您好我的C代码有问题,我正在尝试println(F(VARIABLE))但我收到错误
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
sendData(25,60);
}
void loop() {
// put your main code here, to run repeatedly:
}
void sendData(float temperature,float batterylvl){
char tmp[25];
char batt[25];
sprintf(tmp, "temperature=%f", temperature);
sprintf(batt, "battery=%f", batterylvl);
Serial.println(F(tmp));
Serial.println(F(batt));
}
答案 0 :(得分:3)
[nil<-header1->nil][data1 ...............................]
用于常量字符串。例如传递给F()
的格式字符串。与传递给sprintf()
的变量不同。