Chick - chicken coop v3 Configuration v3.3

The project is designed to automate the keeping of birds, e.g. for a hen house. The focus is on maintaining a comfortable climate and automatic feeding.

chick-3.15.4.bin

Readings

SelfTemp Board temperature
AirTemp Air temperature
HeatTemp Heater temperature
AirHum Air humidity
SunLight Illumination
WaterLevel Water level
EggAmount Egg production
WindowPos Window position

Devices

SelfFan Cooler
AirFan Ventilation
AirHeat Air heater
SunLamp Lamp
WaterBowl Water Bowl
FoodBowl Food Bowl
Window Window

Chick

Chick PCB v3.2

The project assumes the use of a large number of sensors and devices, so the chip PCF8574 is used to increase the number of GPIO pins. This basic version of the project is used most often, plus it provides connection of all declared sensors and devices. Of course it is not necessary to connect all of them. Note that this version of the PCB does not have built-in relays for controlling devices. Instead, the board has connectors for connecting various universal modules, e.g. Universal B, Universal D, Universal E.

Printed circuit board and description

Drawings PCBWay JLCPCB

Typical board size is 92x92mm.

Управление вентилятором SelfFan осуществется прямо с платы U=5V, Imax=200mA.

The temperature sensor of the module SelfTemp, can be placed directly on the board without connection via a connector.

The circuit can be powered from a single power supply 12V, thanks to the built-in voltage converter based on the stabilizer LM7805, which is activated by the jumper DC5V.

The circuit provides connection of an external LED Led, signaling the controller operation.

The circuit provides power supply PwrSens for the sensor WaterLevel, only at the moment of measurement. This is done in order to reduce the corrosive effect of sensor degradation.

To determine the water level in the drinker is used sensor WaterLevel with analog output. It can be capacitive or resistive type, maximum signal voltage up to 3.2V. The sensor is calibrated in the section "Controller Service", tab "Configuration". For this purpose, the minimum and maximum values are set when it is completely wet and dry. Based on these values, a resulting reading from 0 to 100% will be generated. You can check the reading in the "Controller Service" section, "Report" tab, where the current analog value is displayed WaterLevelRaw.

The outputs EggAmount and WindowPos use interrupts and are connected via an optocoupler. The supply voltage of the sensors is 12V. The circuit provides a pull-up resistor, so a reed switch or Hall sensor A3144 can be connected directly.

Universal! The designed board provides for partial placement of elements. For example, if you do not plan to use any sensor or device, you can not solder their radio components.

Attention! When working with high voltage, remember that it is dangerous to life and can cause fire!

Schematic diagram

Attention! The proposed circuit is typical and can be modernized according to your preferences and requirements. You do not have to use all the components specified in the schematic and connect them! Similarly, you can use this project not for its intended purpose, replacing devices and components with any other.