编译通不过,出现 E:\瀹夎?杞?欢\arduino-1.5.7\Arduino\libraries\RobotIRremote\src\IRremoteTools.cpp:5:16: error: 'TKD2' was not declared in this scope
int RECV_PIN = TKD2; // the pin the IR receiver is connected to,怎么弄???求大神指点
F:\Arduino学习\arduino-1.7.10.org-windows\arduino-1.7.10\libraries\RobotIRremote\src\IRremoteTools.cpp:5:16: error: 'TKD2' was not declared in this scope
int RECV_PIN = TKD2; // the pin the IR receiver is connected to