Raspberry Pi Zero WH, with GrovePi Zero. Checks ground moisture. If moisture readings are "Dry" for x consecutive intervals, the waterpump will activate. Data is saved to moisture.csv.

• Raspberry Pi Zero WH
  • Adapter
  • 8GB SD Card
• GrovePi Zero
  • Moisture Sensor
  • Light Sensor
  • Mini Fan
• 3-6V Waterpump
  • Aquarium tubing
  • Watercontainer (bottle, bucket.....)
  • 2 female to female jumper wires

1. Download and burn Raspbian to SD card.
2. Do initial Raspbian setup, make sure to setup an internet connection.
3. Update Raspbian:

$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get dist-upgrade

4. Attach GrovePi Zero To Raspberry Pi Zero and run:

$ sudo curl -kL dexterindustries.com/update_grovepi | bash -s -- --bypass-gui-installation
$ sudo reboot

5. After reboot run:

$ sudo i2cdetect -y 1

• If the install was succesfull, you should see "04" in the output.
• See GrovePi Setup if unsuccesfull.

6. Connect waterpump to Mini Fan board:

• Carefully take off the plastic shell of both the jumperwires, on one end.
• Pull the waterpump wires through the small holes of the shells.
• Put the waterpump wires in the stripped opening of the jumperwires and attach them with some plyers
• Pull back the shells.
• Attach the other end of the jumperwires to the Mini Fan board, where the Mini Fan plug normaly goes.
• Attach aquarium tubing and put in watercontainer.

7. Connect sensors to the GrovePi ports:

Feel free to use different ports, just be sure to change them in growpi_zero.py.

8. Launch growPi:

$ python growpi_zero.py

• The waterpump in this setup produces about 5ml/second. Make sure to test how much your setup produces, results may vary.