All Projects
LoRa / Radio
Tank Level System
LoRa display gateway + pressure sensor
ESP32-C3ESP32-S3LoRaGC9A01 DisplayTL-136MQTT
Description
Multi-part IoT system consisting of an ESP32-C3 display gateway with round GC9A01 touch LCD and an ESP32-S3 LoRa sensor node with TL-136 pressure sensor. The sensor node measures the tank level via pressure sensor and sends the data via LoRa (SX1262) to the gateway. The gateway displays the level on the round display and forwards data via MQTT/WiFi.
Safety note: Rebuilds at your own risk. This description is a personal documentation, not a verified build guide, and the values given are experience-based estimates without any guarantee. Details under Disclaimer (German).
Want something like this built?
Smaller projects along these lines are available as the "LoRa Sensor Node" package from 349€. A project of this size I quote individually, just get in touch.
I deliver software only (firmware, configuration, code) — no assembled hardware. The components used are only linked for reference, you buy them yourself. Enclosures on request.
Features
- Round touch display (GC9A01)
- LoRa radio link to sensor
- TL-136 pressure sensor level measurement
- MQTT forwarding to smart home
- Weatherproof outdoor sensor
Techstack
Hardware
- ESP32-C3
- ESP32-S3
- SX1262 LoRa
- GC9A01 LCD
- TL-136 Drucksensor
Software
- PlatformIO
- LovyanGFX
- RadioLib
- MQTT
Integration
- Home Assistant
- MQTT Broker
