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Connecting sensors to the internet using an arduino and a raspberry pi

Shane Ormonde8 years ago8 years ago511 mins

As part of the PlantBot project, I wanted a way to look at sensor data over the internet. These sensors are moisture, light and pressure. The main one is moisture, the other two were just added in because I had the parts lying around. Here is a block diagram outlining each of the steps to…

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  • PHP

Making an updating graph using javascript and jpgraph

Shane Ormonde9 years ago9 years ago07 mins

This is a pretty cool way to update a graph on a webpage without having to refresh the entire page. Javascript is an easy language to get started in, today was my first time using it and within a few hours it was doing what I wanted. This stack overflow question was useful for my…

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  • MySQL
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Plotting data from a MySQL database using jpgraph

Shane Ormonde9 years ago8 months ago66 mins

First Step: Putting the jpgraph library on the server The jpgraph library can be downloaded from here. After it is downloaded put it somewhere on the server or local computer you are using it on. It doesn’t matter where you put it exactly. I put it in public_html/jpgraph on my server. There are loads of…

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  • PHP

Connecting Processing scripts to the Internet using PHP

Shane Ormonde9 years ago8 months ago04 mins

Click on the image to change the lines:     The above image is produced by a processing sketch. Each line drawn is given a random colour generated by a PHP program running on a web server. Each time the image is clicked, a PHP program running on the server generates 40 random numbers.The processing…

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  1. wattnotions on Messing about with trilaterationSeptember 27, 2023

    Not unnecessarily complicated enough :D

  2. Mikhail Grushinskiy on Messing about with trilaterationSeptember 26, 2023

    Why don’t you just use GPS with 2 cm accuracy which is achievable with RTKLib?

  3. Maria on Low power magnetic hold and release mechanismAugust 25, 2023

    From where i can read out more about it. Do you have any suggestive readings?

  4. Mikhail Grushinskiy on OpenWave – take 2May 28, 2023

    You would also need fast Fourier transform to find out waves frequently to use it as reference point to give…

  5. Mikhail Grushinskiy on OpenWave – take 2May 28, 2023

    You would need wind sensor real-time data. You would need to tilt compensate wind data from real time IMU data.…

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