In this exercise, you will build a connected fan. Once a specified temperature has been reached, the Home Yún signals the Control Yún and allows it to turn on the fan.
You will build a test version and once it runs correctly, you will then add it to the other devices connected to the Home Yún.
Materials:
- Arduino Yún
- Jumper wires
- RGB LED
- Breadboard
- Pushbutton
- DC motor
- Transistor
- 10k resistor (The colors on it are brown ,black, orange and gold)
- 150k resistor (The colors on it are brown ,green , black, orange and brown)
Assembling the MDF components
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Fit DC motor into corresponding slot in ceiling piece and attach fan blade
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Attach wall and feet to top piece
- Construct the MDF parts to hold the DC motor.
- Open “e3_fan_test” from the examples.
- Upload the sketch to your Control Yún.
- Open the Serial Monitor and test the fan.
- If it works, disconnect the fan section and connect it to the Home Breadboard Unit according to the overlay.
- Once you have removed the fan section, connect the RGB LED to your Control Yun.
- Open “e3_fan_control” from the examples.
- Upload the sketch to your Control Yún.
- Once the Home Yún’s temperature has gone above a specified threshold, you should then be able press the button to turn on the fan. If the temperature goes below the threshold, the fan will automatically stop.