The idea of this project has been on my mind for a while. The question of what if we can use our environment as a technology canvas motivates me to start experiment with this project. Luckily today we have an amazing device such as Raspberry Pi to use as a brain of the system….
In this project we see how to build a device that detects maturation stages based on color with a neural network model. As fruits and vegetables ripen, they change color due to the four families of pigments: chlorophyll (green), carotenoids (yellow, red, orange), flavonoids (red, blue, purple), betalain (red, yellow, purple). These pigments are groups…
If you have a circular saw you probably use a tape measure every time you want to cut a piece of wood and make pencil marks after you find the desired length. In this project we will see how to simplify the process by creating a device that accurately measures cuts every time. You won’t…
The oximeter is a tool that allows you to calculate the percentage of oxygen saturation in the blood based on the amount of light absorbed. It consists of a photodiode and two LEDs: a red LED and an infrared LED. To make the measurements, the fingertip is placed between the photodiode and the LEDs as…
The idea for this project came to its creator when he began researching the principle behind commercially available pet dispensers; these all work the same and the difference in monetary terms depends on the controller used. An important point though is that these purchasable food dispensers are generally designed for specific applications, for example the…
We develop and test applications with the Pro midi 1284P board. Recently we have introduced and described a new prototyping board called PRO midi 1284, based on an ATmega 1284P microcontroller; after this presentation, made in a previous post, we start to work with it and we explain how to interface it in…
This project was inspired by the vision of a real boat equipped with various sensors capable of measuring the depth of the seabed; we therefore thought of building an autonomous small-scale boat to perform the same tasks. This could be equipped with the necessary sensors and programmed to guide you along a desired path and…
In this project we will see how to build a professional quality seismograph, completely open source, based on Raspberry-Pi and able to record earthquakes or other seismic events, natural (rockfall, glacier movement) or artificial (train detection, detection of vehicles). The seismograph works autonomously in the field, or it can be used as a seismic station….
It is halfway between an Arduino Mini (in size) and an Arduino Mega in terms of computational capacity, available memory and integrated peripherals. Since the creation of the Arduino project and the subsequent spread of the original boards, the electronics industry and especially the nascent electronics industry for Makers, has moved in two directions:…
Equipped with an SD card and RTC, it detects and stores temperature, humidity and barometric pressure using a combined sensor, showing the data graphically on a touch display. Nowadays, also and above all in environmental monitoring, we are moving towards connected solutions and more and more integrated into the IoT concept, but not…
Lots of components to make applications that can be programmed with Arduino and assembled like LEGO bricks. How many times did you dream of building something with LEGO bricks when you were a child and see it moving, animated, perhaps integrating a certain amount of programmable electronics to keep up with the times?…
Let’s interface our Energy Meter with Internet to bring measurements to the ThingSpeak platform and see the results in convenient graphs. A few posts ago, we introduced the MCP39F511 integrated circuit, capable of performing electrical measurements in single-phase electrical systems through the FT1346M board. We have integrated it with the GSM board and…
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