{"product_id":"sparkfun-dev-18158","title":"SparkFun RedBoard Plus","description":"\u003cp\u003e\u003cstrong\u003eAffiliate disclosure:\u003c\/strong\u003e Everything About Robotics may earn a commission from qualifying purchases through this link. SparkFun handles checkout, fulfillment and returns.\u003c\/p\u003e\n\u003cp\u003eThe RedBoard Plus suits learners and builders who want an Arduino Uno-style workflow with a USB-C connection and convenient access to Qwiic devices. Its ATmega328P controller runs with the Uno bootloader, while a physical switch selects 3.3 V or 5 V I\/O operation. The board also exposes additional analog connections and retains an R3-compatible shield layout. Use it as a controller for a planned circuit or robotics project, pairing the board with sensors, a suitable motor driver and a power supply selected for that build.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMicrocontroller\u003c\/th\u003e\n\u003ctd\u003eATmega328P; Optiboot Uno bootloader\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eClock and flash\u003c\/th\u003e\n\u003ctd\u003e16 MHz; 32 kB flash\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUSB\u003c\/th\u003e\n\u003ctd\u003eUSB-C; CH340G serial converter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eI\/O\u003c\/th\u003e\n\u003ctd\u003e22 digital I\/O; six PWM outputs; eight analog inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eExpansion\u003c\/th\u003e\n\u003ctd\u003eOne Qwiic connector; R3-compatible shield layout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePower input\u003c\/th\u003e\n\u003ctd\u003eUSB-C 5 V or barrel input 7–15 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eSupplier price checked October 23, 2026:\u003c\/strong\u003e US$29.50; listed in stock at SparkFun. Price and availability may change. SparkFun confirms taxes, shipping, delivery and returns at its checkout.\u003c\/p\u003e\n\u003ch2\u003eBefore you buy\u003c\/h2\u003e\n\u003cp\u003eSet the I\/O voltage for the attached hardware. This is a development board, not a complete robot or starter kit.\u003c\/p\u003e\n\u003cp\u003eCheck current price, availability, taxes, shipping and returns at SparkFun before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.sparkfun.com\/sparkfun-redboard-plus.html?affiliate_code=hDF5bFzOpu\u0026amp;referring_service=link\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;min-height:44px;padding:12px 18px;box-sizing:border-box\"\u003eBuy at SparkFun\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.sparkfun.com\/sparkfun-redboard-plus.html\" rel=\"noopener\" target=\"_blank\"\u003eOfficial product specifications and documentation\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003csmall\u003eProduct photograph: SparkFun Electronics, used with permission.\u003c\/small\u003e\u003c\/p\u003e","brand":"SparkFun","offers":[{"title":"Default Title","offer_id":67828350517437,"sku":"DEV-18158","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7281\/4525\/files\/18158-SparkFun_RedBoard_Plus-01.jpg?v=1792324385","url":"https:\/\/shop.everythingaboutrobotics.com\/products\/sparkfun-dev-18158","provider":"Everything About Robotics","version":"1.0","type":"link"}