The development boardfeatures WiFi-SoCESP8266 and is made forfast Internet-of-Things (IoT) prototyping. Itis flashed with the latestfirmware versionand can be set up and programmed right awaywiththe onboard micro USBconnection. With only a fewlines of code,the NodeMCUDev Kit connects to yourlocal networkand readyfor control by other network memberslikecomputers and smartphones.

The d1 mini is an ESP8266 development board that is compact, versatile and very easyto use with the Arduino IDE. It supports natively by the Expressive SDK.

Specifications:

• Microcontroller: ESP-8266EX
• 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 (3.2V max input)
• Flash Memory: 4MB
• On-Board Switching Power Supply
• Output: 5V
• Board Dimensions: 34.2mm x 25.6mm / Long x Wide
• Weight: 10g

Features:

• Use BRT (Bias Resistor Transistor)
• Easier into flash mode.
• 30% increase in radiating area
• Good stability.
• Version : V1.0
• A convenient Micro USB connection
• CH340 USB Serial Converter and Programming Control Electronics
• Compatible with Arduino
• Compatible with NodeMCU
• On Board 3.3V Regulator
• Side Mount RESET button

Note 1: All I/O pins have interrupt, PWM, I2C, and one-wire capability, except for D0. 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, such as our4-channelor8-channel logic-level converter modules