# Powar: emulating the Pokéwalker

> Powar emulates the Pokéwalker using a user-supplied ROM and EEPROM image. Its C source implements the CPU instructions used so far, EEPROM, LCD, buttons and some Timer W functions, with SDL2 builds for desktop and an Emscripten web interface. The author describes it as a prototype with major peripherals and DS connectivity unfinished.

- Type: Case study
- Targets: Firmware
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/UnrealPowerz/powar>
- Primary source: <https://github.com/UnrealPowerz/powar/blob/df3ca7ec82ea4e65703edce4fca20fd0b0b8a6da/README.md>
- Catalog page: <https://awesomerea.org/resources/powar-pokewalker-case/>
- Record JSON: <https://awesomerea.org/resources/powar-pokewalker-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/powar-pokewalker-case/index.md)

## Requirements & limits

- **Prerequisites:** Provide Pokéwalker ROM and EEPROM images named rom.bin and eeprom.bin.
- **Prerequisites:** Build with SDL2 and CMake on Linux, Visual Studio and vcpkg on Windows, or Emscripten for the web interface.
- **Limits:** RTC, accelerometer, most interrupts, sleep mode, IR communication and sound are unsupported.
- **License:** GPL-3.0.

## Primary sources

1. <https://github.com/UnrealPowerz/powar/blob/df3ca7ec82ea4e65703edce4fca20fd0b0b8a6da/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.