Cactus Micro arduino compatible board plus WIFI chip esp8266

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- Built-in ESP8266 WIFI module (Optional)
- ATmega32U4 running at 3.3V/8MHz
- Supported under Arduino IDE v1.0.6
- On-Board micro-USB connector for programming
- 4 x 10-bit ADC pins
- 12 x Digital I/Os (5 are PWM capable)
- Rx and Tx Hardware Serial Connections