Keyestudio ESP8266 WI-FI Development Board with USB Cable For Arduino-Based on ESP8266-12FWIFI /Support RTOS The keyestudio ESP8266 WiFi development board is based on the ESP8266-12WIFI module developed by Ai-Thinker. The ESP8266 processor integrated the industry-leading Tensilica L106 ultra-low power 32-bit micro MCU in a smaller package with 16-bit Lite mode. The main clock frequency supports 80 MHz and 160 MHz. It supports RTOS integrated with WiFi MAC/BB/RF/PA/LNA onboard and comes with a curved on-board antenna. This development boars is a standalone network controller which can add networking function to those existing devices. Specifications Ports: 11 I/O (4 of which can be used as PWM output) Digital I/O pins: 8 Analog input pins: 1 (A0) Operating voltage: 3.3V Input voltage: 7-12VDC I/O output current: 12 mA max. LED_BUILTIN: GPIO 14
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