Relay WIFI IOT ESP8266 12V 4-channel

Specification:

Board size: 60 * 63mm

Onboard interface:

IN +, IN-: 5V input voltage;

5V, GND, TX, RX: UART serial port;

SWIM, PIN8, NRST: MCU download port reserved.

S1 button: change mode, standard mode is mode 1.

Button S2: Reset

LED D1 / D2 / D3 / D4 (red): Relay works LED, LED lights when relay is on.

LED D7 (red): mode indicator 1

LED D5 (blue): mode indicator 2

LED D6 (green): workshop indicator, exact details:

(1) If deleted, it will be set up or disconnected by the router.

(2) 0.5s fast blinking means the phone APP will set up a Wi-Fi account and password for ESP-01 module.

(3) 2S flashes slowly to complete the setup and wait to connect to the mobile phone via TCP.

(4) LED always lights successfully after TCP connection with mobile phone.

Connection for reserved two covers:

Generally, they need to be added downwards is RX to RX1, TX to TX1. Place it upwards if you are using it as a USB module.

COM1 COM2 COM3 COM4: common terminal;

NC1 NC2 NC3 NC4: Normally Closed.

NO1 NO2 NO3 NO4: normally open.

Relay control command (hexagonal format):

Relay 1 opening: A0 01 01 A2

Relay 1 close: A0 01 00 A1

Relay 2 opening: A0 02 01 A3

Relay 2 close: A0 02 00 A2

Relay 3 opening: A0 03 01 A4

Relay 3 close: A0 03 00 A3

Relay 4 open: A0 04 01 A5

Relay 4 close: A0 04 00 A4

Package content:

1 x 5V ESP8266 Four Channel Wi-Fi IOT Smart Home Relay for Mobile Phone with Remote Control.