add arduino code

.gitignore

@@ -99,3 +99,5 @@ ENV/
 
 # mypy
 .mypy_cache/
+
+.idea/

arduino_remote/arduino_remote.ino

@@ -0,0 +1,37 @@
+#include <IRLibAll.h>
+
+IRsend mySender;
+
+void setup() {
+  Serial.begin(9600);
+}
+
+void loop() {
+  char c = Serial.read();
+  if (c != -1) {
+    switch (c) {
+      case 'm':
+        mySender.send(NEC,0x4BB6906F, 32);  // TV/CD
+        break;
+      case 'r':
+        mySender.send(NEC,0x4B36D32C, 32);  // on-off
+        break;
+      case 't':
+        mySender.send(NEC,0x4B3631CE, 32);  // BD/DVD
+        break;
+       case 'l':
+        mySender.send(NEC,0x4BB6B04F, 32);  // game
+        break;
+       case 'q':
+        mySender.send(NEC,0x4BB640BF, 32); // vol +
+        break;
+       case 'w':
+        mySender.send(NEC,0x4BB6C03F, 32); // vol -
+        break;
+       case 'a':
+        mySender.send(NEC,0x4BB6F906, 32); // aux
+        break;
+    }
+    Serial.write(c);
+  }
+}