My wife wanted something to control the humidity of the soil and to "pour" some water for her plants when required. So I decided to play a little with my Arduino and my Raspberry Pi. I want her to be able to retrieve the humidity of the soil and depending on the read decide what to do, so I will use my existing Arduino to read the data and activate the water pump, and my Rasp Pi to host a Java Spring Bott web app to provide her a screen to read the info and activate the pump. Because it is a web app... She can do this from everywhere :)
- Moisture Sensor/s Calibration
- Water Pump/s Calibration
- Realtime moisture sensor/s read
- Turning on/off the water pump/s
- Saving the configuration
- Arduino Uno WiFi or Arduino MKR Wifi
- Water Pump
- Moisture Sensor
- 5V Relay Module
- Or kit Water Pump + Moistrure Sensor + Relay
- JDK 11
Optional
The water pump that I choose operates with 3V-5V and 100-200mA, the Arduino board does not have enough power to power on the pump. I have to use an external power source just to provide the energy to the pump, and Arduino only to send the On/Off signal.
The Raspberry Pi is not required, I already have one so I decided to deploy on it the Java Spring Boot app. You can use any computer with a running JVM
- Authentication (Mmmmm I'll see. VPN is more than enought at the moment)
- Anything else that might come up in my mind (or my wife) :)