Alvin: Created page with "== Introduction == The Relay Module is a digital normally-open switch. Through it, you can control circuit of high voltage with low voltage, say 3V on the controller. There i..."

2016-12-13T02:21:43Z

Created page with "== Introduction == The Relay Module is a digital normally-open switch. Through it, you can control circuit of high voltage with low voltage, say 3V on the controller. There i..."

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== Introduction ==

The Relay Module is a digital normally-open switch. Through it, you can control circuit of high voltage with low voltage, say 3V on the controller. There is an indicator LED on the board, which will light up when the controlled terminals get closed. The peak voltage capability is 250V at 10 amps.The Module Operating Voltage 3.3V, max 3.6V .

[[File:RELAY D1.jpg|640px]]

[[File:RELAY D1 2.jpg|640px]]

[[File:RELAY D1 3.jpg|640px]]

[[File:RELAY D1 4.jpg|640px]]

== Wiring & Running ==

The Relay module is connected to the base shield J2:

Relay Signal --> LinkNode D1 G2

[[File:Relay D1 5.png|640px]]

[[File:Relay D1 6.png|640px]]

[[File:Relay D1 7.png|640px]]

== Simple Code ==

/*
LinkNode Relay-1Channel
the Relay will turn on for 0.5s and then turn off for 0.5s, and so on.
This example code is in the public domain.
*/

int RelayControlPin = 2;
void setup() {
// initialize the digital pin as an output.
pinMode(RelayControlPin, OUTPUT);
}

void loop() {
digitalWrite(RelayControlPin, HIGH); // set the relay on
delay(500); // wait for a second
digitalWrite(RelayControlPin, LOW); // set the relay off
delay(500); // wait for a second
}

== Datasheet ==

[https://s3.amazonaws.com/linksprite/LinkNode+D1+ESP8266+Sensor+Kit/SONGLE+RELAY+SRD-XXVDC.pdf SONGLE RELAY SRD-XXVDC.pdf]

LinkNode Relay 1Channel Module - Revision history

Alvin: Created page with "== Introduction == The Relay Module is a digital normally-open switch. Through it, you can control circuit of high voltage with low voltage, say 3V on the controller. There i..."