Arduino MKR1000 + Android + Relay = Christmas gift lock

Story Christmas is here! You've got your gift but you need to unlock it. Get your Arduino MKR1000 and your Android phone ready! New to Arduino MKR1000? You've just hit the right place. This tutorial is meant to be a simple starting point that will introduce you to some cool stuff to make your projects shine. We'll also learn a little bit about UDP and Sockets. (Don't worry if you're not familiar with those ...

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Using an Arduino as a Latching Relay

I wrote this one hot week in July 2010. I've been leaving my front door ajar, to get some air through the house. Probably not a very good idea. So I thought I'd hook up an Arduino to ensure that no one takes advantage of the door being unlocked. This essay isn't meant, primarily, to tell you how to make a "fantastically useful" device. While the device is useful, and could be used for several things, the ma ...

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Arduino Tiny Relay Shield Project

In this Arduino project, you will build a small relay shield from stripboard. The shield can have one or two relays fitted to it. Connect the Arduino and relay shield to your PC via a USB cable. Download the PC software and use it to switch anything on and off that is attached to the relays. The shield is based on the Tiny Stripboard Shield for Arduino project. This video shows the Arduino shield project an ...

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Smart Relay Power Box(SiriProxy Compatible)

If you have ever wanted to control high voltages/currents with an Arduino, setup up a complicated light timer, or even have Siri turn on a Lamp. Then this is an instructable for you! In this instructable in a few simple steps we will build a self-powered smart relay (Arduino style) power box. This box will allow you to safely switch high voltages/currents and since it contains an Arduino compatible board yo ...

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Control a Relay with Arduino

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan. When the button is pressed the fan will turn ON and will remain in this state until the button is pressed again. Arduino Control Relay Schematic How does the circuit works When the button is pressed the Ardui ...

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Connecting a 12V relay to Arduino

To connect a 12V relay to the Arduino you need the following things: - 1 Arduino - 1 diode for example 1N4007 - 1 NPN transistor for example 2N2222 (in the US) or BC548 (in Europe) - 1 relay for example one with coil voltage 12V and switching voltage 125VAC/10 A - 1 multimeter Step 1: Measure the coil resistance We are going to measure the coil resistance to calculate the current. First we must find the coi ...

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Relay Shield

Relay Shield description: Relay Shield provides an easy ways for smart appliance control. It covers control to normal load circuits with 4 photo-coupled solid state relay capable of switching DC90W (or AC360VA). It also provides stand alone power supply, ZigBee-type wireless module socket, and native Arduino compatibility. It can control devices such as solenoid valves, lamps, motors and other high current ...

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Relay Shield

Relay Shield description: Enables the Arduino board to turn on/off devices such as TVs, audio systems, lights and other electrical devices up to 10A/220VAC or 10A/30VDC. Suitable for home/office automation, or controlling other installed equipment. Relay Shield specification:   Relay Shield pinout:   For more detail: Relay Shield ...

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Pebble Shield

Pebble Shield description: A multi-purpose shield designed for classroom use and for quick prototyping of a wide variety of projects. Provides a significant prototyping area for custom projects, and a number of optional sub-systems that can be included or excluded as required: Pebble Shield specification: 20x4 LCD. XBee module. Button inputs. Analog inputs. Temperature sensor (DS18B20 on 1-wire bus) Light s ...

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I/O Shield

I/O Shield description: 6 onboard relays, 6 digital inputs and 6 analog inputs. The digital inputs and relay outputs are equipped with an LED that indicates the status. I/O Shield specification:   I/O Shield pinout:   For more detail: I/O Shield ...

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8-Channel Relay Driver Shield

8-Channel Relay Driver Shield description: Drive up to 8 relays from your Arduino using just 2 I/O pins. Communicates with your Arduino using I2C, so you can stack several shields together to drive 16, 24, or more outputs. I2C connections are linked by default to Arduino pins A4 and A5, but can be switched to use the R3 headers using solder jumpers. This allows the shield to be compatible with older R2 boar ...

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Relay Shield

Relay Shield description: 10 Amp power relay. Relay Shield specification:   Relay Shield pinout:   For more detail: Relay Shield ...

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