Bluetooth蓝牙技术

拥有超多功能微芯片AVR-IoT WG开发板，简化了安全数据传输到谷歌云，我们收到了大量很棒的项目想法提交。每一个概念都是惊人的，真实世界的项目给我们留下了深刻的印象。奖金相当高，第一名是2019年微芯片大师大赛的参赛作品，第二名和第三名由强劲的硬件包组成，包括Arduino Uno、Curiosity PIC32MZEF开发板和大量的好东西。

我们感谢并喜爱所有的参赛作品，以下是我们的获奖者!

Mohamed Lanjri El Halimi凭借一款令人印象深刻的物联网工业监控设备获得了一等奖。这个物联网孵化器非常酷，可以很容易地集成到工业环境中。

Al Watt凭借一款巧妙的家用中央供暖散热器效率优化器获得二等奖，这款产品确实让它赞叹不已。它可以记录散热器的输入和输出温度，是一个漂亮的DIY智能家居设备。

最后，总是很有创意的Dane和Nicole(又名8bitsandabyte)将他们的AVR-IoT WF开发委员会与Pick-a-plant(采摘植物)一起使用，这是一种帮助你为你的位置选择最佳植物的设备。因此，妮可和戴恩获得了三等奖。看看这些奇妙的项目，以及其他优秀的微芯片项目。请继续关注蓝牙网站上更多的竞赛、教程和新闻报道!

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2019 Microchip 物联网竞赛

物联网孵化器

开发平台: Microchip
许可协议: GNU General Public License, version 3 or later (GPL3+)

项目简介

基于云决策的工业物联网终端

阅读全文...

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Error

HTTP 500 Whoops, looks like something went wrong.

mysqli object is already closed

Exception

Error

in /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php (line 318)

*/
public function disconnect()
{
// Close the connection.
if (\is_callable([$this->connection, 'close'])) {
$this->connection->close();
}
parent::disconnect();
}

in /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php -> close (line 318)

*/
public function disconnect()
{
// Close the connection.
if (\is_callable([$this->connection, 'close'])) {
$this->connection->close();
}
parent::disconnect();
}

in /var/www/html/libraries/vendor/joomla/database/src/DatabaseDriver.php -> disconnect (line 495)

*
* @since 2.0.0
*/
public function __destruct()
{
$this->disconnect();
}
/**
* Alter database's character set.
*

DatabaseDriver->__destruct()

Stack Trace

Error
Error: mysqli object is already closed at /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318 at mysqli->close() (/var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318) at Joomla\Database\Mysqli\MysqliDriver->disconnect() (/var/www/html/libraries/vendor/joomla/database/src/DatabaseDriver.php:495) at Joomla\Database\DatabaseDriver->__destruct()

Error

Error:
mysqli object is already closed

  at /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318
  at mysqli->close()
     (/var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318)
  at Joomla\Database\Mysqli\MysqliDriver->disconnect()
     (/var/www/html/libraries/vendor/joomla/database/src/DatabaseDriver.php:495)
  at Joomla\Database\DatabaseDriver->__destruct()