Making a trading Gameboy: A pocket exchange and algo trading platform

The author recounts their journey of creating a market-making game using a Raspberry Pi Pico microcontroller, initially inspired by their child's interest in a Raspberry Pi. They explore the transition from simple LED projects to an advanced trading game that simulates the dynamics of market-making, including quoting bid and ask prices and managing risk in ETF markets. Through this process, the author delves into hardware and software development, employing tools like PCB design for hardware improvements and refining the software with asynchronous programming and multiprocessing for efficiency. They also discuss challenges like memory management and button debouncing, offering insights into solutions like precompiling and using interrupts. The project culminates in real-time data visualization using QuestDB and Grafana, providing a practical understanding of market-making and highlighting the versatility of the Raspberry Pi Pico and micropython in handling complex tasks. The experience enriches the author's appreciation of hands-on creation and the potential of microcontrollers, 3D printing, and CAD design, opening new perspectives on problem-solving.

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