raspi_plant_checker

Houseplant management system using Raspberry PI

Background

I grow a banyan tree at home, but I forgot to water it and almost died.

To prevent such a mistake, I have created a module that automatically measures the timing of watering.

Setup

Prepare

Buy in advance below.

• Raspberry PI (model 2B+/3/4/Zero WH)
• Soil humidity sensor (YL-69)
• Temperature and humidity sensor (DHT11)
• Photoresistor
• A/D converter (ADC0832)

Setup Python3 for Raspberry PI

sudo apt-get update
sudo apt-get install build-essential python3-dev

Setup ADC0832

curl https://raw.githubusercontent.com/sunfounder/Sunfounder_SensorKit_Python_code_for_RaspberryPi/master/ADC0832.py

Setup DHT11

git clone https://github.com/adafruit/Adafruit_Python_DHT.git
cd Adafruit_Python_DHT
sudo python3 setup.py install

Setup Dependencies

pip3 install -r requirements.txt

Setup for sensors

• A/D
  • CS: Pin 11
  • CLK: Pin 12
  • DI/DO: Pin 13
  • VCC: Pin 15
  • GND: GND
• YL-69
  • VCC: Pin15
    • When power is applied constantly, electrolysis will occur and the sensor will rust.(not use 5v/3.3v)
  • Data: A/D(CH0)
  • GND: GND
• DHT11
  • VCC: 5v or Pin15
  • Data: Pin7
  • GND: GND
• Photoresistor
  • VCC: 5v
  • Data: A/D(CH1) with 10kΩ Resist
  • GND: GND

Usage

Enter command below, run API server.

python3 main.py

API Reference

Get temperature

- GET /temperature

Response

{
    "key": "temperature",
    "value": 20.2
}

Get humidity

- GET /humidity

Response

{
    "key": "humidity",
    "value": 60.5
}

Get light

- GET /light

Response

{
    "key": "light",
    "value": 175
}

Get moisture

- GET /moisture

Response

{
    "key": "moisture",
    "value": 0
}

Use with Zabbix

If you use Zabbix, you can collect metrics for external scripts.

• First, set collect_zabbix.sh to Zabbix's external scripts.

git clone https://github.com/tubone24/raspi_plant_checker.git
cp raspi_plant_checker/src/collect_zabbix.sh /usr/lib/xabbix/externalscripts/
chmod +x /usr/lib/xabbix/externalscripts/collect_zabbix.sh

• Import Temprate zbx_export_templates_plant_checker.xml

• Create a new host with the template and set macro.
  • IPADDR: your Raspi IP
  • PORT: default 8000

• Enjoy collect metrics and show graphs!

Demo

Setup my Raspberry PI and check my banyan!