This is the "watering" script to taking care of our plants controlled by a Raspberry Pi. The python script works on Raspberry Pi 2, Zero W (1/2) and above with pump, relay and magnetic switch.

"watering.py" is the main control script on the Pi. Put it in a separate directory ("/home/pi/scripts") and start it after the Pi boots up.

"index.php" is our PHP script for our web interface. Put in a specific directory under the document root of your webspace. After that you can remotly control the Pi putting this URL to the adressbar of your browser.

See it on the top gadget LED...

• blink 1x - valve1 on - or activate control
• blink 2x - valve2 on - or deactivate control
• blink 3x - reboot
• blink 4x - shutdown
• static LED on/off - start/stop watering

Documents in the schemes directory:

circuit.pdf - electronic circuit diagram
waterpipes.pdf - water pipes scheme

• Raspberry Pi Zero W (1/2)
• centrifugal pump with 1.2m head
• magnetic valves (2x)
• relais modules (3x)
• ADC similiar ADS1115
• moisture sensor v1.2 (2x)
• power supply 5V
• housing, cables
• various hoses, clamps
• adapters, control valves, ground spikes

Images in the image directory:

watering.jpg - ready solution on a barrel
controlunit.jpg - control unit under construction
web.png - web frontend