Arduino 精要
来自Jack's Lab
目录 |
1 总览
2 扩展
3 应用
4 精华
5 糖豆
5.1 float2str
String(NUMBER, SCALE); String(3.141592,5); # "3.14159"
5.2 Software Serial
5.3 AT CMD
SerialEvent() is called after a loop(), if there is serial data in the buffer.
String input_str = ""; // a string to hold incoming data boolean str_over = false; // whether the string is complete void setup() { Serial.begin(9600); input_str.reserve(200); // reserve 200 bytes for the inputString: } void loop() { if (str_over) { /* Identify the CMD and processing */; input_str = ""; // clear the string buffer str_over = false; } } /* * SerialEvent occurs whenever a new data comes in the hardware serial RX. * This routine is run between each time loop() runs, so using delay inside * loop can delay response. Multiple bytes of data may be available. */ void serialEvent() { while (Serial.available()) { char in = (char)Serial.read(); input_str += in; if (in == '\n') { // read a line into string buffer str_over = true; } } }