I didn't forget the "cheap Value Line" part of this project, but reverse engineering a gadget takes some time, writing and testing board support code even more (especially if there are many constraints, like in the case of the W1401 or the DC/DC converter).

The following boards are in the queue:

• 3 thermostats: W1209WK, XH-W1219, and W1701
• 2 cheap hackable voltmeters, both clearly designed by Chinese hacker-engineers (RX/TX available, unused ports broken out, etc)
• 1 wireless serial link module: HC12 (SI4463 based)
• 1 linear power supply: M188
• 1 hackable PWM module with LED display

The W1219, and the M188 might be the next boards to get a board folder, and a binary release. I'm open to requests, though :-).

Edit: the is an interesting W1209 related report about serial interface problems. Maybe I'll have to change the default serial interface of that board. Issue contains a test binary using a board key instead of the analog sensor header.