In an effort to find a vaguely affordable, 5v two-way radio solution with a decent range, I’ve been attempting to port the simplex RS-485 protocol I’ve been working on to work with pairs of 434Mhz radio transmitters and receivers.
Each node is to have a transmitter and receiver which can be enabled or disabled from code, following the same scheme as the 485 transceivers used on the wired network, and the same protocol can then be sent over wire and wireless alike.
However, at the moment I’m simply experimenting with the hardware to see if I can get a stable, long-ish range link using various Arduinos (Arduinae?) as my development platform.
For the curious – the JST connector on the micro board is for power, and is hooked up such that the normal polarity for a LiPo battery lines up with the GND and RAW pins on the board, hence the odd orientation.