# google/mozc-devices > Circuit diagrams and firmware source code for Gboard DIY keyboards, a collection of April Fools' hardware input devices from Google (drum set, Morse, magic hand, spoon bending, dial, conveyor belt, etc.). - Magnitude: 4.5 out of 10 — Breakout - Stars: 2,871 total · +0 stars today, ≈ 36 by evening - Star trust: star growth looks organic - Category: Hardware, IoT & robotics · Language: C++ · License: Apache-2.0 · Created: 2015-03-25 · Last push: 2026-10-01 - GitHub: https://github.com/google/mozc-devices · Page: https://gitnova.dev/en/r/google/mozc-devices ## Useful for - Build a DIY hardware keyboard from the provided schematics and firmware - Study C++ firmware examples for custom input devices - Recreate an April Fools' Gboard prototype as a hobby project ## Why it’s here - 0 stars so far today, about 37 expected by the end of the day. The usual pace is 0 per day, so that's 37× as much. - Over the last two days the pace is 6.8× that of the previous week and a half. - The spike has held for 3 days in a row — not a one-off blip. - Hacker News: “Gboard Conveyor Belt Version” — 24 points, 2 days ago. ## Star trust Star growth looks organic. Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer. ## Numbers - Forks: 179 - Issues and pull requests: 60 - Watchers: 68 - Average over the last week: 28 per day - Usual pace: 0 per day - Stars in the last hour (measured): 2 ## Stars per day, last 30 days (oldest → newest, today is partial) 2026-09-05 … 2026-10-04: 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 10, 61, 38, 52, 0 ## Hacker News - Gboard Conveyor Belt Version — 24 points, 3 comments: https://news.ycombinator.com/item?id=49927514 ## Spotted in now - Spotted on Hacker News ## More in this category 1. **facebookincubator/muse-gadget-sdk** — 7.9 · Early signal · Hardware, IoT & robotics · C · +0 stars today, ≈ 352 by evening SDK and firmware for building your own Muse gadgets on ESP32 or Linux: displays, buttons, sensors and audio that pair with the Muse app on iOS and Android. Full card: https://gitnova.dev/en/r/facebookincubator/muse-gadget-sdk.md 2. **hugelton/Felucca** — 4.7 · Early signal · Hardware, IoT & robotics · C · +0 stars today, ≈ 56 by evening Custom firmware for the M-VAVE FM-1 synthesizer: nine engines, four tracks, a 64-step sequencer, effects and a web editor. Installed over USB from a browser with no extra hardware. Full card: https://gitnova.dev/en/r/hugelton/Felucca.md 3. **ESPARGOS/esp-sdr** — 4.3 · Early signal · Hardware, IoT & robotics · C · +0 stars today, ≈ 41 by evening Firmware that turns the ESP32's built-in Wi-Fi radio into a software-defined radio (SDR): it captures raw I/Q samples and sends them to a computer over USB/UART for spectrum analysis. Supports most ESP32 chips, with 5 GHz reception on the… Full card: https://gitnova.dev/en/r/ESPARGOS/esp-sdr.md 4. **h0m3us3r/eSpDR** — 3.0 · Early signal · Hardware, IoT & robotics · C++ · +0 stars today, ≈ 20 by evening Streams raw baseband IQ samples from the ESP32-S3 radio to a Linux host at 80 Msps via an FPGA and USB 3, with lossless compression and integrity checks. It is a proof of concept for SDR receive experimentation. Full card: https://gitnova.dev/en/r/h0m3us3r/eSpDR.md 5. **ruvnet/RuView** — 2.9 · Steady · Hardware, IoT & robotics · Rust · +0 stars today, ≈ 66 by evening A Rust WiFi-sensing platform that uses CSI data from cheap ESP32 boards to detect presence, breathing, heart rate, activity and pose without cameras or wearables. Runs locally on edge hardware with Home Assistant, Apple Home, Google Home… Full card: https://gitnova.dev/en/r/ruvnet/RuView.md --- Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score. Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast. Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself. Data as of 2026-10-04 03:53 UTC, updated every 30 minutes.