4 Relay Module Arduino Pdf

October 30 2015 at 6 18 am 4.

4 relay module arduino pdf.

4 channel 5v optical isolated relay module this is a low level 5v 4 channel relay interface board and each channel needs a 15 20ma driver current. Introducing the relay module. It can be used to control various appliances and equipment with large current. The arduino can be programmed to turn on the 4 channel relay module when a certain event occurs for example when the temperature of a thermistor gets higher than 30 c.

The actual figure is shown below. Working status indicator lights are conducive to the safe use. Relay output maximum contact is ac250v 10a and dc30v 10a. Arduino relay circuit and arduino relay code.

Almost any sensor can be used to trigger the relay to turn on or off. 4 channel relay interface board which can be controlled directly by a wide range of microcontrollers such as arduino. Upload the sketch 4 channel relay demo to the arduino uno or atmega2560 board. Standard interface can be directly connected with microcontrollers.

More information and instructions can be found on my blog. This relay module is 5v active low. Hi james im currently working on the same project using arduino bluetooth module and relay board to turn off and lights using smart phone i need some assistance in this i will appreciate. A relay is an electrically operated switch that can be turned on or off letting the current go through or not and can be controlled with low voltages like the 5v provided by the arduino pins.

Or when the resistance of a photoresistor drops below 400 ohms. Here s the holy grail of iot. Control the 4 channel relay module to on or off website. Controlling a relay module with the arduino is as simple as controlling any other output as we ll see later on.

Im sorry if im posting this thread in the wrong place this is my first post and you can tell i am a noob obviously. Then you can see the led cycle between on and off. I have no idea how to use it and i dont know where things go example. In this video we ll learn how to use a sainsmart 4 channel 5v relay module with an arduino.

4 channel relay demo name 4 channel relay description. Vcc pin is connected to the 5v power supply gnd. Microcontroller any compatible arduino 5v isolation relay module m m pin connectors f f pin connectors breadboard usb cable 1. It is equipped with highcurrent relays that work under ac250v 10a or dc30v 10a.