Hardware (schematic and PCB) and software for a WIFI connected intelligent power switch. It contains a temperature sensor, PIR motion sensor, button (with LED) and buzzer and is based on the ESP8266 microcontroller. Its measurements are pubished via MQTT and it can also be controlled via MQTT. Its part of my home automation system based on a raspberry pi running Mosquitoo, Nodered, InfluxDB and Grafana.

Improvements

• Configuration of WIFI SSID/PWD via web interface
• 3D print design to keep DS18B20 neatly in bottom of the enclosure

Brief overview

• WIFI connected
• MQTT firmware written using PlatformIO
• plugs directly into the wall socket
• intelligently switches loads upto 2000W on/off
• measures the room temperature
• detects movement (using PIR sensor)
• button on front pannel for manual operation
• led status indication on front panel
• based on popular ESP8266

Hardware

Click here for hardware information

Software

Click here for software information

overview