High-Performance 64-bit General Development Board ODROID-C2

High-Performance 64-bit General Development Board ODROID-C2

Professional open-source development platform hardware supplier — Hardkernel has previously released a 64-bit high-performance general development board for global developers, this board, codenamed ODROID-C2, is priced at 40 dollars and is currently being publicly sold on its official homepage. (ODROID-C2) ODROID-C2 has a body size of 85 x 56 mm, weighs 40g, and uses the … Read more

Driving OLED Display with .Net nanoFramework on ESP32

Driving OLED Display with .Net nanoFramework on ESP32

This article introduces how to drive an ESP32 OLED display using .Net nanoFramework. We will start from the basics and gradually delve deeper, enabling you to understand and implement the entire process. Whether you are a beginner or an experienced developer, this article will be helpful to you. 1. Hardware Preparation 1.1 ESP32 Development Board … Read more

Raspberry Pi 400 Review: Faster CPU, New Layout, Better Cooling

Raspberry Pi 400 Review: Faster CPU, New Layout, Better Cooling

The Raspberry Pi 400 is essentially a Raspberry Pi 4 built into a keyboard. This great concept takes me back to my first personal computer. Of course, in the spirit of Raspberry, the complete kit is quite reasonably priced at around $100 (RMB: 660.8). Here are the details provided by Pi Hut: The Pi 400 … Read more

What to Do When Your Computer Only Fans Run After Booting?

What to Do When Your Computer Only Fans Run After Booting?

When you power on your computer and only the fans are running, with no response from the monitor, it certainly indicates a hardware issue. The best approach is to use a process of elimination to identify the problem. Here’s how: 1. Press the Caps Lock key on the keyboard. If the light turns on, it … Read more

Creating a Universal Calculator with ESP32: The Ultimate Tool for Multitasking

Creating a Universal Calculator with ESP32: The Ultimate Tool for Multitasking

Project Name: Multifunctional Mechanical Axis Scientific Calculator Project Author: shaoduan Introduction When you think I’m… using a calculator to do math? Actually, I’m… Playing Mario! Playing COTD! Playing Snake! Oh my, if I had this? Who could tell I’m slacking off? Project Description Back to the point! Thisslacking off toolcalculatoris made using ESP32. It is … Read more

Comparison of Open Source Hardware

Comparison of Open Source Hardware

Many large companies choose to keep their hardware closed-source, creating technological barriers and patent copyrights that hinder the development of small-scale innovators. Open source hardware allows entrepreneurs to more easily turn their ideas into reality. From left to right: Arduino Uno, BeagleBone, Raspberry Pi Arduino Uno is very common in the Maker community. Arduino comes … Read more

Arduino Uno R4: The Next Generation of Open-Source Hardware

Arduino Uno R4: The Next Generation of Open-Source Hardware

Produced by | OSC Open Source Community (ID: oschina2013) As one of the most popular open-source hardware on the market, the Arduino Uno R3 was launched back in 2010. After more than a decade, this hardware’s performance has become somewhat outdated. While everyone eagerly awaited, Arduino recently officially released the upgraded version of the Arduino … Read more

Driving Nokia 5110 Display with Arduino

Driving Nokia 5110 Display with Arduino

In this article, we will learn how to use Arduino to drive the Nokia 5110 display. Previously, I learned how to drive the Nokia 5110 display with Raspberry Pi to show system information. 1. Hardware Connection #define PIN_SCE 7#define PIN_RESET 6#define PIN_DC 5#define PIN_SDIN 4#define PIN_SCLK 3VCC 3.3VGng GroundBL 5V No additional resistors or capacitors … Read more