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Controlling NeoMatrix with Processing This tutorial is a follow-up to the last NeoMatrix animation tutorial. We are using Processing to create images, videos or realtime interaction and push those to an 8x8 Adafruit NeoMatrix. Wiring WarningIf you have a bigg...

What is a Hall Effect Sensor? The hall effect sensor is a type of magnetic sensor which can be used for detecting the strength and direction of a magnetic field produced from a permanent magnet or an electromagnet with its output varying in proportion to the s...

What is Retropie? RetroPie allows you to turn your Raspberry Pi into a retro-gaming machine. It builds upon Raspbian, EmulationStation, RetroArch and many other projects to enable you to play your favourite Arcade, home console, and classic PC games with the ...

What is Raspberry Pi? Raspberry Pi is a series of small single-board computers. The Raspberry Pi project originally leaned towards the promotion of teaching basic computer science in schools and developing countries. It is widely used in many areas because of ...

Once your Raspberry Pi is imaged, it is ready to go! We have a more detailed tutorial for imaging the Pi. Now we can move on to configuration when you turn on your Pi for the first time. 1. Power up the Raspberry Pi When you plug in the power supply and all ot...

What is GPIO? GPIO stands for General-Purpose Input/Output. GPIOs have no predefined purpose and are unused by default. If used, the purpose and behaviour of a GPIO are defined and implemented by the user. You can find the GPIO pins on the top of most Raspberr...

What is relay? A relay is a switch that opens or closes electrical circuits when activated by a signal between low-powered digital electronics and high-powered devices. It is handy when the thing you want to control requires higher power (voltage/current) than...

What is Raspberry Pi Pico? The Raspberry Pi Pico is a microcontroller board developed by the Raspberry Pi Foundation. It was announced in January 2021 and represents a departure from the traditional single-board computers (SBCs) that the Raspberry Pi Foundatio...

Powering the Raspberry Pi Pico The easiest way to power a Pico is through the USB cable either to a computer or a phone charger. If you are going for a wireless design, you can use batteries as well. This tutorial will demonstrate how to power a Pico with a 9V...

Wifi Communication Before heading to communication between two pico, you can try controlling pico via wifi with your computer first, see tutorial here. Server Code Client Code

What is Wifi WiFi, short for Wireless Fidelity, is a technology that enables devices like smartphones, laptops, and other electronic gadgets to connect to the internet or communicate with each other without the need for physical cables. It operates by using ra...

Documentation of Pi War 2024 Pi Wars is an international, challenge-based robotics competition in which teams build Raspberry Pi-controlled robots and then compete in various non-destructive challenges to earn points. Planning We planned to build a four-wheel...

What is the OLED monochrome display? The OLED monochrome display is a small (tiny) and high-readability display. It is useful for displaying data, e.g. weather information or small graphics like what you see on Tamagotchi. For more information, please visit he...

What is TensorFlow? TensorFlow is an open-source machine learning framework developed by Google. It provides a comprehensive ecosystem of tools, libraries, and community resources for building and deploying machine learning models across a variety of platforms...

What is Grove Serial Bluetooth v3.0 Grove - Serial Bluetooth is an easy-to-use module compatible with the existing Grove Base Shield, and designed for transparent wireless serial connection setup. In this tutorial, we will be using two Grove Serial Bluetooth m...

What is MatrixPortal M4 The MatrixPortal M4 is a development board created by Adafruit designed to control RGB LED matrices. It is equipped with an ATSAMD51 microcontroller (Cortex M4) and has built-in Wi-Fi support thanks to the ESP32 coprocessor. Here are so...

How to use MatrixPortal M4 for animation We have another tutorial for setting up the MatrixPortal board and covering the basics. This tutorial will focus on creating an animation to display on a 64x32 matrix. CircuitPython and libraries versions In this tutor...

What is AVR ISP MKII? The AVRISP mkII is a USB-based In-System Programmer (ISP) used to program Atmel (now Microchip) AVR microcontrollers. It's designed for developers and hobbyists to upload firmware to AVR-based chips directly on a circuit board without nee...

We tested a few DFRobot sensors by following their tutorials. Before you jump into using these sensors, we have some tips for you. HX711 Weight Sensor This sensor can measure weight up to 1kg, and is compatible with Arduino, micro:bit, ESP32 and Raspberry Pi v...

What is Mosfet? A MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is a type of transistor used to switch or amplify electrical signals in electronic devices. It’s one of the most common components in electronic circuits, especially in digital and an...