ESP8266 WIFI 1/2/4 Channel 30A Relay ESP-12F Development Board DC 5V 7V-80V

Description

Product Overview
ESP8266 WIFI 1/2/4 Channel 30A Relay ESP-12F Development Board DC 5V 7V-80V
Single channel DC7-80/5V
I. Overview
ESP8266 single-channel 30A relay development board is equipped with ESP-12F WiFi module, all I/O ports are led out, and it supports DC7-80V/5V power supply. Provide Arduino development environment reference code, suitable for ESP8266 secondary development learning, smart home wireless control and other occasions.
2. Features
1. On-board mature and stable ESP-12F WiFi module, large capacity 4M Byte Flash;
2. The I/O port and UART program download port of the WiFi module are all led out, which is convenient for secondary development;
3. The power supply mode supports DC7-80V/5V;
4. Onboard WiFi module RST reset button and a programmable button;
5. ESP-12F supports the use of development tools such as Eclipse/Arduino IDE, and provides reference programs under the Arduino development environment;
6. Onboard 1 way 5V/30A relay, output switch signal, suitable for controlling load within AC 250V/DC30V;
7. Onboard power indicator and relay indicator, ESP-12F comes with 1 programmable LED.
3. Hardware introduction and description
1. Board size: 78*47mm
Weight: 45g
3. Interface introduction
Programming port: ESP8266's GND, RX, TX, 5V are respectively connected to the GND, TX, RX, 5V of the external TTL serial port module. IO0 needs to be connected to GND when downloading, and then disconnect the connection between IO0 and GND after the download is complete;
Relay output:
NC: Normally closed, the relay is short-connected with COM before the pull-in, and hangs in the air after pull-in;
COM: public end;
NO: Normally open end, the relay is suspended before being closed, and shorted to COM after being closed.
4. Introduction to GPIO port
Serial number
name
Function Description
Serial number
name
Function Description
1
ADC
A/D conversion result. Input voltage range: 0～1V, value range: 0～1024
10
IO2
GPIO2; UART1_TXD
2
EN
Enable pin, pull up by default
11
IO15
GPIO15; MTDO; HSPI_CS; UART0_RTS
3
IO16
GPIO16
12
TXD
UART0_TXD; GPIO1
4
IO14
GPIO14; HSPI_CLK
13
RXD
UART0_RXD; GPIO3
5
IO12
GPIO12; HSPI_MISO
14
GND
Power ground
6
IO13
GPIO13; HSPI_MOSI; UART0_CTS
15
5V
5V power supply
7
IO5
GPIO5
16
3.3V
3.3V power supply
8
IO4
GPIO4
17
RY1
Relay drive port, you can use short-circuit cap and IO16 to short-circuit; if you want to use other I/O drive relay, you can use DuPont wire jumper
9
IO0
GPIO0
Dual channel DC7-28/5V
I. Overview
The ESP8266 dual 30A relay development board is equipped with ESP-12F WiFi module, all I/O ports are led out, and it supports DC7-28V/5V power supply. Provide Arduino development environment reference code, suitable for ESP8266 secondary development learning, smart home wireless control and other occasions.
2. Features
1. On-board mature and stable ESP-12F WiFi module, large capacity 4M Byte Flash;
2. The I/O port and UART program download port of the WiFi module are all led out, which is convenient for secondary development;
3. The power supply mode supports DC7-28V/5V;
4. Onboard WiFi module RST reset button and a programmable button;
5. ESP-12F supports the use of development tools such as Eclipse/Arduino IDE, and provides reference programs under the Arduino development environment;
6. Onboard 2 5V/30A relays, output switch signals, suitable for controlling loads whose working voltage is within AC 250V/DC30V;
7. On-board power indicator, relay indicator and 1 programmable LED.
3. Hardware introduction and description
Board size: 83*68mm
Weight: 85g
4.Interface introduction
Programming port: ESP8266's GND, RX, TX, 5V are respectively connected to the GND, TX, RX, 5V of the external TTL serial port module. IO0 needs to be connected to GND when downloading, and then disconnect the connection between IO0 and GND after the download is complete;
Relay output:
NC: Normally closed, the relay is short-connected with COM before the pull-in, and hangs in the air after pull-in;
COM: public end;
NO: Normally open end, the relay is suspended before being closed, and shorted to COM after being closed.
5. Introduction to GPIO port
Serial number
name
Function Description
Serial number
name
Function Description
1
ADC
A/D conversion result. Input voltage range: 0～1V, value range: 0～1024
10
IO2
GPIO2; UART1_TXD
2
EN
Enable pin, pull up by default
11
IO15
GPIO15; MTDO; HSPI_CS; UART0_RTS
3
IO16
GPIO16
12
TXD
UART0_TXD; GPIO1
4
IO14
GPIO14; HSPI_CLK
13
RXD
UART0_RXD; GPIO3
5
IO12
GPIO12; HSPI_MISO
14
GND
Power ground
6
IO13
GPIO13; HSPI_MOSI; UART0_CTS
15
5V
5V power supply
7
IO5
GPIO5
16
3.3V
3.3V power supply
8
IO4
GPIO4
17
RY1
The first relay drive port can be short-circuited with IO16 using a shorting cap; if you want to use other I/O drive relays, you can use DuPont wire jumpers
9
IO0
GPIO0
18
RY2
For the second relay drive port, you can use a shorting cap and IO14 to short; if you want to use other I/O drive relays, you can use DuPont wire jumpers
4 Channel DC7-28V/5V
Features:
The Esp8266 four-way 30A relay development board is equipped with an esp-12f WiFi module, the I / O ports are all led, and it supports dc7-28v / 5V power supply mode. It is suitable for esp8266 secondary development and learning, smart home wireless control and other occasions.
1. Mature and stable esp-12f WiFi module on board, large capacity 4m Byte Flash.
2. The WiFi module I / O port and UART program download port are all led,It is suitable for secondary development.
One
3. The power supply mode supports dc7-28v / 5V.
4. Integrated WiFi module RST Reset button and a programmable key.
5. Esp-12f supports the use of eclipse / Arduino LDE and other developers Provides the reference program in the Arduino development environment.
6. Onboard 5V / 30A 4-way relay, output switch signal, suitable for control.Control the load whose working voltage is Within AC 250V / DC 30V.
7. On-board power indicator, 1 programmable led and relay indicator.
8. Board size: 122.5x87mm
Weight: 160g
GND, Rx, TX and 5V of esp8266 record and write port are respectively connected with GND, TX, RX and 5V of external TTL serial port module.
When downloading, 00 needs to be connected with GND, and then disconnect 00 from GND after downloading.
NC relay output: normally closed end, the relay is shorted to com before closing and suspended after closing.
COM: public end. No: normal start, the relay is suspended before closing and will short to com after closing.
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