本帖最后由 lzwkiven 于 2011-5-1 12:28 编辑
void loop() {
// read the analog in value:
sensorValue = analogRead(analogInPin);
// map it to the range of the analog out:
outputValue = map(sensorValue, 0, 1023, 0, 255);
// change the analog out value:
analogWrite(ana**utPin, outputValue);
delay(10);
}
我的c语言不过关,请问一下map(sensorValue, 0, 1023, 0, 255)是什么意思 |