Arduino Primo A000135 First Arduino board featuring a Nordic nRF52 processor with WiFi<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>STM32F103 microcontroller + nRF52832 (BLE， NFC) + ESP8266 (WiFi)</li><li>64MHz ceramic resonator</li><li>14 digital input/output pins (of which 12 can be used as PWM outputs). 6 analog inputs</li><li>Battery Charger， Infrared receiver and transmitter， NFC antenna， BLE interface</li><li>Arduino Primo can be connected to a computer using a micro-USB cable</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51-2y7xYEsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51QwrDum28L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31ZITTD3I1L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21tV6a1bmkL.jpg" noproxy>