Smart Home HVAC
WiFi Enabled Thermostat
Dual-relay home climate controller built with an onboard AC-DC power module, ESP MCU, LCD screen, and MQTT integration.
ESP32 / WiFi
Onboard Hi-Link AC-DC Supply
Dual Relay Control (Heating & Water)
Local LCD & Tactile Switches
MQTT / Home Assistant
Project Overview
Engineered with both safety and ease of operation in mind, this smart thermostat controls house heating and domestic hot water independently. The PCB incorporates an onboard AC-DC step-down module (Hi-Link), allowing direct connection to home mains power without external wall adapters.
Users can configure setpoints locally via a backlit LCD display and tactile navigation buttons, or remotely over Wi-Fi via MQTT broker commands integrated into Home Assistant or Node-RED.
