To prepare an image database for training a neural network in object recognition, you need to recognize the images in the database yourself. This means giving them a label and a recognition zone. This tutorial follows on from the article Creating an image bank....
In this tutorial, we'll look at how to perform object recognition with TensorFlow and OpenCV, using a neural network pre-trained with deep learning. We saw in a previous tutorial how to recognise simple shapes using computer vision. This method only works for certain...
We present here a method for making a light backup and restoring a Raspberry Pi. Creating a backup, an image of your Raspberry Pi, is essential in the event of SD card corruption or power failure. On Raspberry Pi and other single-board computers, the SD card often...
In this tutorial, we'll look at how to program a smartphone application using React Native and VSCode. React Native is a powerful tool for creating cross-platform applications (Android, IOs) using the JavaScript language. Visual Studio Code is a code editor for...
In this tutorial, we'll look at how to recognize text from images using Python and Tesseract. Tesseract is a tool for recognizing characters, and therefore text, contained in an image (OCR, Optical Character Recognition). Installing Tesseract Under Linux To install...
The Raspberry Pi Zero microcomputer is very compact, with an integrated Bluetooth and WiFi module. Very easy to use, it is smaller but less powerful than the Raspberry Pi3. Microcontroller features The Raspberry Pi Zero microcontroller uses the ARM11 single-core...
The Raspberry Pi can be configured as a Wi-Fi Access Point. This is useful when the Raspberry Pi doesn't have access to a wifi network and you want to connect to it locally. In this tutorial, we'll look at how to configure the Raspberry Pi to generate its own WiFi...
To test and use the MQTT protocol, you can install an MQTT server with Mosquitto on a Windows or Linux computer. A common application is to install Mosquittoon a Raspberry Pi and use it as an MQTT server for IoT and home automation. MQTT protocol description MQTT...
It's possible to plot curves in real time on a web app using Chart.js. When you create a web app, you're bound to want to display data. The Chart.js library integrates with your html files and JavaScript scripts to plot data from sensors, files or databases. To test...
Whether you're doing electronics, mechanics or any other kind of tinkering, you need a number of essential tools. Whether for safety, speed or precision. Notebook and pencil Yes, yes, I swear! We couldn't think of a better way to lay down ideas, record measurements,...