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Title : KH 341: IR Basics Part 1
Description : Basics of IR Control IR control is a BINARY communications systemIt uses a series of "0" and "1" (off or on) to convey a value from a transmitter to a receiverThe "Transmitter" is an IR LED and the "Receiver is a photosensitive element that responds to IR light"However... just being able to "see" if the IR LED is lit doesn't allow us to communicate.We need to have a "protocol" that defines how long a "control sequence" is and how to read it.- In other words, I need to know when the sequence starts, and when it ends.We're going to use the "IRremote" library which understands most of the POPULAR protocols Demo of Reading IR CodesShow InterfaceShow codesShow HardwareLet's Assemble the hardware! PartsIR Receiver (AX-1838HS) and LEDArduino Nano Pinout of the IR ReceiverFrom left to right, looking at the front of the sensorOutGNDVCC Let's Program! First, we need to include the "IRremote" LibrarySketch > Include Library > Manage Libraries

#include // This is the library we need to speak IR protocols#define IR_PIN 2 // The digital pin to which the IR Reciever is connectedIRrecv irrecv(IR_PIN); // Turn on the recieverdecode_results ircode; // Create a structure called "IRcode"void setup{Serial.begin(9600); // Start the Serial Port (for debug)irrecv.enableIRIn; // Start the receiver}void loop{if (irrecv.decode(&ircode)) // IF the IR reciever has received a code, THEN run the following:{Serial.println(ircode.value, HEX); // Print the received code to the Serial Port (for Debug)irrecv.resume; // Wait for the next IR code}}

** This code is a basic IR code reader. It will receive an IR code from a remote, then print it to the serial console

Now that we know we can receive IR codes w/our Nano, let's DO something with it!

Code for this Episode can be found at the link below:

Hosts: Fr. Robert Ballecer, SJ and Megan Morrone
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Size : 21.65MB
Duration : 46:39
Play : 13
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