- http://www.kabza.de/MyHome/GasMeter/GasMeter.php
- https://monitor4home.com/beispiele/gaszahler-mit-reedkontakt-ausstatten
- https://www.conrad.de/de/p/hamlin-flex-14-reed-kontakt-1-schliesser-200-v-dc-0-5-a-10-w-glaskolbenlaenge-14-mm-503638.html (Ca. 1,29€)
- https://www.amazon.de/gp/product/B082NJHSRH/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&th=1 (ca. 8,99 Euro)
- https://de.aliexpress.com/item/1005004356075847.html
(same board as LWL01/LWL02 Water Leak)
- https://twitter.com/things_network/status/1576108143494729728
- https://www.dragino.com/downloads/downloads/LoRa_End_Node/LDS02/LDS02_LoRaWAN_Door_Sensor_UserManual_v1.0.pdf
- https://www.dragino.com/products/lorawan-nb-iot-door-sensor-water-leak/item/181-lds02.html
- https://www.youtube.com/watch?v=a7lo_tpuNDg Unboxing
- https://forum.bastelgarage.ch/d/157-dragino-lds01-firmware-update/4
- https://www.bastelgarage.ch/esp8266-esp32/esp-zubehor/mini-usb-uart-ftdi-programmer-3-3-5v-usb-serial
- https://www.bastelgarage.ch/daplink-arm-programmer-emulator
- http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction/