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Xiaojing Ma
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randymxj.com
randymxj.com

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“Automatic To Smartthings” is a fully loaded package to have the Automatic OBD2 Adapter integrated with Smartthings. Immediately push every Automatic event update to Smartthings Provide a new device type on Smartthings as a Presence Sensor Display…
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AWS IoT Button was introduced by Amazon as the developer version of it’s dash button. The AWS IoT Button allows user to associate with an AWS Lambda instance to run some code snippet while press the button – either play with other AWS service such…
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See Google Quickdraw - how neural net recognize your drawing
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Introducing a WordPress Plugin: WP-Versions (https://github.com/randymxj/WP-Versions) Living Demo WordPress Version: [get_wp_version] Php Version: [get_php_version] Host Version: [get_host_version] Installation Copy the wp-versions folder into…
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We might see this during a “apt-get upgrade” command on Ubuntu: Calculating upgrade... Done The following packages have been kept back: linux-cloud-tools-virtual linux-generic linux-headers-generic linux-image-generic linux-signed-generic…
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Check for Mongodb systemctl status by: sudo systemctl status mongod Enable the Mongodb Autostart/upstart with system start up: sudo systemctl enable mongod Note: if both of the commands returning a service not found message, then check if the service…
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Follow instruction at Smartthings to create and configure the SmartApp. Follow the document to subscribe the things event. An example at github shows a sample code snippet of a working SmartApp – provides a HTTP GET API interface to list all the available…
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Here is an instruction of using Node.js to send JSON data payload to a client device with Google Firebase Cloud Message service. Setup and Configure Google Firebase on the client device (Android, iOS). Locate and note the client device token, and the…
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Announcing the AWS IoT button: simplest dev kit to control connected stuff via Lambda and AWS IoT. Available now! http://oak.ctx.ly/r/4n3ol
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The primary target for this article is to install the mongodb C++ driver for development with C++ projects. There is a newer branch C++ 11 based driver at this point but it’s better to start with the stable legacy one. In a normal fresh Linux system the…
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