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ESP8266 24V 16 Channel Wifi Relay Module
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ESP8266 24V 16 Channel Wifi Relay Module
Controlled by two 74HC595, which allows 16 onboard relays to be controlled via 4 GPIOs, hence corresponding to turn the relay on and off 595 control program required.
ESP8266 secondary development learning, smart home wireless control, intelligent control, etc.
The motherboard does not have a USB port, so you will need an FTDI adapter. You can connect it to the Programming Interface pins.
Usage
- Programming Interface: GND, RX, TX, 3.3V of ESP8266 are respectively connected to GND, TX, RX, 3.3V of external TTL serial port module, when downloading, I/O should be connected to GND and and then after downloading IO and GND need to be disconnected.
- Relay Output:
NC: The normally closed end shorts to COM before the relay activates and cuts after activation.
COM: Common terminal.
NO: Normally open end, relay is closed before activation and shorts to COM after activation.
Technical Specifications
- Built-in mature and stable esp-12f WiFi module, large capacity 4mb flash
- WiFi module The I/O port and UART program download port are all brought out to facilitate secondary development
- Power supply mode supports DC 24V
- RST reset button and a programmable button for the onboard WiFi module
- Esp-12f supports the use of Eclipse / Arduino LDE and other development tools and provides reference programs under the Arduino development environment
- 16 channels 24 V/ 10A relay
- One module with onboard power indicator, relay indicator and LED
- Two onboard 74HC595 control the relay switch.
- Board size: 165 * 90mm
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