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Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/components/com_comprofiler/plugin/user/plug_cbjdownloads/cbjdownloads.php on line 49

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/components/com_comprofiler/plugin/user/plug_cbblogs/cbblogs.php on line 48

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/components/com_comprofiler/plugin/user/plug_cbarticles/cbarticles.php on line 47

Made in China

Deprecated: strtotime(): Passing null to parameter #1 ($datetime) of type string is deprecated in /var/www/html/templates/ja_allure/html/com_content/category/blog_item.php on line 57

Made in China

UWB+GNSS Indoor and outdoor integrated positioning module

CM52 series products are UWB+GNSS indoor and outdoor integrated positioning module solutions independently for indoor and outdoor fusion positioning market, including CM503B base station module and CM522T tag module, which supports the Channel 9 (7987.2MHz) frequency point required by the latest Chinese regulations by default.

Deprecated: strtotime(): Passing null to parameter #1 ($datetime) of type string is deprecated in /var/www/html/templates/ja_allure/html/com_content/category/blog_item.php on line 156

Deprecated: strtotime(): Passing null to parameter #1 ($datetime) of type string is deprecated in /var/www/html/templates/ja_allure/html/com_content/category/blog_item.php on line 57

<br />
<b>Deprecated</b>: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in <b>/var/www/html/templates/ja_allure/html/layouts/joomla/content/image/image.php</b> on line <b>38</b><br />

Made in China

Low power intelligent offline voice interaction MCU

SPV30 series is an intelligent MCU that focuses on low power consumption for offline human-machine interaction, with standby power consumption less than 20uA, voice wake-up standby power consumption less than 700uA, and working power consumption as low as 20mA. It is widely used in products with power requirements, such as TWS, intelligent wearable, single live wire switch and other applications.

Deprecated: strtotime(): Passing null to parameter #1 ($datetime) of type string is deprecated in /var/www/html/templates/ja_allure/html/com_content/category/blog_item.php on line 156

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Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/src/Menu/AbstractMenu.php on line 164

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 217

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 219

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 227

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 231

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 234

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 237

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 239

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100
mysqli object is already closed (500 Whoops, looks like something went wrong.)

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 496)

*
* @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:496) 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:496)
  at Joomla\Database\DatabaseDriver->__destruct()