{"product_id":"arduino-leonardo-with-headers-usb-connection-power-ac-to-dc-adapter-microcontroller-board-a000057","title":"Arduino Leonardo with Headers USB connection  power AC-to-DC adapter microcontroller board A000057","description":"\u003ch1\u003e\u003ca title=\"Leonardo with Headers A000057\" href=\"https:\/\/www.application-datasheet.com\/pdf\/arduino\/a000057.pdf\"\u003eLeonardo with Headers A000057\u003c\/a\u003e\u003c\/h1\u003e\n\u003cp\u003eThe Arduino Leonardo is a microcontroller board based on the ATmega32u4 (datasheet). It has 20 digital input\/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.\u003c\/p\u003e\n\u003cp\u003eThe Leonardo differs from all preceding boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Leonardo to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial \/ COM port. It also has other implications for the behavior of the board; these are detailed on the Getting started with the Arduino Leonardo.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0715\/8841\/3523\/files\/Pinout-Leonardo_latest.png\" alt=\"\" width=\"100%\" height=\"auto\"\u003e\u003c\/p\u003e","brand":"Arduino","offers":[{"title":"Default Title","offer_id":44649270411347,"sku":"CDA000057","price":23.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/8841\/3523\/files\/A000057__02046.1729209434.500.750__49126.jpg?v=1779483684","url":"https:\/\/platinummicro.com\/products\/arduino-leonardo-with-headers-usb-connection-power-ac-to-dc-adapter-microcontroller-board-a000057","provider":"Platinum Micro","version":"1.0","type":"link"}