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ESP-12F ESP8266 Serial Port WIFI Industry Milestone Wireless Module -57883
product detail
ESP8266 WIFI Wireless Relay Module AC DC Power Supply Single Relay ESP 12F Development Board Module Remote Control Smart Home
The ESP8266 single-channel relay development board is equipped with an ESP-1 2F WIFI module, all I/O ports are exported, and supports various power supply methods such as AC90-250V/DC7-12V/USB 5V. Suitable for ESP8266 secondary development and learning, smart home wireless control and other occasions.
1. Onboard 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. Onboard AC-DC power supply module, power supply mode supports AC90-250V/DC7-1 2V/USB5V
4. Onboard WiFi module RST reset button
5. ESP-12F supports the use of development tools such as Eclipse
6. Onboard 1 5V relay, output switch signal, suitable for controlling the working voltage
Load within AC 250V/DC 30V
7. Onboard power indicator, programmable LED and relay indicator
1.VCC, GND: DC 8-80V power supply
2.MICPO USB: DC 5V USB power supply
Note: DC8-80V/DC5V USB/ pin header 5V can choose one of the three power supply methods. 3.6X6MM button: ESP8266 reset button
4.UART program download 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. After the download is completed, disconnect the IO0 and GND connection
5. GPIO pin header leads to the port
6. Relay output
NC: Normally closed, the relay is short-connected with COM before it is closed, and it is suspended after it is closed
COM: public end;
NO: Normally open end, the relay is suspended before being closed, and shorted to COM after being closed.
7. Power indicator LED
8. Programmable LED: use GPO16 control;
9. Relay indicator LED: lights up when it is closed.
GPIO lead port introduction:
1. GND: power ground
2. Relay: Relay drive port, IO5 drive is used by default. If you want to use other IO to drive the relay, you can remove R14 and then connect the I/O of the drive relay to this Relay pin
3.IO2: GPIO2: UARTI-TXD
4.IO4: GPIO4
5.RX: UARTO-RXD: GPIO3
6.3V3: 3.3V power supply
7. SCLK: clock
8.IO15: GPIO15: MTDO; HSPICS; UARTO-RTS
9.IO0: GPIO0
10.IO5: GPIO5
11.TX: UARTO-TXD; GPIO1
12.5V: 5V power supply
13.IO10: GPIO10
14.MISO: Slave output and host input
15.IO13: GPIO13; HSPI-MOSI; UARTO-CTS
16.1IO14: GPIO14; HSPI-CLK
17. ADC: A/D conversion result. Input voltage range: 0~1V, value range: 0~1024
18.3V3: 3.3V power supply
19.MOSI: Host output and slave input
20.IO9: GPIO9
21. CSO: Chip selection
22.IO12: GPIO12; HSPI-MISO
23.IO16: GPIO16
24.GND: power ground
ESP-12F (ESP-12E upgrade)