Vermes
Advanced Member level 4
It is a project of a home made driver for all the necessary equipment in a house: central heating, solar installation and fan. A central heating and pump to heat water driver was modified and developed. The device uses triacs and digital sensors DS18B20.
The driver is based on:
- Atmega8
- optotriacs: MOC 3022x4
- triacs: bt 138 x4
- temperature sensors DS18B20 x4
While writing the software, you may face problems in communication with many sensors: simply too much cable. This can be solved by reducing the resistance of the pull-up resistor +5V to the line of data of sensors DS18B20 and increasing the waiting time for a bit of 1Wire.
Front panel of the driver:
Inside:
Solar collectors:
Installation:
Installed driver:
The video below presents operation of the driver. Corrected:
- single level menu
- store setting in the EEPROM
- numbers of pages in tabs
- automatic exit from the menu after 15 seconds
- operating mode: automatic, off, on available at the switch
Link to original thread (useful attachment) – Sterownik do C.O, instalacji solarnej, wentylatora. Edycja 2