SparkFun
AgXRP Pump & Soil Moisture Sensor Expansion Pack (Beta)
· MPN: KIT-30716
Add another automated planting zone to your AgXRP setup with this expansion for the AgXRP Starter Kit. It lets students and educators add a second pump and s...
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Add another automated planting zone to your AgXRP setup with this expansion for the AgXRP Starter Kit. It lets students and educators add a second pump and soil moisture sensor, so they can water a second plant independently and compare soil conditions or watering schedules side by side.
The pack includes the hardware needed to build an additional peristaltic pump and monitor a second plant bed. It is designed to connect to the XRP Controller in the main kit using its motor drivers and daisy-chainable Qwiic connectors.
- Additional pump hardware: hobby motor with encoder, deep-groove ball bearings, latex tubing, and an AgXRP single-pump enclosure frame
- Soil monitoring: one extra SparkFun Qwiic Soil Moisture Sensor
- Connection: 500 mm flexible Qwiic cable
You can add up to three of these expansion packs to a base AgXRP Starter Kit, allowing up to four independent planting zones in total. As a beta release, it is well suited to classroom experiments, STEM programs, and pilot agricultural automation projects.
Jargon buster
Plain-language definitions for the technical terms used above.
- encoder
- An encoder is a sensor that converts the rotation or position of a shaft, knob or dial into electrical signals, reporting movement as incremental steps and direction, or as an absolute position. It is used to track how far something has turned, which matters for precise positioning, speed control, repeatable movement, or using a rotary knob as an input.
- peristaltic pump
- A peristaltic pump moves liquid by squeezing flexible tubing in a rolling motion, so the liquid only ever touches the inside of the tube. This matters when dosing small, repeatable amounts of fluid or pumping liquids that must stay uncontaminated, because the pump's moving parts never contact the liquid.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
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