Source: Circuit City

Editor: strongerHuang

Arduino is a convenient, flexible, and easy-to-use open-source electronic prototyping platform. It is very easy for beginners to master while providing enough flexibility. Arduino is not only the most popular open-source hardware globally but also an excellent hardware development platform and a trend in hardware development. With Arduino, we can easily create many interesting electronic designs. Here are 8 open-source projects from Circuit City for you to try out.

1. Play with Arduino: Build an Arduino Alarm Clock

My project is an Arduino alarm clock. I wanted to see if I could make a functional alarm clock using just an Arduino board and an RTC. Initially, the numbers only appeared on the serial monitor because I struggled to get the LCD display to light up. I wanted to take it step by step so that I could fully understand what was happening.

The detailed information about this project is organized in the attachment. If you’re interested or have a need, you can refer to it for your reference!

https://www.cirmall.com/circuit/10857

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https://www.cirmall.com/circuit/5402

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https://www.cirmall.com/circuit/4125

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https://www.cirmall.com/circuit/10227

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5. Mini Arduino JukeboxMy underground rock band is reuniting after 20 years, and I decided to create a mini jukebox with some “clicks” using an Arduino Nano, DFPlayer Mini, speaker, three buttons, and a 16×2 LCD display. For my case, I am attaching the STL files. The original idea was to create a jukebox-like box, but I didn’t have time. For the LCD display, get an I2C interface, so only 2 signal cables, 5V, and ground are needed.

https://www.cirmall.com/circuit/10348

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6. DIY Arduino Multifunctional Power MeterIn this tutorial, I will show you how to make an Arduino-based multifunctional power meter. This small meter is a very useful device that displays important information about electrical parameters. The device can measure 6 useful electrical parameters: voltage, current, power, energy, capacity, and temperature. The device is only suitable for DC loads, such as solar photovoltaic systems. You can also use this meter for battery capacity measurements. The voltage range that the meter can measure is 0-26V, with a maximum current of 3.2A.

https://www.cirmall.com/circuit/18440348

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7. Arduino Retro Arcade ClockBuild an interactive arcade bedside clock with a touchscreen and animated arcade digits, allowing you to record your chosen alarm sound. This project includes a 3D printed case and four separate programs to choose from: 1. Arcade Clock – DK Mario, Space Invaders, and Pac-Man animations; 2. Pac-Man Clock – Interactive animation Pac-Man game with clock function; 3. DK Clock – Interactive animation DK game with clock function; 4. Tumble Ghost – Flappy Bird-based animated Pac-Man ghost game. A lot of fun for those who love to relive the nostalgia of 80s arcade game characters and a great gift.

https://www.cirmall.com/circuit/10305

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8. Arduino LED Dice, Shake It Up!Dice remains a perfect beginner project. This function is well-known and easy to understand. Almost everything has a ready-made component. When looking for an Arduino or Raspberry Pi starter kit, it’s best to see this. Components like LEDs, buttons, and any type of sensors are built onto the circuit board, so they can be connected and used with GPIO through a few wires. Simple but sufficient 3D printers are available on eBay for under 140 euros. Almost all mounts, installations, or case variations can be created with it.

https://www.cirmall.com/circuit/11491305

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