我正在尝试构建这个：
没有 killswitch 和 debugmode 的代码看起来像这样：
// glitchamin
// simple theremin synth with killswitch
// Jacob Peck (a.k.a. ~suspended-chord, http://suspended-chord.info)
// adapted from http://www.adafruit.com/blog/2009/05/19/piezo-with-an-arduino-photoresistor/
// circuit:
// pin d9: pin > +buzzer- > gnd
// pin d10: pin > switch > 5v, switch > 10kOhm resistor > gnd (optional)
// pin a0: 5v > cds > pin, pin > 10kOhm resistor > gnd
// pin a1: 5v > pot, pot > pin, pot > gnd
// pin a2: 5v > pot, pot > pin, pot > gnd
//#define DEBUG // uncomment to get serial output, but it kills the speed of the
// algorithm, making for a very bad cycle rate
//#define KILLSWITCH // comment to disable killswitch code
int photosensorPin = 0;
int cutterpotPin = 1;
int cyclepotPin = 2;
int piezoPin = 9;
//#ifdef KILLSWITCH
//int killswitchPin = 10;
//#endif
int val = 0;
int cut = 0;
int cycle = 0;
int kill = 0;
void setup() {
pinMode(piezoPin, OUTPUT);
//#ifdef KILLSWITCH
// pinMode(killswitchPin, INPUT);
//#endif
//ifdef DEBUG
// Serial.begin(115200);
//endif
}
void loop() {
digitalWrite(piezoPin, LOW);
val = analogRead(photosensorPin);
cut = analogRead(cutterpotPin);
cycle = analogRead(cyclepotPin);
//#ifdef KILLSWITCH
// kill = digitalRead(killswitchPin);
//#endif
////#ifdef DEBUG
//// Serial.print("CdS: ");
//// Serial.print(val);
// Serial.print("\tCutter: ");
// Serial.print(cut);
// Serial.print("\tCycle: ");
// Serial.print(cycle);
//#ifdef KILLSWITCH
// Serial.print("\tKill: ");
// Serial.println(kill);
//#else
// Serial.println("");
//#endif // killswitch
//#endif // debug
val = val / map(cut, 0, 1023, 15, 2);
cycle = map(cycle, 0, 1023, 1, 1000);
//#ifdef KILLSWITCH
// if (!kill) { // if not killed
//#endif
for( int i=0; i<cycle; i++ ) { // play for cycle pot's reading
digitalWrite(piezoPin, HIGH);
delayMicroseconds(val);
digitalWrite(piezoPin, LOW);
delayMicroseconds(val);
}
//#ifdef KILLSWITCH
// }
//#endif
}
我总是得到错误：
找不到任何名为“输出”的内容。
我究竟做错了什么？
谢谢。