Climate — Climate control v3 Configuration v3.3
One of the most important tasks of a smart home is to control and manage heating in it. Of course, this is just the beginning. The next step will be the automation of ventilation, as well as the fight against low or high humidity. We have combined these basic issues of creating a comfortable climate in the house or anywhere else in one project Climate . With its help, you can easily start your home automation with one regular heater. Please note that several editions with different options of printed circuit boards have been developed for this project, for example: ClimatePlaceHard , ClimateHeatFanHard , ClimateTriac .
Indicators
- SelfTemp Controller temperature
- AirTemp Air temperature
- HeatTemp Heater temperature
- AirHum Air humidity
Devices
- SelfFan Controller cooling
- FuseHeat Fuse
- AirFan Ventilation
- AirHeat Air heating
- AirHumid Air humidifier
Climate PCB v3.2
This is the basic version of the project and it is best suited for familiarization and training with the principles of the smart home system. This version of the printed circuit board clearly displays all the capabilities of the project as a whole. However, in practice it is rarely used. This is due to the fact that this board is more suitable for small rooms with closely located devices. In fact, other versions of this project are used more often, which are more compact and specialized for specific tasks: ClimatePlaceHard , ClimateHeatFanHard , ClimateTriac .
Printed circuit board and description
Typical board size is 92x92mm .
The SelfFan fan is controlled directly from the board U=5V, Imax=200mA .
Typically, the FuseHeat fuse relay controls a contactor that disconnects power to other devices.
The SelfTemp module temperature control sensor can be placed directly on the board without connecting via a connector.
The printed circuit board allows connection of high voltage load, but please note:
- to reduce resistance, the switched tracks leading to the relay must be additionally well tinned;
- over time, switching a circuit with a high current (more than 5A) can lead to burning of contacts, so it is more of an educational project, in practice it is better to use other editions of this project.
Schematic diagram
ClimatePlace PCB v3.3 v3.2
Often, to heat a room, several heaters are used, which are placed at a distance from each other. Therefore, we have created a more convenient and compact printed circuit board for the Climate Control project. This version has a built-in power supply and wiring for easy connection of a fuse relay, a silent relay and two heaters. Using such controllers in different parts of the house allows you to gradually introduce smart heating without making global changes to the entire house at once. In addition, the load on the house's electrical wiring is distributed evenly.
Printed circuit board and description
The board has the following features:
- Compact size 76x64mm .
- Contains compact power supply HLK-PM01 .
- The power voltage is connected directly to the SRD-05VDC fuse relay with a maximum current of 10A . If the use of a fuse relay is not planned, a jumper can be installed instead.
- SSR-3V3 and SSR-220V connectors are provided for possible connection of a silent relay. If the relay is not planned to be installed, then a jumper will need to be installed in place of SSR-220V and AirHeat heater GPIO controller configuration will need to be changed from 4 to 13 .
- Heater1 and Heater2 connectors are installed for connecting two heaters in parallel.
- AirFan and AirHumid connectors are installed for additional connection of external relay units Universal B , Universal D , Universal E and the ability to control the hood and humidifier.
Schematic diagram
ClimatePlaceHard PCB v3.2
This version of the project is almost completely analogous to ClimatePlace , except that the fuse (or heater) relay is replaced with a more powerful one. This allows you to connect heaters with a total power of up to 2 kW to the relay.
Printed circuit board and description
The board has the following features:
- Compact size 76x76mm .
- Contains compact power supply HLK-PM01 .
- The power voltage is connected directly to the SLA-05VDC fuse relay with a maximum current of 30A . If the use of a fuse relay is not planned, a jumper can be installed instead.
- SSR-3V3 and SSR-220V connectors are provided for possible connection of a silent relay. If the relay is not planned to be installed, then a jumper will need to be installed in place of SSR-220V and AirHeat heater GPIO controller configuration will need to be changed from 4 to 13 .
- Heater1 and Heater2 connectors are installed for connecting two heaters in parallel.
- AirFan and AirHumid connectors are installed for additional connection of external relay units Universal B , Universal D , Universal E and the ability to control the hood and humidifier.
Schematic diagram
ClimateHeatFan PCB v3.2 v3.1
Unfortunately, not all rooms are initially equipped with a ventilation system, and new sealed plastic windows perfectly isolate air flows. In this case, an inexpensive computer fan with a supply voltage of 12V can be installed in the room as an exhaust hood. It is already less noisy than a classic 220V exhaust hood, but in addition, this fan can be controlled using a PWM signal, that is, adjust the rotation speed, making it even less noisy during rest periods. This version of the board is similar to ClimatePlace , but has a built-in 12V power supply, which is used both to power the chip and to control the fan. That is, this version of the board will be convenient to use when it is necessary to combine both a heater and an exhaust hood in the controller.
Printed circuit board and description
The board has the following features:
- Compact size 76x76mm .
- Contains compact power supply HLK-PM12 .
- Contains LM7805 stabilizer to convert voltage to 5V .
- The power voltage is connected directly to the fuse relay with a maximum current of 16A .
- Connectors for connecting a silent SSR relay are installed.
- Contains a solid state relay unit based on IRF540N that controls a 12V fan as an exhaust fan.
- You can refuse the fuse and use its relay to directly turn on the heater. To do this, you need to solder a jumper in place of SSR-220V connector, and change GPIO settings of the heater controller from 4 to 13 .
Schematic diagram
ClimateHeatFanHard PCB v3.2 v3.1
This version of the project is almost completely analogous to ClimateHeatFan , except that the fuse (or heater) relay is replaced with a more powerful one. This allows you to connect heaters with a total power of up to 2 kW to the relay.
Printed circuit board and description
The board has the following features:
- Compact size 76x76mm .
- Contains compact power supply HLK-PM12 .
- Contains LM7805 stabilizer to convert voltage to 5V .
- The power voltage is connected directly to the SLA-05VDC fuse relay with a maximum current of 30A . If the use of a fuse relay is not planned, a jumper can be installed instead.
- SSR-3V3 and SSR-220V connectors are provided for possible connection of a silent relay. If the relay is not planned to be installed, then a jumper will need to be installed in place of the SSR-220V and AirHeat heater GPIO controller configuration will need to be changed from 4 to 13 .
- Contains a solid state relay unit based on IRF540N that controls a 12V AirFan fan as an exhaust fan.
Schematic diagram
ClimateTriac PCB v3.2
This is a revision of the universal board project for working with a heater, humidifier and 12V fan. It contains three relays, including the main power relay for the heater in the form of a BTA16 triac. Power is routed to the devices via a safety relay. Three-pin fan control with a separate PWM signal is used. The board was developed for those who would like to make a series of universal units for themselves or their clients. It is intended to use a special metal case.
Printed circuit board and description
The board has the following features:
- Size 91x91mm .
- Contains four LEDs to indicate statuses: System, Heater, Humidifier, Fuse.
- Contains a Reset button for user reset.
- Contains compact power supply HLK-PM12 .
- Contains LM7805 stabilizer to convert voltage to 5V .
- Contains a built-in solid-state relay for the heater based on BTA16 triac.
- Contains HF115F 16A fuse relay for heater and humidifier power circuits.
- The SelfFan cooler is powered by 12V , but for quieter operation you can use a 24V cooler.
- It is assumed that a 4 -pin computer fan with a separate PWM signal will be used.
- Solid state relay unit for humidifier. G3MP-202P relay with recommended maximum current of 1A is used.
Schematic diagram
Recommended components
3D models
