ESP8266 based project for measuring water level in tank using ultrasonic sensor complete with 3D printed enclosure accesible through web interface.
- https://arduino-esp8266.readthedocs.io/en/latest/installing.html
- ArduinoJson
- StreamUtils
- https://github.com/me-no-dev/ESPAsyncTCP/archive/refs/heads/master.zip
- https://github.com/me-no-dev/ESPAsyncWebServer/archive/refs/heads/master.zip
- WeMos D1 Mini Pro 16MB ESP8266 WiFi modul (pro model to attach pigtail+antenna)
- Logic level shifter
- JSN-SR04T
- MaxLink omnidirectional dipole antenna 10dBi 2,4GHz, RSMA 01-VS-MDB10
- pigtail
- USB charger - micro usb
- 4 M3 threaded inserts
- 4 M3x10 screws
- cables for wiring
- solder if needed
- compile and upload firmware + static files (how to)
- on first boot, the board sets up WIFI AP with default "watertankmeter" SSID and "watertankmeter.local" address
- connect and setup WIFI and tank dimensions and sensor distances
- NOTICE: minimum full distance is 20cm - which is the minimum distance the sensor can measure
- Better to keep the sensor at least 30cm above the maximum water level
- The logic of distances on picture below
