ESPea is a new Wi-Fi development board from AprilBrother technologies. It uses the ESP8266EX chipset as the main micro-controller and supports the Arduino environment. At the ESPea’s heart is an ESP8266 WiFi microcontroller clocked at 80 MHz and at 3.3V logic. This microcontroller contains a Tensilica chip core as well as a full WiFi stack. You can program the microcontroller using the Arduino IDE for an easy-to-run Internet of Things core.