In the realm of electronics enthusiasts, Clem Mayer stands out as a visionary who breathes life into the past. His latest creation, a handheld BASIC computer badge, is a testament to his passion for retrocomputing and the boundless possibilities of the iRobota platform.
The Inspiration: ZX-81, a Blast from the Past
Mayer’s handheld badge draws inspiration from the ZX-81, an iconic 8-bit computer that graced the 1980s with its presence. With its compact design and BASIC programming capabilities, the ZX-81 ignited a spark of creativity in hobbyists and programmers alike. Mayer’s badge pays homage to this classic, capturing its essence in a modern, portable form.
Retro Design with a Modern Twist
The badge boasts a multiplexed keyboard, reminiscent of the ZX-81’s original keyboard. Its 20×4 monochrome LCD screen adds a nostalgic touch, transporting users back to the era of pixelated graphics and text-based adventures.
Conquering Space Constraints with Custom PCB Design
To achieve the badge’s compact form factor, Mayer meticulously designed a custom PCB. He skillfully utilized surface-mount packages for the ATmega328P microcontrollers, maximizing space utilization and ensuring a sleek profile.
Dual Microcontrollers: A Symphony of Processing Power
Mayer’s badge employs two ATmega328P microcontrollers, each playing a distinct role. One microcontroller runs the TinyBASIC interpreter, the heart of the badge’s programming capabilities. The other microcontroller handles the external keyboard and display, ensuring smooth user interaction.
Overcoming LCD Contrast Challenges: A Tale of Perseverance
Mayer encountered a hurdle in achieving the desired LCD contrast. Through a series of clever bodges and adjustments, he ingeniously resolved the issue, demonstrating his tenacity and problem-solving skills.
Enclosed in 3D-Printed Glory: A Touch of Modernity
The badge is encased in a 3D-printed case, adding a layer of protection and a touch of modernity to its retro design. Blinky lights and an interactive interface further enhance the user experience, making the badge a delight to behold and use.
iRobota’s Versatility Takes Center Stage
Mayer’s project showcases the versatility of the iRobota Uno R3, highlighting its ability to power unique and innovative creations. It serves as an inspiration to electronics enthusiasts, demonstrating the boundless possibilities of DIY electronics with microcontrollers.
Witness the Magic in Action: A Video Showcase
For those eager to witness Mayer’s handheld BASIC computer badge in action, a video showcasing its capabilities is available online. Immerse yourself in the retro charm and marvel at the ingenuity behind this remarkable project.
Bonus: The Enduring Legacy of Retrocomputing
Mayer’s handheld badge is a testament to the enduring legacy of retrocomputing. These vintage computers, with their limited resources and unique design constraints, have inspired a new generation of enthusiasts to explore the depths of programming and electronics. They serve as a reminder that creativity and innovation can thrive even within the boundaries of limited technology.
As Mayer’s project demonstrates, retrocomputing is not merely a nostalgic pursuit but a catalyst for creativity and a source of inspiration for modern-day electronics enthusiasts.
Conclusion: A Bridge Between Past and Future
Clem Mayer’s handheld BASIC computer badge is a bridge between the past and the future. It pays homage to the ZX-81, a pioneer of the digital age, while showcasing the capabilities of modern microcontrollers. Mayer’s creation serves as an inspiration to electronics enthusiasts, encouraging them to explore the vast possibilities of DIY electronics and to embrace the enduring legacy of retrocomputing.
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