Relay - Switching the relay (regular example)

This page contains a simple example with function documentation on how to control the 1 or multi channel regular relay board.

Code example for 1 channel

// Include our CH_Relay library
#include "Relays-SOLDERED.h"

#define RELAY_PIN 5

CH_Relay Relay(RELAY_PIN); 

void setup()
{
    Relay.begin(); 
}

void loop()
{
    Relay.relayControl(CHANNEL1, HIGH);
    delay(1500);

    Relay.relayControl(CHANNEL1, LOW);
    delay(1500);
}

CH_Relay Relay()

Creates relay object, number of channels depends on how many parameters are given to the constructor (there can be 1,2,4 arguments)

Returns value: NaN

Function parameters:

Type	Name	Description
`uint16_t`	`pin1`	digital pin number for controlling relay on channel 1
`uint16_t`	`pin2`	digital pin number for controlling relay on channel 2
`uint16_t`	`pin3`	digital pin number for controlling relay on channel 3
`uint16_t`	`pin4`	digital pin number for controlling relay on channel 4

Relay.begin()

Initializes relay library

Returns value: none

Relay.relayControl()

Sets specified relay in high or low state

Returns value: none

Function parameters:

Type	Name	Description
`uint16_t`	`channel`	Channel selection
`uint16_t`	`mode`	Set relay in HIGH (on) or LOW (off) mode

Full example

Try all of the above mentioned functions in this full example.

RelayControl1CHNative.ino

Example file to show how to control 1 channel relay board.

Code example for 1 channel​