Irrigation Board for Raspberry Pi Pico

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Looking to build a Raspberry Pi Pico based smart irrigation system? The Raspberry Pi Pico Irrigation Board is just what you need! This board allows the Pico to operate with 12V power and control up to 5 solenoids (or other high current inductive loads) while providing numerous interfaces for sensors!

The Raspberry Pi Pico Irrigation Board is an all-in-one 5 channel MOSFET breakout complete with a DC power converter for the Raspberry Pi Pico and Pico W. This board allows the Pico to operate within a 12V system and switch high current inductive loads such as solenoids, pumps, or large relays. The Raspberry Pi Pico is connected using the castellated edges along the Pico, these are easily soldered with a conventional soldering iron. SMD Soldering Guide

The board has 5 individually controlled driver circuits complete with an LED indicator showing when it is triggered and an integrated snub diode to protect your project from any power spikes caused by inductive loads. We have also included three connection points for analog sensors and a connection point for a flow sensor, compatible with any of our three wire flow sensors. To further extend functionality, we have also included a Qwiic / STEMMA QT connector, allowing any compatible breakout board or sensor to connect to the board.

Because this is designed for irrigation, we have added an extra feature to each of the analog inputs. Beside each of these analog channels is a solder jumper; this is used to choose your 3.3V source. By default, this is set to the 3.3V power provided by an onboard regulator but we have also allowed each analog to be powered via a separate GPIO pin. This is done specifically for soil moisture sensors and helps prevent unnecessary corrosion caused when the sensor is powered in moist soil. Since the sensors draw a very tiny amount of voltage, they can be powered this way. Simply trip the connected GPIO pin HIGH and read the analog sensor, and turn off the pin.

Finally, we have an extra I2C connection point broken out to a 0.100″/2.54mm pitch footprint – great if you want to use larger I2C based soil moisture sensors like the Adafruit STEMMA Soil Moisture Sensor.

To make mounting as easy as possible, the Raspberry Pi Pico Irrigation Board is designed to fit in a standard Hammond 1591B enclosure.

Please Note: Raspberry Pi Pico is not included.

Features

  • Input Voltage: 7 – 15VDC
  • Qwiic / STEMMA QT connector
  • Pico and Pico W compatible
  • 5 Independent Control Circuits
  • Compatible with Analog or I2C Soil Moisture Sensors
  • Plug and Play flow sensor connection
  • LEDs to indicate activated channels
  • Dimensions 90 × 50 × 20 mm
  • Weight 40 g

Package contents

  • 1x Raspberry Pi Pico Irrigation Board

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