The D1 Mini is a breadboard-compatible WiFi development board based on the ESP8266.
This board is compatible with the Arduino IDE and with NodeMCU.
All of the I/O pins have interrupt, PWM, I2C, and one-wire capability, except for pin D0.
The board comes with three different sets of header pins: long-pin female headers, standard-pin female headers, and male pin headers. You can solder the set you choose to your board. The long-pin female headers are our favorite since they allow you to plug the board into a breadboard while also having female headers available on top of the board.
The board includes an on-board USB Micro connector and USB to serial (UART) converter, making it easy to power and program the board by simply connecting it to your computer with a USB Micro cable.
We offer a board similar to this called the ESP8266 D1 R2 V2.1.0 WiFi Dev Board that is shaped like the common Arduino UNO footprint.
Note: The D1 Mini is a 3.3V device. If you connect it to 5V digital sensors or devices you may need a logic-level converter.
Features
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 MicroPython, Arduino, nodemcu
Pin Configuration
Pin
Function
ESP-8266 Pin
TX
TXD
TXD
RX
RXD
RXD
A0
Analog input, max 3.3V input
A0
D0
IO
GPIO16
D1
IO, SCL
GPIO5
D2
IO, SDA
GPIO4
D3
IO, 10k Pull-up
GPIO0
D4
IO, 10k Pull-up, BUILTIN_LED
GPIO2
D5
IO, SCK
GPIO14
D6
IO, MISO
GPIO12
D7
IO, MOSI
GPIO13
D8
IO, 10k Pull-down, SS
GPIO15
G
Ground
GND
5V
5V
–
3V3
3.3V
3.3V
RST
Reset
RST
Board Dimensions (not including pins)
Length
34.2 mm (1.35″)
Width
25.6 mm (1.01″)
Height
7 mm (0.28″)
Package includes:
1 x D1 mini
2 x Long female pin
2 x Short female pin
2 x Normal pin
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