Climate Control v3 Configuration v3.3
One of the top tasks of a Smart Home is to control its heating. Of course, that's just the start. The next steps are automating air circulation and dealing with low and high humidity. We combined these key issues for a comfortable climate at home or elsewhere into one project named 'Climate Control'. With it, you can easily start home automation, even with just one portable heater. Note, that there are several PCB board designs for this project.
Sensors
- SelfTemp Board temperature
- AirTemp Air temperature
- HeatTemp Heater temperature
- AirHum Air humidity
Devices
- SelfFan Cooler
- FuseHeat Fuse
- AirFan Ventilation
- AirHeat Air heater
- AirHumid Humidifier
Climate PCB v3.2
The basic controller of the Smart Home project is great for beginners who want to learn how the system works. It displays all the capabilities but is rarely used in practice. This controller is suitable for small spaces where the devices are located close to each other. However, in practice, other printed circuit boards are often used, such as ClimatePlace, which are installed directly next to each device, such as heaters, vents, humidifiers, etc. Then, all the devices are combined into a single network.
PCB and Description
Small board size: 92x92mm.
The fan control is done directly from the SelfFan board with a voltage of U=5V and Imax=200mA.
Usually, the fuse relay FuseHeat controls a contactor that disconnects power to other devices.
The temperature control sensor module SelfTemp can be placed directly on the board without being connected through a connector.
The printed circuit board allows for the connection of high-voltage loads, but please note:
- To reduce resistance, the tracks that are switched to the relay must be additionally well tinned.
- Over time, switching a circuit with a high current can cause contact burning, so it is better to use an SSR relay as it is noiseless and durable.
The fuse is installed in front of all devices. Its purpose is to break the circuit and prevent the coolant temperature from rising to a critical level in case the relay malfunctions (contact sticking, MOSFET burnout).
Schematic diagram
ClimatePlace PCB v3.3 v3.2
Often, several heaters are used to heat a room, which are located at a distance from each other. The same applies to ventilation systems and humidifiers. That is why we created a more convenient and compact printed circuit board for this project. It has a built-in power supply and layout for easy connection of a fuse relay, a noiseless relay, and two heaters. Using such controllers in different parts of the house allows for gradually introducing smart heating without making global changes throughout the house. In addition, the load on the house's electrical wiring is evenly distributed, which reduces the risk of fire.
PCB and Description
The board has the following features:
- Compact size: 76x64mm.
- Contains a compact power supply: HLK-PM01.
- The power voltage is connected directly to the fuse relay with a maximum current of 10A.
- Connectors are installed for connecting the noiseless SSR relay.
- Connectors are installed for connecting two heaters in parallel.
- Connectors are installed for connecting external relay blocks (for example, Universal B1) to control the ventilation and humidifier.
- You can abandon the fuse and use its relay for direct heating control. To do this, you need to solder a jumper in place of the SSR-220V connector and change the heater controller settings from GPIO 4 to GPIO 13.
Schematic diagram
ClimatePlaceHard PCB v3.2
PCB and Description
Schematic diagram
ClimateHeatFan PCB v3.2 v3.1
PCB and Description
Schematic diagram
ClimateHeatFanHard PCB v3.2 v3.1
PCB and Description
Schematic diagram
Components
3D-models
