Receiver implementation a TFA Dostmann Stratos 35.1077.54.S2 weather station with 30.3151 thermo/hygro sensor), a 30.3152 rainsensor, and a 30.3153 anemometer for micropython using a CC1101 868 MHz receiver and an SSD1306 128x64px OLED display.

Received data is published to an MQTT server using the built-in WiFi if available, to the following topics

tele/{MQTT_TOPIC}/SENSOR
tele/{MQTT_TOPIC}/DFC
tele/{MQTT_TOPIC}/STATE
stat/{MQTT_TOPIC}/RESULT

as JSON object.

• SENSOR and DFC are published each time weather and time data are received respectivley.
• STATE contains internal like RSSI, and last successfull sensor reads and is publishd every 60 seconds or whenever some important state change happened.
• RESULT contains interals on decoding the bytestream received from the TFA station.

Upload to Device

install required tools

pip install --user -r requirements.txt

Precompile libraries

mkdir -p lib
3rdParty/micropython-font-to-py/font_to_py.py -x /usr/share/fonts/truetype/NotoSans-Condensed.ttf   15 lib/NotoSansCondensed15.py
3rdParty/micropython-font-to-py/font_to_py.py -x /usr/share/fonts/truetype/NotoSans-Condensed.ttf   18 lib/NotoSansCondensed18.py
3rdParty/micropython-font-to-py/font_to_py.py -x /usr/share/fonts/truetype/NotoSans-Condensed.ttf   28 lib/NotoSansCondensed18.py

find lib -name "*.py" -exec mpy-cross {} \;

mpy-cross 3rdParty/pycc1101/pycc1101/pycc1101.py -o lib/pycc1101.mpy
mpy-cross 3rdParty/micropython-font-to-py/writer/writer.py -o lib/writer.mpy
mpy-cross 3rdParty/micropython-lib/micropython/umqtt.simple/umqtt/simple.py -o lib/umqttsimple.mpy
mpy-cross 3rdParty/micropython-lib/micropython/drivers/display/ssd1306/ssd1306.py -o lib/ssd1306.mpy
mpy-cross 3rdParty/3rdParty/usyslog/usyslog.py- -o lib/usyslog.mpy
mpy-cross 3rdParty/crc8/crc8.py -o lib/crc8.mpy
mpy-cross 3rdParty/crc/crc.py -o lib/crc.mpy

Upload everything to microcontroller using ampy

PORT=/dev/ttyACM0
find lib -name "*.mpy" -exec ampy -p ${PORT} put {} {} \;
find src -name "*TFA*.py" -print0 | xargs -0 -L1 sh -c 'ampy -p ${PORT} put "$0" "$(basename "$0")"'

or everything to microcontroller using pyboard

PORT=/dev/ttyACM0
find lib -name "*.mpy" -exec  ~/src/micropython/tools/pyboard.py --device ${PORT} -f cp {} :{} \;

Per default, only one additional REPL is allowed in the ESP32 port of micropython. To have both, webrepl and REPL over secondary UART enable, you have to compile micropython manually after chaning

#define MICROPY_PY_OS_DUPTERM (3)

in ports/esp32/mpconfigport.h

Compile then with IDF.py

. ~/esp/esp-idf/export.sh
cd ports/esp32
make