SmartTherm

Version 0.8.2

Open source for SmartTherm ESP8266/ESP32 OpenTherm controller

Use:

• code of OpenTherm Library by ihormelnyk
• AutoConnect Library by Hieromon
• DS18B20 Library by robtillaart

Build with PlatformIO

Features:

• Captive portal before WiFi connection
• Web interface after WiFi connection
• OpenTherm interface for Gas/Electric boiler contol (HVAC)
• Personal cloud control used
• Android application for local/remote control (betatest)
• TCP/UDP API interface
• up to 2 DS18B20 temperature sensors

0.8.2

• Add build variant with onboard relay
• Add support for OT:MaxRelModLevelSetting
• Add support for OT:RemoteRequest (BLOR)

0.8.1

• At PID startup and room setpoint change recalculate the integral part of PID to speed up reaching the target setpoint. I.e start and restart PID with non zero integral

0.8.0

• TCP API changes for Andriod application & remote server support
• PID changes
• add use ID29 (Tstorage) as Indirect Water Heaters temperature for Buderus
• Immergas fix

0.7.5

• add WinterMode (ID0:HB5) and Use_OTC (ID0:HB3) support
• speedup OT startup ~2 sec
• add binary CH and HW sensors to MQTT
• MQTT connect after detecting boiler Capabilities if OT work
• MQTT connect to server without reset at MQTT config changes

0.7.4 changes

• PID + weather-compensated automation (standalone + HA)

0.7.3 changes

• fixed autoreconnect to WiFi

0.7.1 changes

• Add MQTT and MQTT discovery for home assistant

v 0.6 changes

• TCP/UDP interface, Windows/Linux application SmartServer for TCP/UDP API
• config saved and read after reboot
• Hot water and CH2 enabled
• Increased free RAM

License

Copyright (c) 2022-2024 Evgen2. Licensed under the MIT license.