D1 mini V2.2.0 (Retired)

A mini wifi board with 4MB flash based on ESP-8266EX.

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  • 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
  • 1 analog input(3.2V max input)
  • a Micro USB connection
  • Compatible with Arduino
  • Compatible with nodemcu
MicrocontrollerESP-8266EX
Operating Voltage3.3V
Digital I/O Pins11
Analog Input Pins1(Max input: 3.2V)
Clock Speed80MHz/160MHz
Flash4M bytes
Length34.2mm
Width25.6mm
Weight10g
PinFunctionESP-8266 Pin
TXTXDTXD
RXRXDRXD
A0Analog input, max 3.3V inputA0
D0IOGPIO16
D1IO, SCLGPIO5
D2IO, SDAGPIO4
D3IO, 10k Pull-upGPIO0
D4IO, 10k Pull-up, BUILTIN_LEDGPIO2
D5IO, SCKGPIO14
D6IO, MISOGPIO12
D7IO, MOSIGPIO13
D8IO, 10k Pull-down, SSGPIO15
GGroundGND
5V5V-
3V33.3V3.3V
RSTResetRST