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Thing - Dev Board - Wi-Fi module ESP8266 - SparkFun WRL-13804

Index: SPF-09145 EAN: 5904422312572

Wi-fi module, based on ESP8266. On board are goldpins soldered with board, 11 GPIO ports with support for I2C and SPI. An additional advantage is the built-in voltage converter on the lines of the UART interface. Thanks to USB converter, you only have to download the Arduino software and use IoT.

Thing - Dev Board - Wi-Fi module ESP8266 - SparkFun WRL-13804
€20.50
€16.67 tax excl.
Unavailable
Discontinued product
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Manufacturer: SparkFun

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The product has been discontinued. Check other products in category.

Description

Wi-fi module, based on ESP8266. On board are goldpins soldered with board, 11 GPIO ports with support for I2C and SPI. An additional advantage is the built-in voltage converter on the lines of the UART interface. Thanks to USB converter, you only have to download the Arduino software and use IoT.

 

The product is compatible with Arduino

In GitHub, you can findthe Arduino library

 

Thanks to the voltage regulator integratedon the lines of UART communication interface (RX, TX) and the RESET, the user needs no additional systems to connect the module with Arduino.

ESP8266 module works with a maximum voltage of 3.6 V, if the project requires a larger voltage, near the USB connector, is a place for pins, to which can be soldered, for example, a 2-pin JST connector for theLi-Pol battery charger. Pins support voltages from 3.3 V to 6 V.

Pins

The system has soldered goldpin connectors - 2.54 mm pitch. Distribution of the pins is presented in the table below.

Interfaces

Pin Description
GND The mass of the system.
3V3 Voltage of 3.3 V.
2 2 GPIO, SDA - it can be used as GPIO 2 or I2C communications of data pin.
14

14 GPIO, SCL, SCLK - it can be used as GPIO 14, clock pin of I2C communication or SCLK.

RST Active low reset of output. Board, on this pin, has a built-in resistor 10 kΩ.
TX GPIO 7, TX - output data.
RX GPIO 8, RX - data output.
5V Powered USB, if connected, the pin will supply 4.8 V approx.
NC

Not connected.

GND

The ground of the system.

Connectors of input/output

Pin Description
GND The ground of the system.
VIN Connected to the 5 VUSB port for. It may be used as the input of the supply voltage to the 3.3 V regulator.
5 GPIO 5 - the LED on the board.
0

GPIO 0.

4 GPIO 4.
13 GPIO 12, MOSI -output datapin of the SPI communication.
12 GPIO 12, MISO - output data pin of the SPI communication.
16 GPIO 16, XPD - it can be used to wake ESP8266from deep sleep .
ADC

A0 - analog input with maximum voltage of 1 V.

15

GPIO 15.

Specification

  • Supply voltage: 3.3 V
  • The module is based on ESP8266
  • Working voltage of pins: 3.3 V
  • The number of GPIO  pins: 11
  • Service of UART, I2C and SPI interfaces
  • Output power: +19.5 dBm 802.11 b
  • The TCP/IP Protocol
  • 1 analog input supports the voltage up to 1.0 V
  • Soldered goldpin connectors
  • Pin pitch: 2.54 mm

Voltage to 3.3 V
Voltage from 3.3 V
Voltage nominal 3.3 V
Voltage output from 3.3 V
Output voltage to 3.3 V
Nominal output voltage 3.3 V
UC - Microcontroller ESP-8266
UC - core 1. Single Core
UC - I2C yes
UC - UART yes
UC - SPI interface yes
Package width 5 cm
Package height 1 cm
Package depth 5 cm
Package weight 0.005 kg

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