DIY Solar-Powered Water Tank Level Sensor Using ESP32 + Home Assistant

Video Description

If you'd like to support me to create more projects like this one, any donation would be truly appreciated - https://coff.ee/kanejarrats In this video, I walk you through my DIY smart water tank level sensor build using an ESP32 and an ultrasonic sensor (AJ-SR04M). It’s powered by a Li-ion battery and solar panel, with deep sleep mode to save power and extend battery life. The sensor sends updates via Wi-Fi to Home Assistant using ESPHome, and only wakes up once every hour to check the water level. Whether you’re on rainwater, living off-grid, or just tired of climbing ladders to check your tank, this is a simple and effective way to monitor your water levels from anywhere. 📦 Links & files: – Soldering Iron - https://s.click.aliexpress.com/e/_o2DX1w3 – ESP32-C3 Super Mini - https://s.click.aliexpress.com/e/_oBVk1nI – AJ-SR04M Ultrasonic Sensor - https://s.click.aliexpress.com/e/_oEaAtNi – 5v Boost Converter - https://s.click.aliexpress.com/e/_opv83GY – TP4056 - https://s.click.aliexpress.com/e/_oDcbTKy – 470μF capacitor - https://s.click.aliexpress.com/e/_oE6XvxW – 6v 1W Solar Panel - https://s.click.aliexpress.com/e/_oC7Xvgg – Resistors - https://s.click.aliexpress.com/e/_ooGuPLW – My 3D Printer - https://s.click.aliexpress.com/e/_oCWZcgJ – Link to the instructions, code and hardware list - https://github.com/kane5432/ESP32-Water-Level-Sensor What’s inside the build: • ESP32-C3 Super Mini • AJ-SR04M waterproof ultrasonic sensor • TP4056 for battery charging • 3.7V Li-ion battery + 6V solar panel • Custom 3D printed case • ESPHome + Home Assistant integration Got questions or building your own? Drop a comment! 0:00 - Intro 0:59 - Components Used 2:04 - Initial Plan 2:41 - How It Works #ESP32 #DIYProjects #SmartHome #HomeAssistant #ESPHome #WaterTankSensor #IoTProjects #UltrasonicSensor #SolarPowered #batterypowered Information provided in this video is for educational purposes only. If you attempt to recreate/replicate anything you’ve seen in this or any other video, you’re doing so at your own risk.