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<main><figure><img alt="The Playground Express" src="../media/diary/644.jpg"><figcaption>The Playground Express<span class="right">13T02</span></figcaption></figure>
<h2>The Playground is a flexible experimental micro-controller from Adafruit.</h2>

<p>The Playground Express is a ATSAMD21 ARM Cortex M0 Processor, running at 3.3V and 48MHz, the USB port can act as seri