Description

DC 5V 7- 80V 30A ESP8266 WIFI 1/2 Channel Relay Module ESP-12F Development Board 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 DC7-80/5V 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 Shipping Feedback Contact us Return Policy Shipping Domestic We believe you need to get your purchases as quick as possible. As a general rule your item will be shipped within 24 hours of you purchasing it. 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