Questions tagged [ir]

Infrared (IR) is a form of light which is not visible to the human eye. It can be used in a variety of applications, including remote controls, data transfer, reflectance sensing, and proximity/motion detection.

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3
votes
2answers
6k views

IR Receiver interrupt and arduino sleep mode

I need to put my arduino into the sleep mode in order to consume less power. My arduino receives IR data and do some work with it, but I need to make it sleep until there is no data. If the data has ...
-2
votes
2answers
240 views

I am trying to combine an automatic door lock with an RFID MFRC522 with a IR REMOTE program

I am getting this error. Arduino: 1.8.2 Hourly Build 2017/02/17 11:33 (Windows 8.1), Board: "Arduino/Genuino Uno" Tone.cpp.o (symbol from plugin): In function `timer0_pin_port': (.text+0x0): ...
5
votes
3answers
1k views

Decoding IR codes with IR sensor rather than IR receiver module

I'm looking for a library to decode RAW IR signals from an IR sensor (looks like a black LED, two legged) rather than an IR module (3 legged, rated for a particular frequency - such as 38kHz). Is ...
4
votes
2answers
746 views

Locally declared variable takes up global variable space in dynamic memory/SRAM

I'm trying to make my Arduino Uno control the air conditioner by recording the raw IR signal of several of the AC remotes temperatures using AnalysisIR. However these IR codes are quite long (array ...
3
votes
1answer
1k views

How to send unmodulated IR-Signal via cable?

I need to generate en (extended) NEC signal. I have connected an Arduino with a display-device via an IR cable. Arduino --> IR-cable --> IR-input of display device IR-cable: One plug is ...
2
votes
1answer
1k views

A/C doesn't detect IR codes sent from Arduino

I have an IR receiver and an IR LED I got from a kit (I don't have the datasheets for them). I uploaded an Arduino sketch to record my A/Cs IR codes. Those were NEC encoded 32bit integers. After ...
0
votes
1answer
106 views

Arduino emits signal A (infrared) but another Arduino receives everything but A (IR-LED problem)

Situation: I was trying to make a simple Arduino program that mimics my TV-Remote ON-OFF button. Diagnosis: It just won't work. So just to check I grabbed another Arduino (2) and added my IR-Sensor ...
0
votes
1answer
584 views

Sending Analog Data with and IR LED

This is the idea. I have 2 Arduinos. One with an IR LED and the other with an IR receiver. I want to read the values of multiple sensors and transmit it to the other Arduino via IR. I know how to send ...