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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27 views

For what purpose is a metal case on the IR receiver [closed]

What are some infrared receivers with a metal sheath and some have no? Does it help to catch reflected rays? Is this some protection against something? Which infrared receiver should use for what ...
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Laser-game gun IR problems [closed]

I am working on a laser-game gun project. I have had problems with IR from the start. I am using the digispark ATtiny 85 (I hope that is the correct name). I tried running the example IR receiver ...
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I am facing a problem of firing multiple interrupts on nodemcu 1.0 on single rising edge pulse.what is problem and what are the solutions?

I am working on a project which involves counting the drops falling in a drip chamber of a IV fluid gravity based therapy bottle(saline bottle).I am using IR trans-receiver at the drip chamber to ...
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525 views

how to use hx-53 (IR Transmitter Infrared Sensor Module) with ESP32?

ESP32 tx2 (pin17) and rx2 (pin16) uses 3.3v based signals. HX-53 data connect to tx2, gnd to gnd and vcc to vin(5v). But as i can understand HX-53 data input should be 5v based. How can i solve ...
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3k views

Reliably duplicate custom IR remote control with ATTiny85

This is something I'm struggling with for a while and fail to find solid solution. The Arduino IR library provides method for recording arbitrary IR code and re-sending it. This gave me different ...
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1answer
44 views

Determining which raw IR code to use for AC

I'm new on this so go easy on me. I'm trying to make an IR blaster to control my TV and ACs. I realized that when I capture the IR code, power button/temp up and down/mode send raw codes that are ...
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32 views

Is it support to use Infrared radiation module in ESP12E?

I have a IR module -->image as shown is it possible to use the IR module in esp8266? how to do(sent and receive)? what is the packet format of IR module? please explain. Thanks
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211 views

Using the Broadcom AFBR-S50 with Arduino

I'm trying to interface with a Broadcom AFBR-S50MV85G ToF sensor over SPI using an Arduino, which is complicated by the fact that the provided library and reference application is written for Cortex ...
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1answer
49 views

Which one is IR led?

I've ever been so confused in my life. I'm new to Arduino and electronics but I just can't figure it out which diode is IR transmitter/receiver or even if it is IR. I know that IR is not visible to ...
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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 ...
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2answers
1k views

Can I connect more than one IR receiver to an Arduino Uno?

I want to use #include <IRremote.h> to receive information from an infrared remote control. It works perfectly with one IR receiver. But I want to put three or four IR receivers: IRrecv ...
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85 views

Problems when racing multiple IR controlled Arduino robots

We are attempting to race 3 IR-controlled Arduino robots (Elegoo IR kit), but the IR signal from each remote seems to be picked up by all three receivers. It is possible to create a unique bond ...
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1answer
31 views

How to increase the range to IR transistor receiver

I have a Arduino project which controls LED using IR Receiver and Transistor.The circuits works fine,But the problem is the LED is Blinking Brightly only for short range basically between 5-8 cm,but ...
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34 views

Using arduino as a remote control

I have old Sony amplifier (F117R) and CD player (CDP-590), both equipped with IR remote controls. The problem is that I bought them as vintage without remotes. I have a rough idea how to build ...
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28 views

Arduino and Processing- Conditionals only executing sometimes in response to IR codes

I am reasonably new to arduino and even newer to Processing so still struggle with trouble shooting my code. The intention of my sketch is have Processing receive IR codes from the arduino and ...
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1answer
111 views

How can I receive signal from remote control using tcrt5000 sensor module

how can I use tcrt5000 sensor module instead of TSOP31238 (TSOP1738) IR receiver to get signal from remote control? I want to create remote control for my PC to navigate through my slide shows. Thanks ...
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2answers
36 views

Follow black and white line simultaneously

I have a line following bot which uses IR sensors (LSA08, more specifically) to detect the white line on black surface and stay on track. For the project however, there is a trick in the track. At a ...
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4answers
8k views

How to connect IR Transmitter and Receiver Module?

The IR Transmitter and Receiver module has both receiver and transmitter in same board. I tried Arduino IR Remote library example to decode Remote signal using below connection, but its not working. ...
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1answer
140 views

Controlling relays with IR and button

What I have: 1 x 8 channel relay 1 x IR receiver 1x Arduino Uno 1x momentary switch 1x breadboard 1x 10K resister I think the wiring is all ok as for the most part things are working as they should.....
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1answer
413 views

Breaking out of a while loop using IR remote for neopixel

I've been piecing together various lighting effects. I am wanting to have each lighting effect loop until another button is pressed to trigger another lighting effect. I've come to a bit of ...
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54 views

IRremote library not compiling for Sparkfun RedBoard Artemis

I have an IR Receiver hooked up to digital pin 10 on my Sparkfun RedBoard Artemis and I want to decode IR signals coming from a TV remote. I have the following code: #include <IRremote.h> int ...
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149 views

Problem sending IR signal on Arduino Leonardo/Uno (IRRemote library)

I am trying to use my Arduino Leonardo (or Uno!) as a remote with the IRRemote library. The current setup picks up and decodes a signal perfectly, but fails to retransmit it. I have tested the ...
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1answer
448 views

Using digital pin 11 for DMDCon and IR remote

I have a project where I would like to control a countdown clock using a remote with: Arduino Uno R3 Development Board Funduino Uno Protoshield Board Freetronics Dot Matrix Display Connector ...
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1answer
370 views

Write an array to SD

I'm new to the Arduino and I asked some questions around here and they were really helpful so I'm hoping I will get help once more #define maxLen 800 volatile unsigned int irBuffer[maxLen]; //...
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220 views

Yun - FileSystem.Open prevents client.println from outputting to web page

The below code is meant to display lines stored in a text file to an arduino based web page (it's a IR gate monitoring solution). When I visit I can execute client.println("hello") and I see the ...
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2answers
251 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): ...
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571 views

How do I save IR codes from my LG Air Conditioner remote and replay them?

I am currently using the following code #include <IRremote.h> int RECV_PIN = 11; IRrecv irrecv(RECV_PIN); decode_results results; void setup() { Serial.begin(9600); irrecv.enableIRIn(); // ...
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1answer
105 views

MOSFET dimmer IR controlled

I am trying to make a group of LED dim with PWM to a MOSFET. The code seems to work for this, but the trouble is that the IR receiver will only receive the signal to turn on the lights and then IR ...
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1answer
717 views

Tone() conflicts with IRremote library (multiple definition of `__vector_7')

I have just started with Arduino and C++ so I apologise if my question is very basic. I am trying to use tone() with a passive buzzer to create a sound while also using the IRremote library for a ...
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2answers
383 views

Arduino Switching Between Loops IR Remote

I've been working on an LED strip project. However, I've come to a stand still at the moment. Within the program I am wanting to assign different lighting effects to each button on my IR remote. I am ...
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22 views

Arduino Setup for RF Transmit and Receive, IR Receive, WS2812 LEDs and a Piezo Speaker

I am new to Arduino and microcontroller in general and just finished one Project (TonUINO - a DIY music box for kids). Now I am planing and working on my next project. A IR shooting range. The guns ...
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1answer
85 views

Measure position of gear with arduino

So, my plan is to be able to turn a motor, with a gear on the end, for a certain amount of gear teeth then stop it. I can’t find a data sheet for the motor but it is very fast, brushed and DC. I was ...
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1answer
185 views

Using Serial.write() to send a uint32_t send one byte x4 or send 4 bytes x1

In the IRremote library, IR signals are decoded and held in results.value. My project uses the NEC protocol which is 32 bits, so the IR code will always be 4 bytes. uint32_t dCodedIR; // // code ...
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1answer
76 views

Arduino IDE upload error

I've recently been trying to make program using IRremote(library) in my Arduino IDE(v1.8.9), but whenever I hit the upload button this error message is returned Sketch uses 7514 bytes (23%) of ...
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115 views

Change data-type String

I'm currently working with an ESP8266 NodeMCU V3 and an IR transmitter breakout board. The module receives NEC IR commands trough a HTTP request and then sends them trough the IR transmitter. Getting ...
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2k views

ESP32 IR remote

my board is a firebeetle esp32 that I am using as an IR remote. After using the Ken Shirrif IRremote library for about 6 months successfully, then the time came to change a few things on the web ...
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2answers
210 views

How does input from IR receiver to Arduino UNO board work?

I have a very simple circuit with an Elegoo IR receiver module connected to an Arduino UNO. The three wires are connected correctly with the data wire (Y) connected to pin 8. The code works fine, as ...
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1answer
3k views

How can I stop my Servo rotating?

I have a continuous servo motor connected to my Arduino UNO. I want it to react to the Hexadecimal code received by an Infrared remote. I want the motor to rotate once in one direction and then rotate ...
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30 views

Controlling multiple Screens using IR

I'm a software Engineer, and recently I’ve been working on a new Software Part of this Software is to be able to turn off and on multiple TV screens using timers in the software First idea came to my ...
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1answer
226 views

what is the difference between array of uint16_t data versus an array of uint16_t variables?

I've been struggling with weird behavior, crashes and general problems when trying to use an array of four uint16_t groups of data. When I create four separate variables and load that into an array, ...
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5answers
3k views

Why is Arduino resetting while driving motors?

I am driving motors for my line-follower project . The circuit schematic is given below The power source is a 11.1V 2200mAh 25C Lipo . Practically the cells give 11.5-12V. I used a switching buck ...
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34 views

Cannot give battery through USB cable

I just make a simple circuit with uno and breadboard ,that connected 4 LED and 4 IR sensor. The arduino program is simple that makes the light on or off with the determination of IR sensors . However ...
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1answer
210 views

invalid conversion from 'uint16_t* error when creating an array of uint16_t items

I'd like to create an array of remote control codes provided by the raw read feature of the irlib2 library. irlib2 provides the following uint16t arrays using the following format: #define ...
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2answers
699 views

KY-022 IR receiver, LED always on, no output

I've been trying to use a KY-022 to read IR signals. However no output is being produced and the LED on the board is constantly on. Board: Arduino Uno R3 I followed the procedure found here. The ...
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28 views

Do I have to use Arduino IRRemote libraries?

I have seen some tutorials to build your own IR Remote. But all of them use a library that contains the IR code. The question is, could I just skip, injecting a library and make the Arduino output a ...
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1answer
57 views

Precise On/Off control for IR LED

My goal is to be able to send/receive IR messages in my own custom format and send messages ~10 bytes long. My message object will get serialized down to individual bits, which are transmitted by ...
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4answers
2k views

Generating a 38 KHz signal without timers

I am currently trying to generate a 38 KHz signal for my TSOP4838 (http://www.vishay.com/docs/82459/tsop48.pdf) with an ATtiny84A. I know the real thing would be to utilize a timer but the ATtiny ...
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1answer
117 views

Arduino RGB LED not working all the time?

I was creating an RGB LED System with one 1 RGB LED controlled by an IR Remote. I wanted to assign a button to trigger a mood-light which cycles through the rainbow, and that works fine. But when I ...
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1answer
61 views

Problems with Arduino + IR + Raw code low memory

im having a problem with my new project with arduino + ir emitter + big raw codes. I've tryed this way: https://gist.github.com/jjmjr/41ed083c8229d0218c962641c5af27b0 As you can see each of my raw ...
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1answer
124 views

Sanity check for dual IR LED circuit [closed]

If the intent is to drive the two LED's with 200-400mA (using PWM @ 38Hz), is there anything wrong with this solution? Perhaps this is a better solution, as it ensures the current is exactly the same ...