Store and visualize sensor data in SQLite

Store sensor data with SQLite

Very often as part of an Orange Pi or Raspberry Pi project involving sensors, it is useful to store the sensor data in some kind of way or another. A good way to store the data is in a database that you can manage and query. SQLite is a popular embedded database management system. SQLite comes in the form of a C library. Due to it’s low footprint on resources, it fits well with a device such as a Raspberry Pi or the Orange Pi.

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Ultrasonic distance sensor

Connect the ultrasonic sensor to the Orange Pi

In this tutorial we will learn how to connect a HC-SR04 ultrasonic range sensor to the Orange Pi. This sensor measures distance from the sensor to an object by using ultrasounds. This is similar to how animal echolocation works, for example bats navigating in total darkness. Also, it’s how the submarine’s sonar detects objects under the sea.

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Install Hadoop on the Orange Pi

Install Java on Orange Pi

Let’s put the yellow elephant on the Orange Pi! Hadoop is a framework for distributed data storage and processing used in big data applications. We will set up a single node Hadoop cluster on the Orange Pi. This may or may not be practical in a production environment, but it’s a good way to learn to configure Hadoop, load a file on the hdfs and run a MapReduce job.

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How to install Armbian on Orange Pi Plus 2e

Armbian on the microSD

You just got your own Orange Pi and you want to start developing your ideas. But before that, you need an operating system. In this post I will show how to install Armbian on the Orange Pi. Armbian is a Debian based operating system which targets the ARM architecture.

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