前言:

承接上篇文章,由于蓝牙设备返回值时进制形式的byte,所以要用到本篇文章进行解析

代码:



//byte数组转换为无符号short整数
byteToUnsignedShort(bytes, off) {
let high = bytes[off + 1];
let low = bytes[off];
return (high << 8 & 0xFF00) | (low & 0xFF);
},
//无符号short转换为2字节的byte数组
unsignedShortToByte(s){
let targets = [];
targets[1] = (s >> 8 & 0xFF);
targets[0] = (s & 0xFF);
return targets;
},
//字符串转换为2字节的byte数组
stringToByte(array){
let hexArray = []
for(let i=0;i<array.length;i++){
let value = parseInt(array[i], 16)
hexArray.push(value)
}
return hexArray;
},