Discover a 25-minute conference talk recorded at Code BEAM America in March 2025 where Ray De Los Santos shares his journey learning Gleam, Erlang, and AtomVM to create a microcontroller framework for ESP32 and Raspberry PICO devices. Follow along as he discusses the tools and knowledge acquired while completing embedded hobby prototypes under this new framework, providing an overview of the created tools and simple code examples. Learn about the challenges of using the relatively young Gleam ecosystem and how running exported BEAM VM files compares to other approaches like Rust, C/C++, or Python for embedded programming. This presentation is ideal for those with minimal or no knowledge of embedded/microcontroller devices who are interested in using a type system language that runs on the BEAM VM for energy-efficient devices.