ios系统,writeBLECharacteristicValue报错,跪求帮忙
ios版本11.41,微信版本6.7.1,基础库版本2.2.5 直接上代码了,deviceId、serviceId、characteristicId都是通过api获取到的,在向蓝牙设备做写操作的时候,一直返回错误代码10008,错误信息“The value's length is invalid”,请问是接口参数调用问题,还是蓝牙设备返回了错误信息。跪求各位大佬帮忙解决一下,万分感谢。 var hex = '1b840084' var typedArray = new Uint8Array(hex.match(/[\da-f]{2}/gi).map(function (h) { return parseInt(h, 16) })) var buffer = typedArray.buffer;//that.hexStringToArrayBuffer(test) wx.writeBLECharacteristicValue({ deviceId: '291B5157-23FD-61D3-90D5-2D44D314FB97', serviceId: '0000FFE5-0000-1000-8000-00805F9B34FB', characteristicId: '0000FFE9-0000-1000-8000-00805F9B34FB', value: buffer, success: function (res) { console.log('write success') }, fail: function(res) { console.log('write fail') console.log(res) } })