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Development board

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DC8-80V power supply ESP8266 Single ESP826 relay dev board

SKU :LC-Relay-ESP12-1R-D8

Overview:

LC ESP826 Single way relay development board carry on ESP-12F WiFi module I/O port is fully extracted, support DC8-80V/USB 5V and other power supply methods. Supply Arduino development environment reference code, suitable for  ESP8266  secondary develop learning, smart home wireless control and other occasions.

Features
1.onboard mature and stable ESP-12F WiFi module ,High capacity4M Byte Flash.
2. I/O port of the WiFi module and the download port of the UART program are all taken out to facilitate secondary development.
3.Support DC8-80V/USB5V/ Pin header power supply.
4.onboard WiFi module RST reset button
5.ESP-12F support for development tools such as Eclipse/Arduino IDE,provide reference programs in the Arduino development environment
6.Onboard 1 channel 5V relay,output switch signal ,Suitable for controlling and controlling the working voltage to be within the load of AC 250V/DC30V.
7.Onboard power indicator ,1 programmable LED and relay indicator

Hardware introduction and description
1.board  size : 59.2*48.6mm
Weight :26g

introduce of interface

 

1,VCC,GND: DC8-80V power supply
2,Micro USB:DC5V USB power supply
Mark: DC8-80V/DC5V USB/ Pin header 5V Choose one of the three power supply methods.
3. 6X6mm press button, ESP8266 reset button
4. UART Program download port: ESP8266 GND,RX,TX,5V separately connect external TTL Serial module GND,TX,RX,5V, IO0 need with GND connect when download, disconnect the connection between IO0 and GND After the download is complete.
5.GPIO Pinout port
6. relay output end:
NC: Normally close,the NC disconnect with COM when relay closed and connect with COM when relay released.
COM: Common end  
NO: Normally open end,the NO disconnect with COM when relay released and connect with COM when relay closed.
7.Power indicator LED
8.programmable LED,using GPIO16 control .
9.Relay indicator LED.when connect will light .

GPIO Pinout port introduce 

NO. Name Function NO. Name Function
1 GND Power ground 13 IO10 GPIO10
2 Relay Relay drive port , using IO5 drive by default. If need use other I/O drive relay,  please remove R14, then use the I/O connected to this relay pin. 14 MISO Slave output master input
 
3 IO2 GPIO2; UART1_TXD 15 IO13 GPIO13; HSPI_MOSI; UART0_CTS
4 IO4 GPIO4 16 IO14 GPIO14; HSPI_CLK
5 RX UART0_RXD; GPIO3 17 ADC A/D Conversion result. Input voltage range 0~1V, ranging from 0 to 1024
6 3V3 3.3V power 18 3V3 3.3V power
7 SCLK CLOCK 19 MOSI Master output Slave input
8 IO15 GPIO15; MTDO; HSPICS; UART0_RTS 20 IO9 GPIO9
9 IO0 GPIO0 21 CS0 chip select
10 IO5 GPIO5 22 IO12 GPIO12; HSPI_MISO
11 TX UART0_TXD; GPIO1 23 IO16 GPIO16
12 5V 5Vpower 24 GND Power ground

Arduino development environment building

ESP8266 support Eclipse/Arduino IDE development tools, use Arduino will easy,Arduino development environment build way as below:
1. Install Arduino IDE 1.8.9 or latest version
2. Open Arduino IDE ,Click on File - Preferences in the menu bar,Click on Add URL in the "Additional Development Board Manager URL" after entering the preferences:
http://arduino.esp8266.com/stable/package_esp8266com_index.json,

3.Click menu’s tool --development board -development manager, search for "ESP8266" to install Arduino support package for ESP8266 2.5.2 or the latest version

Program download:
1. Use the jumper cap to connect the IO0 and GND pins, prepare one TTL serial module(such as :FT232) plug into computer USB, serial module and development board connecting way as below:

TTL serial module ESP8266 development board
GND GND
TX RX
RX TX
5V 5V

2.click menu bar tool--development board ,choose development board for ESPino (ESP-12 module)
3. open need download program,click menu bar’s tool---interface Choose the correct port number
4.after click upload program will automatically compile and download to the development board,as below:
5. Finally cut IO0 with GND connect, the board can be powered up by pressing the power button again or by pressing the reset button.