2. createNestedArray —— 在当前对象中添加子key,子value为json数组 StaticJsonDocument<256>doc;JsonObjectroot=doc.to<JsonObject>();root["status"]="on";JsonArraylevels=root.createNestedArray("levels");levels.add(10);levels.add(30);serializeJsonPretty(root,Serial); 结果: {"status":"on","le...
// Otherwise, add the incoming byte to the array: if (firstContact == false) { if (inByte == 'A') { myPort.clear(); // clear the serial port buffer firstContact = true; // you've had first contact from the microcontroller myPort.write('A'); // ask for more } } else { ...
The first 2 (or 3) bands are the 2 (or 3) first digits of the value, and the 3rd (or 4th) band is the power of ten that comes after those 2 (or 3) digits. This is also called the multiplier, and is just the number of zeros you have to add. The last band is the toleranc...
IRDATA_FLAGS_WAS_OVERFLOW Too many marks and spaces for the specified RAW_BUFFER_LENGTH. To avoid endless flagging of overflow, irparams.rawlen is set to 0 in this case. IRDATA_FLAGS_IS_MSB_FIRST This value is mainly determined by the (known) protocol.To...
This writes an analog value to a pin and can be any value between 0 and 255. This means that the value sent to this method can be used as an adjustable voltage and sent through the pin to any controller on the side: analogWrite(11, 122); delay(ms) This method tells the program to...
void add(value)add a single value to CRC calculation. void add(array, uint16_t length)add an array of values to the CRC. In case of a warning/error for the array type, use casting to (uint8_t *). uint8_t getCRC()returns CRC calculated so far. This allows to check the CRC of...
JsonArray& datapoints = id_datapoints.createNestedArray("datapoints"); datapoints.add(value); JsonObject& myJson = jsonBuffer.createObject(); JsonArray& datastreams = myJson.createNestedArray("datastreams"); datastreams.add(id_datapoints);charp[200];intnum = myJson.printTo(p,sizeof(p)); ...
Gopro Ardunio控制库.2 Gopro Ardunio控制库.3 代码语言:javascript 复制 #include<GoPRO.h>#defineCONNECT_PRESSED1#defineON_PRESSED2#defineCAPTURE_PRESSED3char ssid[]="yourNetwork";// your network SSID (name)char pass[]="yourPassword";// your network passwordconstint buttonConnect=A1;constint bu...
// add the characteristic to the service ledService.addCharacteristic(switchCharacteristic); // add service BLE.addService(ledService); // set the initial value for the characeristic: switchCharacteristic.setValue(0); // start advertising
; // wait for serial port to connect. Needed for native USB port only }。没有串口连接就不往下执行,进入死循环。主要用在setup()函数中。 Serial.print(value,format),format有BIN,OCT,HEX,默认十进制DEC,Serial.write意思Writes binary data to the serial port.Serial.write(33);就表示一个!符号。