beacon, or glorified keyfinder.