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D1 R2 WiFi ESP8266 Development Board for UNO IDE Programming

D1 R2 WiFi ESP8266 Development Board for UNO IDE Programming

Regular price $4.99 USD
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The D1 R2 WiFi Development Board

Discover the D1 R2, a compact and versatile mini WiFi board powered by the ESP-8266EX chip. Perfect for your electronics and IoT projects.

Key Features:

  • Versatile Digital I/O: 11 digital input/output pins with full support for interrupt, PWM, I2C, and one-wire (except D0).
  • Analog Input: 1 analog input pin with a maximum input of 3.3V.
  • Connectivity: Comes with a Micro USB connection for easy interfacing.
  • Power Options: Features a power jack supporting 9-24V input.
  • Compatibility: Works seamlessly with NodeMCU for robust project development.

Technical Specifications:

  • Microcontroller: ESP-8266EX
  • Operating Voltage: 3.3V
  • Digital I/O Pins: 11
  • Analog Input Pins: 1
  • Clock Speed: 80MHz/160MHz
  • Flash Memory: 4M bytes
  • Dimensions: 68.6mm x 53.4mm
  • Weight: 25g

Pin Mapping:

Pin Function ESP-8266 Pin
TX TXD TXD
RX RXD RXD
A0 Analog input, max 3.3V A0
D0 IO GPIO16
D1 IO, SCL GPIO5
D2 IO, SDA GPIO4
D3 IO, Pull-up GPIO0
D4 IO, Pull-up, BUILTIN_LED GPIO2
D5 IO, SCK GPIO14
D6 IO, MISO GPIO12
D7 IO, MOSI GPIO13
D8 IO, Pull-down, SS GPIO15
G Ground GND
5V 5V -
3V3 3.3V 3.3V
RST Reset RST

Note: All IO pins support interrupt, PWM, I2C, and one-wire, except for D0.

Programming:

Easily program the D1 R2 using its Micro USB for automatic programming or opt for wireless programming using OTA (Over The Air).

Warnings:

  • All IO operations run at 3.3V. Ensure compatibility with your components.

Package Includes:

  • 1 x D1 R2 WiFi ESP8266 Development Board
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