This repository provides:

• A very minimal firmware targeting bluepill boards (f103c8_128k)¹ which, paired with a 433Mhz receiver (e.g. cheap Superheterodyne from AE) on pin PB1, decodes all Ambient Weather F007TH (OOK pulse manchester) frames and spits them out as JSON lines on USB serial.
• A very minimal Go binary that reads back said JSON lines and exposes them as Prometheus gauges: device id, channel, temperature, humidity, battery and an optional location (matched using channel).

Arduino (bluepill) firmware flashing

See platformio.ini for flashing instructions for bluepill boards.

generic_boot20_pc13.bin is one possible source for the DFU bootloader.

$ nix build '.#upload-stm32'
$ ./result/bin/upload-stm32

Serial to Prometheus Go exporter

$ nix build '.#rtl_433_f007th_prometheus'
$ ./result/bin/rtl_433_f007th_prometheus -serial /dev/ttyACM0

Footnotes

1. Should work for any Arduino-ready board. ↩