机型：华为mate20Pro，微信版本：7.0.21，微信号：HeZimuu, 8日九点半到十一点之间，代码：function sendAckCmd(sendBuffer) {
  console.log("sendAckCmd:", UUID_COMMON_WRITE.toUpperCase() + ":" + byte2hexStr(sendBuffer));
  wx.writeBLECharacteristicValue({
    deviceId: onDeviceId,
    serviceId: onServiceId,
    characteristicId: UUID_COMMON_WRITE.toUpperCase(),
    value: sendBuffer,
    success: (res) => {
      console.log('write sucess', res)
    }, fail: (res) => {
      console.log('write fail', res)
      wx.showToast({
        title: res.errMsg,
        icon: 'fails',
        duration: 3000,
      })
    }
  })
}