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HC-05 蓝牙模块开发 - 创客硬件开发 - 清泛IT社区,为创新赋能!
它有六个引脚,引脚的作用如下:
通过厂商App连接串口测试,发现HC-05模块是经典蓝牙2.0,并不支持蓝牙5.0(低功耗BLE),它需要配对码进行配对,App Inventor 2 中使用“蓝牙客户端”组件,而非BLE拓展,必须在手机设置中...
BLE(五)移动端工具 - 创客硬件开发 - 清泛IT社区,为创新赋能!
...自:https://www.gandalf.site/2018/12/ble.html
0x1 Android手机抓取app蓝牙数据0x11 Android蓝牙HCI日志在部分Android机型为开发人员提供了保存蓝牙日志的选项,即可保存手机向设备发送的数据和设备响应的数据,打开方式如下:
开发者模式...
蓝牙BLE设备使用BLE拓展连不上蓝牙? - 创客硬件开发 - 清泛IT社区,为创新赋能!
...蓝牙?
这里统一说明一下:
一般先用硬件厂商提供的App 或者 nRF Connect App 进行硬件连接和测试,没问题再使用ai2 ble拓展开发。
如果测试没有问题,ai2 蓝牙连接处代码及具体的报错信息截图提供,具体问题具体分析。
MAC地址可以连上,硬件通信时提示无效的UUID? - 创客硬件开发 - 清泛IT社...
...E2:E0:5A:46:86:2F
使用MAC地址连接,一切功能正常。
这个 APP程序 使用透传UUID 还可以控制蓝牙模块的IO 口么?这个 APP程序 使用透传UUID 还可以控制蓝牙模块的IO 口么?透传uuid和io控制的uuid是不一样的,具体清参考:https://bb...
BLE通信数据不能超过20字节? - 创客硬件开发 - 清泛IT社区,为创新赋能!
...使用调用.WriteBytes
After a lot of hours I found the problem in my app.
How I proceeded:
1- At ESP32 code I put this line: BLEDevice::setMTU(192);
2- At app I put the call Request MTU on the .Connected block asking for the same 192 bytes;
In my case, when I have to send a payload < 23...
Want to find records with no associated records in Rails
...he contact into memory. The SQL request speed is the same, but the overall app benefit is much larger.
– chrismanderson
Mar 23 '17 at 0:09
2
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OAuth 2.0: Benefits and use cases — why?
...ent provider (e.g. Facebook, Twitter, etc.) to assure a server (e.g. a Web app that wishes to talk to the content provider on behalf of the client) that the client has some identity. What three-legged authentication offers is the ability to do that without the client or server ever needing to know t...
How to pass variable from jade template file to a script file?
...
Yes I got this working also by wrapping the local variable in the template in quotes and the #{} indicator.
– Askdesigners
Feb 11 '15 at 20:02
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使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...如:tokumx.conf (文件名随意)
内容如下:
logpath=/home/apps/tokumx/logs/tokumx.log
cacheSize=10G
oplogSize=10240
fork = true
port = 27017
dbpath=/home/apps/tokumx/data
replSet=ReplSetName
expireOplogDays=14
./mongod -f tokumx.conf 启动,可使用客户端工具MongoV...
Background task, progress dialog, orientation change - is there any 100% working solution?
...nCreate().
Here is a sample project demonstrating the technique.
Another approach is to ditch the AsyncTask and move your work into an IntentService. This is particularly useful if the work to be done may be long and should go on regardless of what the user does in terms of activities (e.g., downl...