print("Decimal: "); Serial.println(decNum); } void loop() { // 空循环 } 注意事项 确保输入的字符串格式正确,否则转换可能会失败或产生错误的结果。 对于十六进制字符串,通常以0x或0X开头。 使用atoi()时,如果字符串包含非数字字符,转换将在遇到第一个非数字字符时停止。 String类的
hexCharToDecimal()函数用于将16进制字符转换为整数，hexToAscii()函数循环遍历输入的16进制字符串，获取...
否则测不出异同 public void test1(){ String strHex="ffff"; int ia = Integer.pa...
stringOne = String(millis(), DEC); // prints "123456" or whatever the value of millis() is: Serial.println(stringOne); //using a float and the right decimal places: stringOne = String(5.698, 3); Serial.println(stringOne); //using a float and less decimal places to use rounding: ...
Serial.println("十进制数 " + String(decimalNumber) + " 转换为二进制是:" + binaryNumber); } String decimalToBinary(int decimal) { String binary = ""; while (decimal > 0) { int remainder = decimal % 2; binary = String(remainder) + binary; decimal = decimal / 2; } return binary;...
decimal if you want to.// this also works if you uncomment it:// Serial.print(thisByte, DEC);Serial.print(", hex: ");// prints value as string inhexadecimal(base 16):Serial.print(thisByte,HEX);Serial.print(", oct: ");// prints value as string in octal (base 8);Serial.print(...
// prints value as string as an ASCII-encoded decimal (base 10). // Decimal is the default format for Serial.print() and Serial.println(), // so no modifier is needed: Serial.print(thisByte); // But you can declare the modifier for decimal if you want to. ...
// using a float and less decimal places to use rounding: stringOne = String(5.698, 2); Serial.println(stringOne); // do nothing while true: while (true); } 串口: 16:39:47.782 -> &⸮P 16:39:47.782 -> <⸮Fq⸮ n⸮⸮⸮0u8⸮ ...
target : the string to search for (char) Returns boolean Serial.findUntil() Description 从串行缓存中读数据直到找到目标字符串或停止符 Serial.findUntil() reads data from the serial buffer until a target string of given length or terminator string is found. The function returns true if the target...
h> #include <string.h> // 将16进制字符转换为对应的整数 int hexCharToDecimal(char...