{"title":"Adafruit Proto Under Plate PiCowBell for Pico","handle":"adafruit-proto-under-plate-picowbell-for-pico-ada5905","url":"/products/adafruit-proto-under-plate-picowbell-for-pico-ada5905","description":"The Adafruit Proto Under Plate PiCowbell is a single-slot prototyping base for the Raspberry Pi Pico or Pico W. It provides a reset button, a STEMMA QT / Qwiic connector, a prototyping grid, and double-row socket headers — all with no soldering required when used with a Pico H or Pico WH.\n\nThe double-row sockets give you an extra row of pins alongside each Pico pin, so you can poke jumper wires directly in without a breadboard. The hollow socket design also allows plug-through from the back using Pico Stacking Headers. All pins are clearly labelled on the silkscreen.\n\nKey Features\n\n\n2×20 Double-Row Socket Headers – Pre-soldered; plug in your Pico with an extra row of sockets per pin for easy wire connections\n\nReset Button – Right-angle button at the board edge for quick restarts\n\nSTEMMA QT / Qwiic Connector – Right-angle JST SH for I2C on GPIO 4 (SDA) and GPIO 5 (SCL), with 4 extra breakout holes for re-assignment\n\nPrototyping Area – 3-hole connected strips in the centre (traces cuttable); duplicate hole pads next to every Pico pin for solder-jumpering\n\nPower Rails – Dedicated 3.3V strip and ground strip near the reset button; ground pads marked with white silkscreen\n\n4 Mounting Holes – For attachment to an enclosure or underplate\n\nGold-Plated Pads – For reliable soldering\n\nHollow Socket Headers – Connect through the back with Pico Stacking Headers if needed\n\n\nAlso Consider\n\n\nProto Doubler PiCowbell – Two-slot version with LiPo charging for Pico + one PiCowbell accessory\n\nProto Tripler PiCowbell – Three-slot version with LiPo charging, EYESPI, and NeoPixel\n\n\n\nTip: No I2C pull-up resistors are included, but most STEMMA QT / Qwiic breakouts have them built in.\n\n\nIdeal For\n\nSolder-free Pico prototyping with easy pin access\nAdding I2C sensors and breakouts via STEMMA QT\nQuick breadboard-free builds and one-off projects\nBase plate for PiCowbell Doubler and Tripler setups\n\n\nPackage Contents\n\n1× Adafruit Proto Under Plate PiCowbell (assembled with double-row socket headers, reset button, and STEMMA QT connector)\n\n\n\nNote: Raspberry Pi Pico is sold separately. Use a Pico H or Pico WH for a fully solder-free setup.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":1129,"title":"Default Title","sku":"AF-5905","mpn":"ADA5905","price":8.32,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}