Relay - Switching the relay (Qwiic example)

This page contains a simple example with function documentation on how to control the 1 channel relay board using Qwiic conncetion.

Code example for 1 channel

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

#define RELAY_ADDRESS 0x32

CH_Relay Relay;

void setup()
{
    Relay.begin(RELAY_ADDRESS); // Set address on relay hardware switch using provided addresses and here (0x30 - 0x37)
                                // If there are more sensors/breakout boards are connected with same address,
                                // it is needed to change address in order to have normal I2C communication.
                                // Every end device should have unique address on same bus
}

void loop()
{
    // Turn on relay
    Relay.relayControl(CHANNEL1, HIGH);
    delay(1500);

    // Turn off relay
    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: none

Relay.begin()

Initializes relay object for I2C communication

Returns value: none

Function parameters:

Type	Name	Description
uint16_t	relay_adderss	Board address for I2C communicaion

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

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Full example

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

RelayControl1CHEasyC.ino

Example file to show how to control 1 channel relay board using Qwiic comunication.