WeMos D1 - ESP8266 based on Arduino®

Description

The WeMos D1 is a development board based on the ESP8266 with the Arduino UNO board format. This board is compatible with the Arduino IDE and with NodeMCU.

The D1 also features an on-board switching power supply which allows you to power the board from a supply of up to 24V. It provides 11 GPIO pins (which can be used as input, output, PWM, I2C, or one-wire — except D0) and 1 analog input.

Features

• 11 digital input/output pins, all with interrupt, PWM, I2C, and one-wire supported (except for D0)
• 1 analog input (3.2V max input)
• Micro USB connection
• Power jack, 9V power input
• Compatible with Arduino and NodeMCU

Specification

• Microcontroller: ESP-8266EX
• USB-Serial converter: CH340
• Operating voltage: 3.3V
• Number of digital I/O pins: 11
• Number of analog inputs: 1 (max. 3.2V)
• Clock frequency: 80MHz / 160MHz
• Flash memory: 4MB