红外发射器入门指南

本教程演示如何在 Wio Terminal 中使用内置红外发射器组件。红外发射器是一个数字接口，可用于发送红外信号，就像遥控器一样！

为 Wio Terminal 安装红外库

1. 访问 Seeed_Arduino_IR 仓库，将整个仓库下载到本地驱动器。

2. 现在可以将红外库安装到 Arduino IDE 中。打开 Arduino IDE，点击 sketch -> Include Library -> Add .ZIP Library，选择刚刚下载的 Seeed_Arduino_IR 文件。

示例代码

导航到 Files -> Examples -> IRLib2 -> Send。发送示例将出现，应如下所示。要测试来自 Wio Terminal 的红外信号，您可以使用 Grove - 红外接收器。这可以轻松修改为使用 Wio Terminal 作为您的电视遥控器！

注意： WIO_IR 为内置红外发射器定义（已在此库的头文件中定义，因此无需在 ino 文件中定义）

/* send.ino Example sketch for IRLib2
 *  Illustrates how to send a code.
 */
#include <IRLibSendBase.h>    // First include the send base
//Now include only the protocols you wish to actually use.
//The lowest numbered protocol should be first but remainder 
//can be any order.
#include <IRLib_P01_NEC.h>
#include <IRLib_P02_Sony.h>
#include <IRLibCombo.h>     // After all protocols, include this
// All of the above automatically creates a universal sending
// class called "IRsend" containing only the protocols you want.
// Now declare an instance of that sender.

IRsend mySender;

void setup() {
  Serial.begin(9600);
  delay(2000); while (!Serial); //delay for Leonardo
  Serial.println(F("Every time you press a key is a serial monitor we will send."));
}

void loop() {
  if (Serial.read() != -1) {
  //   send a code every time a character is received from the 
  //   serial port. You could modify this sketch to send when you
  //   push a button connected to an digital input pin.
  //   Substitute values and protocols in the following statement
  //   for device you have available.
  //  mySender.send(SONY,0xa8bca, 20);//Sony DVD power A8BCA, 20 bits
    mySender.send(NEC,0x61a0f00f,0);//NEC TV power button=0x61a0f00f
    Serial.println(F("Sent signal."));
  }
}

注意： 红外发射器位于 Wio Terminal 的背面，在 SD 卡槽的左侧。