The community’s public account records weekly shareable maker-related content, released every Friday～

Content is open-source, contributions or recommendations of related content are welcome.

Submission email: [email protected]

Images & Videos

bbLaser——Vector Laser Projector

▲ Click to watch

For a long time, community member @CoolCore bb wanted to create a vector laser projector (aka Laser Galvo Projector). Unlike regular TV projectors, its scanning method is vector-based, and the content played is also vector images.

The biggest advantage is that it can project images, animations, and text over extremely long distances. After a long period of research and exploration, @CoolCore bb produced this bbLaser, with both hardware and software being open-source! This is another annual masterpiece, with the engineering effort comparable to the previous bbPOV, and after meticulous effort, a relatively satisfactory effect has finally been achieved. Hope everyone enjoys it~Source^[1]

Arduino Nano Based Microbot

The author’s goal is to provide a relatively simple project for those who are just starting to engage with robotics.

The entire project is relatively inexpensive, requiring very few materials, and is easy to complete.

Once completed, you will have a palm-sized expandable robot platform that can be easily programmed in the Arduino environment.Source^[2]

Mind+WiFiBee-MT7681——WiFi Crawler

To enable remote control of the crawler, community member @CloudTeacher used the “IO Expansion & Motor Driver Shield”, “WiFiBee-MT7681”, and “MIT APP Inventor2”.

(Supports Arduino WiFi wireless programming) WiFiBee-MT7681 is a serial WiFi module based on MT7681, compatible with Xbee general interface, supporting Arduino Wi-Fi wireless program downloading, and is a product aimed at IoT, smart home, and other wireless control fields.Source^[3]

Pokémon Emulator

ArduinoGotchi is a Pokémon emulator that runs on Arduino UNO hardware. The core of this emulator is based on the highly optimized TamaLib, making it suitable for the UNO hardware, which has only 32K of flash memory and 2K of RAM.Source^[4]

ESPboy

ESPboy, a portable game console made with ESP8266.

Source^[5]

Three-Digit Nixie Tube Digital Display Module with SPI Interface

Features include:

• Used 4 circuit boards to simplify construction and testing work.
• PIC16F15344 microcontroller – 32MHz, with internal SPI bus.
• Operating voltage range of 2.3 to 5.5V.
• No level conversion circuit is required on the SPI bus—just run the microcontroller at the same voltage as the bus.
• Internal buck converter (6 to 12 volts input)—produces the 170 volts required for the Nixie tube.
• All high-voltage connections are internal, greatly reducing the risk of accidental contact.Source^[6]

A 64kB Arduino Computer

Creating a 64kB home computer based on Arduino Mega 256.

This is a retro project—using Arduino Mega256, 64kB of serial RAM, a monitor, and a keyboard to build a standalone computer.Source^[7]

A Cyberpunk Style LoRa Secure Communication Phone

This phone is designed for point-to-point secure chatting, driven by STM32, including a dedicated GNSS receiver for location sharing.

This device acts like a two-way pager, featuring real-time navigation and sharing of location, altitude, and attitude, among other advanced functions. However, its range is still quite limited, only a few hundred meters.Source^[8]

References