Two-Motor Window Covering Study for HomeKit A study of a two-motor system for heavy roller blinds with 28BYJ-48 motors and DRV8825 drivers, which was tested and not used in practice. ESP8266 HomeKit Air Quality Sensor with an MQ135 A NodeMCU with an MQ135 gas sensor and a DHT22 as an air quality, temperature and humidity sensor in Apple Home, built as a test setup. LSC Smart Plug with an ESP8285 as a HomeKit Outlet The LSC Smart Connect plug from Action, flashed through its TYWE2S module with an FTDI adapter, as an Apple HomeKit outlet with over-the-air updates. ESP8266 HomeKit Garden Light EX The extended garden light: an outdoor fixture with a mains lamp on a relay, a NeoPixel strip for coloured light, and a 3D-printed housing for a motion sensor, on a board left over from the fountain project. ESP8266 HomeKit Battery Status with an 18650 Cell A proof of concept: an ESP8266 that measures an 18650 cell through a voltage divider and reports a low battery to Apple Home. ESP8266 HomeKit Garden Light An outdoor light fitting as a HomeKit accessory: a relay for the standard E14 lamp on mains voltage and a NeoPixel strip for coloured ambience light, on a board left over from the fountain project. ESP8266 HomeKit NeoPixel RGBW Light Strip A warm white RGBW LED strip in the Home app: pick any colour and a real white LED joins in as the colour gets softer. A test setup with an SK6812 strip and an ESP8266. ESP8266 HomeKit NeoPixel Light Strip EX with Effects The extended NeoPixel strip for the Home app: an EX light and an FX light with more effects, with firmware for a strip of 72 or 144 LEDs. ESP8266 HomeKit Thermostat with OLED Display A HomeKit thermostat on an ESP8266 that heats and cools, with a DHT22 sensor, a small OLED display and UP and DOWN buttons that change the set temperature by 0.5 degrees. ESP8266 HomeKit Dual Lamps Two lamps in one light fitting as one HomeKit accessory: a top light and a bottom light, two relays and a button that steps through the combinations. A test setup on an ESP8266.