int incomingByte = 0; // for incoming serial data void setup() { Serial.begin(9600); // opens serial port, sets data rate to 9600 bps } void loop() { // send data only when you receive data: if (Serial.available() > 0) { // read the incoming byte: incomingByte = Serial.rea...
例如,当使用serial.write(INT)输出一个整型数 123 时,显示出的字符为"{",因为ASCII码 123 对应的字符为"{" 软件模拟串口通信——softwareserial 类库使用 除HardwareSerial 类库外,arduino还提供了softwareserial类库,可将其他数字引脚通过程序模拟成串口通信引脚 通常将arduino上自带的串口成为硬件串口,而使用softwares...
http://arduino.cc/en/Serial/Print 代码如下: chartmp[] ="hello world";voidsetup() { Serial.begin(9600); }voidloop() { { Serial.println("In DEC:"); Serial.println(tmp[1],DEC);//tmp[1] points to 'e' of the "hello world"delay(500); Serial.println("In HEX:"); Serial.println...
int potvalue = analogRead(A0); // 从 POT (0-5V) 读取模拟值 byte SlaveSend = map(potvalue,0,1023,0,127); // 将potvalue数字值(0到1023)转换为(0到127) Wire.write(SlaveSend); // 将一个字节转换后的 POT 值发送给主控 }
Serial.available() 参数 None 返回 串口已经准备好的字节数 例子 int incomingByte = 0; // for incoming serial data void setup() { Serial.begin(9600); // opens serial port, sets data rate to 9600 bps } void loop() { // send data only when you receive data: ...
Serial.begin(9600); } (4)循环函数 void loop() { // send the value of analog input 0: 发送模拟输入 0 数据到串口 Serial.println(analogRead(A0)); // wait a bit for the analog-to-digital converter to stabilize after the last // reading: ...
I2C - Send Data to Arduino UNOMaterials AmebaD [ AMB23 / AMB21 / AMB22 / BW16 / AW-CU488 Thing Plus / AMB25 / AMB26 ] x 1 Arduino UNOx 1 Example IntroductionThere are two roles in the operation of I2C, one is “master”, the other is “slave”. Only one master is allowed ...
AT+CIPSEND :- this commandisusedforsending datatotheserver.Afterinput, this commandserverasksfordata. 输入数据后,我们将 26 发送到服务器。如果一切正常,则数据将成功发布到服务器,SparkFun服务器以通过或失败字符串进行响应。 工作说明: 从GSM模块的GPRS发送数据的过程很容易。在这个项目中,我们将通过使用键...
int incomingByte = 0; // for incoming serial data void setup() { Serial.begin(9600); // opens serial port, sets data rate to 9600 bps } void loop() { // send data only when you receive data: if (Serial.available() > 0) { ...
client.connect(host, port)) { Serial.println("connection failed"); delay(5000); return; } // This will send a string to the server Serial.println("sending data to server"); if (client.connected()) { client.println("hello from ESP8266"); } #if 0 // wait for data to be ...