• 1
    Video Walkthrough

    The optional Bluetooth feature can be used to manually toggle & control the water pump wirelessly from your smartphone.

    Develop: Are you a programmer, engineer or designer who has a great idea for a new feature/design in Sprout? Maybe you're just a beginner or you've spotted a bug? Feel free to grab our code, schematics, 3D design files & laser cutting files from Github and tinker with it.

    Sprout: GitHub

  • 2
    Electronic Design

    Electronic Components Required:

    1x Arduino Nano/ Arduino Pro Mini

    1x DC Water Pump 12V or 9V

    1x Soil Moisture Sensor

    1x LM7805 Voltage Regulator

    1x IRF540 MOSFET

    1x 220 Ohm Resistor

    1x IN4001 Diode

    1x Header Pins Strip

    1x 2-Pin Screw Terminal

    1x DC Power Jack (Male + Female)

    Optional: 1x HC-05 Bluetooth Module

    Power Block

    The 7805 regulates the supply voltage and reduces it to a constant 5V making it suitable to run the Arduino & Soil Moisture Sensor.

    Pump Control

    The MOSFET acts as a switch which is controlled by the Arduino. We use the MOSFET since the Arduino cannot directly power the DC Pump. The resistor connected to the gate of the MOSFET prevents the MOSFET from getting damaged. The flyback diode connected across the pump provides a path for dissipation of stored energy when the pump is switched off.

    Moisture Sensor The sensor feeds an analog value to the Arduino. The threshold level of moisture is calibrated by the user depending on the type of plant used and the typical h

    Bluetooth Module

    Uses Serial Communication to transfer data between the Arduino and your Smartphone.

  • 3
    Electronic Assembly

    A 1x Scale printable PCB as well as the board view and schematic is available in the GitHub repository.

    Sprout: GitHub/Electronics

    The repository also contains an A4 size PDF which contains multiple PCB's on a single page. This can be used to make multiple PCB's at a time for mass production

    Solder all the components according to the given Schematics.

    The editable Eagle files are available below.