C++ 如何正确接收和发送来自 Arduino 的原始 IR 数据
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/22751255/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to correctly receive and send raw IR data from Arduino
提问by Lemuel Adane
Following is my code to read the raw IR data from Arduino:
以下是我从 Arduino 读取原始 IR 数据的代码：
#define sprint Serial.print
#define sprintln Serial.println
#include <IRremote.h>
#define IR_RCVR_PIN 11
IRrecv ir_receiver(IR_RCVR_PIN);
decode_results results;
void setup() {
Serial.begin(9600);
ir_receiver.enableIRIn(); // Start the receiver
}
void loop() {
if (ir_receiver.decode(&results)) {
dump(&results);
ir_receiver.resume(); // Receive the next value
}
}
int c = 1;
void dump(decode_results *results) {
int count = results->rawlen;
sprintln(c);
c++;
sprintln("For IR Scope: ");
for (int i = 1; i < count; i++) {
sprint("0x");
sprint((unsigned int)results->rawbuf[i], HEX);
sprint(" ");
}
sprintln("");
sprintln("For Arduino sketch: ");
sprint("unsigned int raw[");
sprint(count, DEC);
sprint("] = {");
for (int i = 1; i < count; i++) {
sprint("0x");
sprint((unsigned int)results->rawbuf[i], HEX);
sprint(",");
}
sprint("};");
sprintln("");
sprint("irsend.sendRaw(raw,");
sprint(count, DEC);
sprint(",38);");
sprintln("");
sprintln("");
}
Using that I can get this from a remote controller:
使用它我可以从遥控器得到这个：
1
For IR Scope:
0x47 0x1F 0xB 0x17 0xA 0x17 0xB 0x6 0xA 0x6 0xB 0x6 0xA 0x17 0xB 0x6 0xA 0x6 0xB 0x17
0xA 0x17 0xA 0x7 0xA 0x17 0xA 0x7 0xA 0x6 0xB 0x17 0xA 0x17 0xA 0x6 0xB 0x17 0xA 0x17
0xB 0x6 0xA 0x6 0xB 0x17 0xA 0x6 0xB 0x6 0xA 0x17 0xB 0x6 0xA 0x6 0xB 0x6 0xA 0x7 0xA
0x6 0xB 0x6 0xA 0x6 0xB 0x6 0xA 0x7 0xA 0x6 0xB 0x6 0xA 0x7 0xA 0x6 0xB 0x6 0xA 0x6 0xB
0x6 0xA 0x7 0xA 0x6 0xB 0x6 0xA 0x6 0xB 0x17 0xA 0x6 0xB 0x6 0xA
For Arduino sketch:
unsigned int raw[100] =
{0x47,0x1F,0xB,0x17,0xA,0x17,0xB,0x6,0xA,0x6,0xB,0x6,0xA,0x17,
0xB,0x6,0xA,0x6,0xB,0x17,0xA,0x17,0xA,0x7,0xA,0x17,0xA,0x7,0xA,0x6,
0xB,0x17,0xA,0x17,0xA,0x6,0xB,0x17,0xA,0x17,0xB,0x6,0xA,0x6,0xB,0x17,0xA,
0x6,0xB,0x6,0xA,0x17,0xB,0x6,0xA,0x6,0xB,0x6,0xA,0x7,0xA,0x6,0xB,0x6,0xA,
0x6,0xB,0x6,0xA,0x7,0xA,0x6,0xB,0x6,0xA,0x7,0xA,0x6,0xB,0x6,0xA,0x6,0xB,
0x6,0xA,0x7,0xA,0x6,0xB,0x6,0xA,0x6,0xB,0x17,0xA,0x6,0xB,0x6,0xA,};
So on sending this data I can use this instruction:
因此，在发送此数据时，我可以使用此指令：
irsend.sendRaw(raw,100,38);
The problem is I cannot get any respond from the device I need to control. I already check my IR transmitter my reading is the same above.
问题是我无法从我需要控制的设备上得到任何响应。我已经检查了我的红外发射器，我的读数与上面相同。
Im I missing something?
我错过了什么吗？
回答by Lesto
You should take multiple reading of the signal, then average their values to remove little bias error.Be sure your emitter and receiver use the same light wavelength and to work at 38KHz (you are transmitting modulating at 38KHz. If your emitter does modulation for you, then you should not use IRremote).
您应该多次读取信号，然后平均它们的值以消除很小的偏差误差。确保您的发射器和接收器使用相同的光波长并在 38KHz 下工作（您以 38KHz 调制传输。如果您的发射器为您进行调制，那么您不应该使用 IRremote）。
Also, what do you expect as "response"? Normally, IR communication is one-way.
另外，您期望什么是“响应”？通常，IR 通信是单向的。
回答by Tristan Grimaux
You are reaching the 100 bytes limit of RAWBUF, so you probably need to increase that number. Try going up to 400.
您已达到 RAWBUF 的 100 字节限制，因此您可能需要增加该数字。尝试达到 400。
Open in IRemote.h and modify this line (about #122)
在IRemote.h中打开并修改这一行（约#122）
#define RAWBUF 100 // Length of raw duration buffer
to something bigger
更大的东西
#define RAWBUF 400 // Length of raw duration buffer
I'm tying your code with a Samsung air conditioner and I'm receiving 116 bytes
我正在将您的代码与三星空调绑定，我收到了 116 个字节
