Dual-Sensor Temperature Controller

This project builds a temperature controller using an ESP32 microcontroller paired with two independent temperature sensors. The system monitors two separate zones or devices and can trigger relay outputs based on configurable temperature thresholds, making it ideal for applications like greenhouse management, incubator control, or dual-zone heating systems.

The guide includes a complete wiring diagram showing how to connect both sensors to the ESP32's analog inputs, a full parts list with sensor specifications, and step-by-step assembly instructions. Firmware code is provided to read sensor data, compare against setpoints, and control relay outputs, with all configuration parameters easily adjustable through the sketch.