Microcontroller: ESP8266EX
Operating Voltage: 3.3V
Digital I/O Pins: 11 (all I/O pins have interrupt/pwm/I2C/one-wire capability, except for D0)
Analog Input Pins: 1
Flash Memory: 4MB
On-Board Switching Power Supply:
Input Voltage Range: 9V to 12V
Output: 5V at 1A Max
Board Dimensions: 68.6mm x 53.4mm (2.701" x 2.102") / Long x Wide
Weight: 21.8g (0.769oz)
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