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创建并发送BLE蓝牙广播 - 创客硬件开发 - 清泛IT社区，为创新赋能！
在MIT App Inventor社区的一篇帖子中，用户尝试使用最新的BLE扩展来创建和发送蓝牙广播，但遇到了一些问题。Evan Patton指出，Android的BLE子系统需要使用16位UUID，并提供了一个测试版的BLE扩展，解决了广播发送失败的问题。
以下...
【客户反馈】增加直接改项目名称的功能 - 用户反馈 - 清泛IT社区，为创新赋能！
...了，编译通过。 rename后再另存，就不行。
修复中。。。App Inventor 2 发表于 2024-08-30 09:29
rename 没有真正改名，编译仍然失败
另存为 是彻底改了，编译通过。 rename后再另存，就不行。
修复中。。 ...
改名功能...
MQTT支持获取设备端的在线状态吗？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
mqtt拓展支持获取设备端的在线状态吗？这里仅仅提供一个思路：
设备状态是设备的一项数据，这个也需要设备上报其状态数据给app端，类似网络的心跳包，定时上报状态数据，一定时间没取到数据就认为设备离线。
micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...错了。
运行故障
java.lang.ExceptionInInitializerError at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribeBluetoothLEint.java:357) at
edu.mit.appinventor.ble.BluetoothLEintSBLEReadOperation.run(BluetoothLEint.java:325) at android.os.Handler.handleCallback(Handler.java:1013) ...
How exactly do Django content types work?
...en models. Blah blah, let's dive into some code and see what I mean.
# ourapp.models
from django.conf import settings
from django.db import models
# Assign the User model in case it has been "swapped"
User = settings.AUTH_USER_MODEL
# Create your models here
class Post(models.Model):
author = m...
Return HTTP status code 201 in flask
...sk import Response
> return Response("{'a':'b'}", status=201, mimetype='application/json')
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PCH File in Xcode 6
... buttons)
Project > Build Settings > Search: "Prefix Header".
Under "Apple LLVM 7.0" you will get the Prefix Header key.
Type file directory. e.g: "$(SRCROOT)/$(PROJECT_NAME)/ProjectName-Prefix.pch".
Clean project: ⌘cmd+⇧shift+K
Build project: ⌘cmd+B
...
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 is Docker different from a virtual machine?
...istine copy of the database and will make changes to the data. The classic approach to this is to reset the database after every test either with custom code or with tools like Flyway - this can be very time-consuming and means that tests must be run serially. However, with Docker you could create a...
Re-enabling window.alert in Chrome
...
For our application there are over 150 confirm windows that rely on the synchronous native confirms. We are planning on changing it, but that would result in us spending two weeks to go through each one of these cases. Plus testing,...