Why do I keep making thermostats? This is an off-shoot of the ESP07_Multi ESP8266 project for use as a thermostat control with OLED display, 4 buttons, sound transducer, and photoresistor. Sound now has the option of using PWM or i2s from the RX pin.

There are 2 servo style I/Os on the bottom back. 1: Power in + relay control. 2: Digital for DS18B20 probe.

Original model:

Display and web interface below. Waterbed.ino history before 1/16/2016 had a day/night setting only. The new version has 1-8 schedules, dynamically adustable through the web interface. It's only daily, but has provisions for future weekday control. There's also a vacation toggle, OLED toggle (full display with scroller, temps, blinking "Heat", or only strobing a pixel when heating for a dark room) and option to average the target and threshold between schedules instead of jump. Just keep the schedules in chronological order or it may get confused.

SSR model:

Averaged schedule