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Radio

339 Pins
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2y
n4pgs
By
Greg Faust
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an electronic device is plugged into a cardboard box

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In this tutorial we will learn what RFID is, how it works and how to make an Arduino based RFID door lock. RFID stands for Radio Frequency IDentification and it’s a non-contact technology that’s broadly used in many industries for tasks such as personnel tracking, access control, supply chain management...
a small metal object with wires attached to it

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The Ultimate FM Transmitter (Long Range Spybug): Have you ever wanted to broadcast your own radio station within your neighborhood? Ever get curious on where people get those "Surveillance Bugs" from spy and action movies? This small and simple FM transmitter is the toy that geeks have always want…
an electronic circuit diagram showing the current voltages and power source for this device, it is

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A high power FM transmitter circuit output power is from 0.5watt to 2watt. The circuit is simple to build using transistor 2N2219.
the electronic components are shown with keychain, board and other items to be sold

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an electronic device sitting on top of a table next to a laptop computer and wires

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Arduino RFID and 5110 Screen/ID Card Reader(Rc522): Hi there, today we are going to use Rfid(RC522 with 5110 screen. But this sensor is different than others. Because we will use EEPROM. We want to; 1 - When we show our ID card we see the ''Welcome Ensar Levent'' on the 5110 screen. 2 - When we sho…
a tiny electronic device being held in someone's hand with an antenna attached to it

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Tiny UHF Tracker Transmitter: This is a little circuit that could be used to track an object up to 400m. It is essentially an SAW stabilized OOK modulated RF transmitter. The modulation is done with two low frequency ultra low power oscillators that activate the transmitter ever…
an electronic circuit diagram showing the components

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an electronic circuit diagram with the following components and instructions to make it look like they have been

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the electronic board has many small red and black wires

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RFID projects have been pretty prominent recently, ranging from projects here in Instructables, to our local Silicon Chip magazine in Australia publishing a RFID...
the raspberry pi is an electronic device

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It's a pretty cool setup.
the raspberry pi rfid reader is attached to an arduor board

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Set up a RFID reader for the Pi.
the electronic components are connected to each other

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an arduino rfd circuit with the text, how to use it?

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Arduino RFID Lock Tutorial: Dear friends welcome to another Instructable. This is Nick from educ8s.tv and today we are going to learn how to use this RFID Reader with Arduino in order to build a simple lock system. For the first time, we are going to use RFID tags with Arduin…
an electronic device being worked on by a person with a screwdriver and soldering tool

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an electronic circuit diagram showing the current voltages and other electrical components, including two different types

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1 Transistor FM Spybug: In this instructable i will show you how you can make the simplest spybug ever! I was looking for a project to make for fun when i found this FM transmitter,quickly i got curious, it is a simple FM transmitter but can it become even more simpler? …