# joeycastillo/sensor-watch

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_How this analysis was created: the description and tags below were written by an AI model that read this project's README and public documentation pages; stars, license and language come straight from the GitHub API. The model does not read the source code._

1,984 stars · 304 forks · C · NOASSERTION

## Links

- GitHub: https://github.com/joeycastillo/Sensor-Watch
- awesome-repositories: https://awesome-repositories.com/repository/joeycastillo-sensor-watch.md

## Description

Sensor-Watch is an open-source programmable replacement circuit board that transforms a classic digital watch into an extensible wrist-worn development computer. It functions as an embedded firmware development kit, providing the toolset needed to compile and install custom C software onto resource-constrained microcontrollers through a standard bootloader mechanism. 

The platform supports peripheral pin multiplexing to route analog, digital, and communication signals through a physical multi-pin expansion interface connected to the core processor. This enables the integration of custom peripheral boards and external hardware sensors, alongside segmented LCD frame buffering that maps virtual display segments directly to hardware memory addresses.

Development workflows include a browser-based hardware simulator that runs compiled runtime logic to simulate low-level microcontroller peripherals and screen output locally. User interface components are structured as modular watch faces using interchangeable state machines that hook into a central event loop, allowing developers to verify visual modifications before deploying binaries to physical hardware.

## Tags

### Hardware & IoT

- [Open-Source Wristwatch Platforms](https://awesome-repositories.com/f/hardware-iot/open-source-wristwatch-platforms.md) — A programmable replacement circuit board that transforms a classic digital watch into an extensible wrist-worn development computer with hardware sensors.
- [Embedded Development Kits](https://awesome-repositories.com/f/hardware-iot/embedded-development-kits.md) — Acts as an embedded development kit for compiling and installing custom software onto microcontrollers.
- [Pin Multiplexing Optimizations](https://awesome-repositories.com/f/hardware-iot/connectivity-iot/hardware-communication/hardware-pin-mappings/pin-multiplexing-optimizations.md) — Routes analog, digital, and communication signals through a physical multi-pin expansion interface.
- [Analog Sensor Interfacing](https://awesome-repositories.com/f/hardware-iot/embedded-robotics/sensor-processing/analog-sensor-calibration/analog-sensor-integrations/analog-sensor-interfacing.md) — Links custom peripheral boards through a multi-pin connector supporting power, digital, and analog signals. ([source](https://github.com/joeycastillo/sensor-watch#readme))

### Operating Systems & Systems Programming

- [Custom Firmware Bootloaders](https://awesome-repositories.com/f/operating-systems-systems-programming/custom-firmware-bootloaders.md) — Compiles and installs custom software onto a wrist-worn computer using a standard bootloader mechanism. ([source](https://github.com/joeycastillo/sensor-watch#readme))
- [Firmware Development Toolkits](https://awesome-repositories.com/f/operating-systems-systems-programming/kernel-core-internals/boot-startup-management/bootable-image-executors/bootloader-configurators/firmware-development-toolkits.md) — Provides a toolset for writing and installing custom software onto a wrist-worn computer.

### Programming Languages & Runtimes

- [Native Binary Compilers](https://awesome-repositories.com/f/programming-languages-runtimes/python-compilers/native-binary-compilers.md) — Translates custom C-based embedded code directly into optimized binary instructions for deployment.

### User Interface & Experience

- [LCD Segment Displays](https://awesome-repositories.com/f/user-interface-experience/lcd-segment-displays.md) — Maps virtual display segments directly to hardware memory addresses to render custom graphics on constrained screens.

### Software Engineering & Architecture

- [Modular State Architectures](https://awesome-repositories.com/f/software-engineering-architecture/modular-architectures/modular-state-architectures.md) — Structures user interface components as distinct state machines that hook into a central event loop.

### Testing & Quality Assurance

- [Pre-Deployment Hardware Simulation](https://awesome-repositories.com/f/testing-quality-assurance/pre-deployment-hardware-simulation.md) — Provides a web-based environment for simulating and testing custom digital watch faces locally.
- [Watch Mode Runners](https://awesome-repositories.com/f/testing-quality-assurance/watch-mode-runners.md) — Simulates watch faces inside a browser environment to verify visual modifications before deploying to hardware. ([source](https://github.com/joeycastillo/sensor-watch#readme))

### Web Development

- [Simulated Browser Environments](https://awesome-repositories.com/f/web-development/headless-browser-emulation/simulated-browser-environments.md) — Simulates low-level microcontroller peripherals and screen output directly inside a web browser environment.