Grow Moisture Sensors (pack of 3)

A trio of Grow soil moisture sensors, for use with Grow HAT Mini or other devices.

These capacitive moisture sensors work using Pulse-Frequency Modulation (there's more info on that in Pimoroni's Grow tutorial). They're a lot less vulnerable to corrosion over time than old school resistive sensors, as there are no exposed electrodes. There's a handy indicator line to show you how far they can be pushed into the soil, and they even have a little area so you can label them with plant names.

It's possible to use Grow moisture sensors on their own with non-Raspberry Pi devices (like Arduino), as long as they're capable of monitoring pulses on an IO pin in the range of ~2Hz up to ~30Hz accurately.

Moisture sensor specifications

• Capacitive moisture sensors with Pulse-Frequency Modulation output.
• Male JST SH 3P connectors (we have 35cm or 100cm cables in the shop)
• Pinout