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6 Zone Heating System

I have 5 heating zone to control and domestic hot water in total i have 6 zone heating system, Four zone are on first floor with wired thermostat treated as single zone, ground floor zone with Nest wireless thermostat and domestic hot water with wired thermostat. I have 3 relays (1 for each zone) for upstairs and downstairs with electric zone valve, so when the thermostat close then zone valve power up and open zone and send 220 to zone…

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i2C Interface

Low power relays boards are one of the most common interfaces between a Arduino/Raspberry Pi and the outside world. These relay boards provides electrical isolation between the low voltage circuits of the Arduino/Raspberry Pi and the high voltage loads. So why this I2C relay board? i2c relay boards only requires 4 pins from Arduino/Raspberry pi to control up to 128 relay. Raspberry Pi i2c Example of controlling i2c relay board from Raspberry Pi 1 – +5V 2 – GND (common…

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Temperature Deadband

Idea is to have different cut in and cut out temperatures. In most cases it does not matter if temperature is sport on with accuracy of 0.1 degree specially for hot water. If you have deadband for active set-point you check if temperature is < set-point – deadband to start zone and you check that temperature is >= set-point+deadband to stop zone. This way you don’t cut in/cut out that often. This approach is used if you know that you…

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Zone Schedule with Conditional Coop start

PiHome Smart Heating Zone Schedule with Conditional Coop start: Idea is to have option in the schedule for the zone to have conditional coop cut in. Probably no big use for it if you have 3 zones, but might be handy for example for hot water, it makes more sense with multiple zones, with many zones there will be one of them cutting in after the other so probably boiler will run all the time. Zone with Coop Start Idea…

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Roadmap/Feature for PiHome

  i have tons of email from lots of people requesting different features and upgrades so i thought to have post on site about roadmap/feature requests for PiHome so we can share ideas what we can do and what is needed and how community can help and contribute, right now everything is under one post but once we get things moving we can have one dedicate page for each upgrade. List of request/features Under Floor Heating with Higher Inertia E-mail…

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One Zone Heating with Hot Water

Hi, Rafal here . I bought from you smart heating system PiHome on adverts. I just would like to double check if this system configuration will fits to my needs. Image below explains my current home heating scheme. Basically first of all I would like to have possibility to “manually” control my boiler and solenoid from your application, simply on/off button for boiler and solenoid in application dashboard. Then automatically turn on and off boiler and solenoid when temperature in…

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Boost Console with TFT Screen

This boost console is made by PiHome Smart Heating user and code contributor Terry Adam and he agreed to share his version of boost console. This boost console uses a 2.4inch ILI9341 based TFT screen. It also acts as a local thermometer, but displays the zone control thermometer temperature and the zone target temperature. Also shows the CE and HW on/off state, when on the red square is filled if the control relay is on, else it is not filled.…

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Smart Heating Flow Chart

This is step by step process/flow chart on how PiHome Smart Heating make decision when to turn on heating and when its time to turn it off and save on gas bill and keep desirable temperature at any given time. The chart is self explanatory, leave comments below for any suggestion or improvements you think I should add. (Thank to Paul Harness for updating this)

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Crontab/Schedules

PiHome Smart Heating controller required some task to be schedule on regular interval to function properly, add all following crontab jobs as root Database Cleanup: Delete Temperature records older then 3 days. Delete Node Battery status older then 3 months. Delete Gateway Logs data older then 3 days. if you want to keep all data comments following line.

Get CPU temperature and update database.

Update Weather from OpenWeather, Make sure you signup to openweather api and update api…

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Buy PiHome Smart Heating – DIY Raspberry Pi Home Automation Kit for Smart Heating

Buy PiHome Smart Heating – DIY Raspberry Pi Home Automation Kit for Smart Heating:  PiHome – Smart Heating Control is central heating control systems that runs on Raspberry Pi. You can control your home heating from your smartphone, laptop or tablet. PiHome is a wireless boiler control which mean you don’t need to run cables from PiHome controller to your boiler or to your heating zone valve or to any temperature sensors in any heating zone. PiHome can manage nearly…

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