Spline Chart for IoT Sensor Data with Johnny-Five

The text outlines a tutorial for creating a hardware-to-software application that streams air pressure sensor readings to a real-time dashboard using a spline chart. The application consists of two main parts: the server side, which operates on a microcontroller to collect and transmit data, and the client side, which displays the data on a live-updating chart using the EON framework. The server side uses JavaScript with Johnny-Five and PubNub packages to gather sensor data every 100 milliseconds and publish it to a channel, while the client side employs an HTML file with embedded JavaScript to receive data and generate a time-series chart. The tutorial provides step-by-step instructions, including setting up the necessary npm packages, obtaining unique PubNub keys, and configuring the chart's axes and flow, enabling users to visually monitor sensor data in real time.

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