LilyPad Arduino - LilyPad Development Main Board Arduino USB ATmega32u4 (replaces/upgrade for the ATmega328P) - The silver dollar sized Arduino designed for e-textile and wearable projects!<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> LilyPad USB ATmega32U4 Board Module Replace atmega328p - ATmega32U4 attaches directly to your computer </span></li><li><span class="a-list-item"> The LilyPad Arduino USB is a microcontroller board based on the ATmega32u4. It has 9 digital input/output pins (of which 4 can be used as PWM outputs and 4 as analog inputs)， an 8 MHz resonator， a micro USB connection， a JST connector for a 3.7V LiPo battery， and a reset button. </span></li><li><span class="a-list-item"> It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a battery to get started. </span></li><li><span class="a-list-item"> Runs Arduino sketches， plug a USB cable into the LilyPad， load and go! Silver Dollar sized (53mm diameter x .8mm thick) ultra thin Arduino Processor designed for sewing sensors into clothing and textiles </span></li><li><span class="a-list-item"> 5 piece Multi-Pack available， search for ASIN B01J82BAKY </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/514ZQz8JQ2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/519V1%2BiGFuL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41t6R8tAjLL.jpg" noproxy>