{"product_id":"adafruit-simple-soil-moisture-sensor-for-micro-bit-and-more","title":"Adafruit Simple Soil Moisture Sensor - For micro:bit, and more","description":"\u003cp\u003ePerfect for educational uses, the \u003cstrong\u003eAdafruit Simple Soil Moisture Sensor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis low cost, and easy to use.\u003c\/p\u003e\n\u003cp\u003eThis is a simple \u003cem\u003eresistive\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003estyle moisture sensor, where there's two prongs and the sensor measures the conductivity between the two. Adafruit gold-plated the prongs to reduce risk of oxidation - if you see build-up on the prongs, clean them off with a dish-scrubber to keep the sensor going.\u003c\/p\u003e\n\u003cp\u003eWhile not as advanced as a capacitive or frequency-based sensor, these are really easy to use! We're stocking this sensor for folks who want to use it with a micro:bit or Arduino or other board with an analog input. It won't work with a Raspberry Pi because those don't have analog inputs -\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener\" href=\"\/en-us\/products\/adafruit-stemma-soil-sensor-i2c-capacitive-moisture-sensor\" target=\"_blank\"\u003efor that use a capacitive sensor\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eGetting started is super easy!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e When using with a micro:bit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eyou'll need some\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener\" href=\"\/en-us\/products\/crocodile-leads-set-of-10\" target=\"_blank\"\u003esmall alligator clips\u003c\/a\u003e.  Connect the GND pad from the 'bit to the GND pad on the sensor. Connect the 3V pad to the 3V pad. Then connect the 0 pad on the 'bit to the OUT pad on the sensor (you can also use 1 or 2 pad on the 'bit). Then, on the micro:bit read the analog value. When soil is dry, the reading will be under 100. As the soil gets wetter it will rise to 1000. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn an Arduino,\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econnect 3V to the 3V output pin (or 5V if there's no 3V pin) and GND to ground. You can either use\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.adafruit.com\/product\/3255\"\u003ealligator-clips-to-pins\u003c\/a\u003e or a\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener\" href=\"\/en-us\/products\/pimoroni-pico-debug-cable\" target=\"_blank\"\u003eJST SH to 3-pin cable\u003c\/a\u003e. Then connect the OUT to A0 or another analog input. When you use analogRead() you'll see dry soil at \u0026lt; 100 and wet soil \u0026gt; 600.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEither way, no soldering is required!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note: This is just the sensor, you'll also need alligator clips or a JST-SH cable to connect to it\u003c\/strong\u003e\u003cstrong\u003e!\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cp\u003e\u003cimg height=\"80\" width=\"145\" alt=\"RoHS 2 2011 65 EU Compliant\" src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2011_65_EU.svg\"\u003e \u003cimg height=\"80\" width=\"145\" alt=\"RoHS 2 2015 863 EU Compliant\" src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2015_863_EU.svg\"\u003e\u003c\/p\u003e\n\u003ch2\u003eLearn\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-simple-soil-moisture-sensor\"\u003ePrimary Guide: Adafruit Simple Soil Moisture Sensor\u003c\/a\u003e Measure soil moisture resistively\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/learn.adafruit.com\/products\/6362\/guides\" target=\"_blank\"\u003eSee All Guides\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":55998267261307,"sku":"ADA6362","price":2.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/6362-00.jpg?v=1766574826","url":"https:\/\/shop.pimoroni.com\/en-us\/products\/adafruit-simple-soil-moisture-sensor-for-micro-bit-and-more","provider":"Pimoroni Ltd","version":"1.0","type":"link"}