小程序蓝牙发送设备消息

const buffer = new ArrayBuffer(8); 
// 创建一个8字节的 ArrayBuffer 
const dataView = new DataView(buffer); 
const hexString = '55F10101000000000000000000005C'; 
for (let i = 0; i < hexString.length; i += 2) {
    const byte = parseInt(hexString.substr(i, 2), 16); 
    dataView.setUint8(i / 2, byte); // 将数据写入 ArrayBuffer 
}
value: buffer,