Relays are an oldie but a goodie. They allow you to switch high current/voltage

loads using a digital output from something like the Arduino.

What would make a relay even better? How about controlling a relay over the

internet from anywhere in the world? Yea!

This process is made really simple using the Teleduino sketch for your ethernet

enabled Arduino. Haven't heard of Teleduino? That's cool, you may want to take a

look at Arduino Control via a Web Service with Teleduino

(http://www.instructables.com/id/Arduino-Control-via-a-Web-Service-with-

Teleduino/) to get yourself started.

This tutorial will guide you through the process of attaching a 5V relay to your

Arduino, and provide some example Teleduino API calls to:

(http://cdn.instructables.com/FQZ/343B/H1JU6KCF/FQZ343BH1JU6KCF.LARGE.jpg)

About This Instructable

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Define the pin mode of a pinTurn on the relayTurn off the relayToggle the relay

If you get stuck on any of the steps, or if you feel that there is a step that could be

explained better, please leave a comment so that we can improve things.

Let's get started!

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Step 1: Parts Needed and Circuit Diagram

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(http://cdn.instructables.com/FE6/9CXM/H1JU3LWZ/FE69CXMH1JU3LWZ.LARGE.jpg)

(/member/nathanknz/)Developer of the telecontrol andtelemonitoring system Teleduino, using theArduino platform.

Bio:

(/id/Arduino-Control-via-a-Web-Service-with-Teleduino)

(/id/Control-Servos-over-the-Internet-via-Arduino-with-)

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Make Comment

(/member/kareem1/)

3 months ago Reply (CTRQW83HRWNAW1S)

(/member/nathanknz/)

3 months ago Reply (CA4XLGYHS18B5WB)

Parts Needed

You need the following parts to complete this tutorial:Breadboard (optional, but makes prototyping much easier)5V Relay (the relay in the image has had legs added so that it can beconnected to a breadboard)1K Resistor1N4001 Diode2N2222 TransistorSome hookup wire

Circuit Diagram

Take a peak at the attached circuit diagram. It shows how the components needs to

be connected. You may need to look at the datasheet for your relay to know which

pins are used for the coil.

The additional image illustrates the pin layout of your 2N2222 transistor. This will

help you understand what pin needs to connect to which part of the circuit.

Time to get this hooked up!

kareem1 (/member/kareem1/)

please can put the full arduino sektch here

nathanknz (/member/nathanknz/) (author) kareem1

Hi kareem1,

There is a link on step 1 to theInstructable about the Teleduino

service. There are downloadlinks available there.

Thanks!

MJ93 (/member/MJ93/)

(http://cdn.instructables.com/FHA/1Y85/H1JUGGS2/FHA1Y85H1JUGGS2.LARGE.jpg)

(http://cdn.instructables.com/FCU/ZB0V/H1JUA0VE/FCUZB0VH1JUA0VE.LARGE.jpg)

« Previous

(/member/MJ93/)

7 months ago Reply (CDYAJP6HMVJ9YCZ)

(/member/Seduction/)

1 year ago Reply (C93P6C8HDOWA1KS)

(/member/Prodigal_Son/)

1 year ago Reply (CLAL6OVHD4VNR7M)

(/member/Prodigal_Son/)

1 year ago Reply (CD16ZSFHD4VNNVE)

(/member/Seduction/)

1 year ago Reply (CH7NDJ7HD4VNKA8)

Hi there...first of all hats off to u fr u efforts and thanks fr being generous for sharingthis information.

is there a way i can control more than 1 relay (4 in my case) ..i've got ethernet sheildup running and till nw i am able to control a relay(thanks to the tutorial)

Seduction (/member/Seduction/)

Hello, Thank you both, nathanknz and Prodigal_Son. I relaxed when you said to me you can

control arduino with your android app via teleduino. Now time to make something good with these.

thanks again..

Prodigal_Son (/member/Prodigal_Son/)

Hello again

Now you can download Teleduino Controller on Google Play:

https://play.google.com/store/apps/details?id=appinventor.ai_ssslzc.Teleduino_Controller

(https://play.google.com/store/apps/details?id=appinventor.ai_ssslzc.Teleduino_Controller)

And like the info says, if you miss any functions please contact me and I will try to add

it in future releases.

Prodigal_Son (/member/Prodigal_Son/)

Hello Seduction.

I m the one that Nathan points at.

I we created an Android App that let´s you control your Teleduino device.

Short description for v1.0: 6 buttons for Units on (turn green when pushed = status), can control both serial and

Digital out. 6 buttons for Units off (puts the On button black again when pushed), same as above.

4 Toggle-buttons, controls only Digital Pins.

Long press on any buttons opens the Button Settings. Choose label and what it shoudcontrol.

The Settings button on main screen is used to set the Teleduino Key, Define Serial

and Digital Pins. Also as Debug where the last URL sent to Teleduino is shown.

I m about to release the app on Google Play any day now and I ll inform you in thisthread when It´s available for the public.

Seduction (/member/Seduction/)

Hello,

Firstly i have to say that it's nice work. I want to do that project with some diffrences. Inaddition to this project, i wanna add android interface to control it. So, i want to

control my house's lights with my android phone. With your project i learned control

relay with teleduino. But i dont know, can i send my commands(like turn on the lights)from my android application to arduino via teleduino? If it is possible can you give me

a lead? I am new with arduino and teleduino. But I am willing to do this project. please inform

me about my question. thanks..

(/member/nathanknz/)

1 year ago Reply (C5OH19ZHD4VHK0A)

(/member/najito/)

1 year ago Reply (CO5616SH4VQT4MD)

nathanknz (/member/nathanknz/) (author) Seduction

Hi Seduction,

Thanks for your message.

Yes it is certainly possible to make

API calls from an Androidapplication, however I haven't

done any Android development(yet!) so I can't be of much help

there.

I have been contacted recently bysomeone who has written an

Android app for basic control viaTeleduino. I'll let him know that you

have been in touch and point himto this conversation.

Thanks,

Nathan.

najito (/member/najito/)

nice

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