ESP8266 based thermostat
ThermoX is a low cost Internet-enabled thermostat that uses the Blynk mobile app as its interface.
Features: 1) User location awareness for geofenced activation and deactivation 2) Alexa voice control 3) "Perceived temperature" mode (compensates higher perceived temperatures due to Summer humidity) 4) +/- 5 degree temperature correction 5) User adjustable hysteresis levels 6) 15 minute pulse mode 7) User adjustable minimum / maximum temperature settings 8) Color coded status shown on Actual Temperature widget (Blue = AC on, Red = head on, Green = off)
Basic hardware: ESP8266, relay DHT11 temperature sensor, 4.7k resistor.