This ESP32 T-Relay device is intended to monitor and control my two planted nano aquariums. It uses the ds18b20 sensor to measure the water temperature, has a thermostat function and also has an on/off schedule for lights and CO2 solenoid valve.
RaspberryReef automates the refill process and measures temperature of private reef aquariums. The application is written in JavaScript with Node.js and runs on a Raspberry Pi 3 B+.
Rainwater tank monitor with battery powered ESP32 and ultrasonic sensor
Ping sensors on house rain water tank, pressure feed tank, fish farm tank.
Monitoring water levels to help automate water storage (tank 2 sensor being installed) and site temp/humidity..
Channel for monitoring my Neocaridina shrimp tank using the ESP8266
Water softener salt level monitor. Sensor uses ESP8266-12 & HC-SR04 ultrasonic sensor. Remote uses ESP8266-12e & Nokia 5110 LCD to display the level.
Municipal potable water tank monitoring: the system consists of a Raspberry B+ with UPIS power backup, a Teltonika twct22 controller, a USB<-->RS232 converter and a 3G USB stick (huawei modem firm), recorded parameter is 3G signal, refresh rate ~20sec