https://developers.weixin.qq.com/miniprogram/dev/api/device/bluetooth-ble/wx.writeBLECharacteristicValue.html
写入成功success回调后,
紧接着fail回调报出错误writeBLECharacteristicValue:fail getBLEDeviceCharacteristics valueBase64String is empty.
PS,蓝牙能正常发送接收数据
iphone11,ios13.2
已经解决,原因发送了一次空的buff
麻烦提供能复现问题的代码片段(https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html)
另外,请扫描下图贴一下截图