As a journalist, I have rewritten the article to create a new unique piece that showcases the creativity and ingenuity of [Lambert the Maker]. Here is my version:
[Lambert the Maker] was inspired by the Arduboy to create an LED matrix business card that would serve as a unique means of sharing personal information. He saw the potential in remixing the traditional OLED screen into an 8×8 LED matrix, which would add a touch of elegance and creativity to his business card design. Already having a PCB business card for work, [Lambert] recognized its limitations and decided to incorporate functionality into his new creation.
The heart of this innovative project is an STM32F0 microcontroller, which powers the LEDs on the card. However, programming these LEDs required finesse, as indicated in the datasheet that specified that the maximum current through a GPIO pin was only 30 mA. To ensure proper functionality, [Lambert] designed his code to turn off one LED at a time before turning on another, ensuring that each previous LED was properly turned off. This approach allowed him to refresh the entire LED matrix every 125 ms, creating an illusion of smooth animation through persistence of vision.
To demonstrate his project’s capabilities, Lambert created videos showcasing both versions of his Snake-playing business card. The first prototype was developed in 2020 when green PCBs were offered with assembly services by board houses. By 2024, board houses had expanded their color options beyond green, allowing for more customization opportunities.
Version two of Lambert’s LED matrix business card features small buttons for user input instead of capacitive touch pads and is thinner than a credit card. Additionally, he incorporated a floating ADC pin that acts as a random number generator, ensuring that the apple in Snake appears in a new location each time the game is started.
Overall, Lambert’s creativity and ingenuity shine through in this unique business card design that combines both style and functionality while also providing users with an interactive experience.
In conclusion, [Lambert’s] innovative idea to transform an Arduboy into an LED matrix business card has resulted in an impressive creation that serves not only as a means to share personal information but also as a unique source of entertainment through its Snake-playing game feature. With its incorporation of small buttons for user input and floating ADC pin acting as random number generator
