#Embedded
200
2026-09-19
Show HN: Cactus Needle 3: 8-29MB automation models can match DeepSeek V4 Flash
S
Hey HN, Henry from Cactus here. We submitted Needle 2 here a few weeks ago, and the feedback in the discussion thread was incredibly valuable, thanks! Thanks to all that feedback, we’ve been able to move quickly to release Needle 3 and I'd love to hear what you think again. The key features: 1) Automation (tool calls & structured JSON output): Needle still doesn't chat by design, its quite challenging to pack general capacity into such small models, so we focus on tool calls and structured JSON. If no tool you declared fits the request, you get an empty list back (note for when playing with the demo). 2) Intelligence Laddering: Every layer (2 to 20) is a deployable subnetwork, so one set of weights, 25 to 121 million parameters at 2-bit, shipping as 8-29MB binaries. On a Raspberry Pi 5 it decodes at up to 4k tokens/sec and prefills at up to 10k. 3) Monarch Hadamard MLP: replaces the dense FFN with three learnable Walsh-Hadamard-initialized Kronecker (Monarch) factor pairs interleaved with per-channel diagonal scales, fixed permutations, a SiLU nonlinearity, and a rank-8 input-conditioned gate, so each token gets a fully mixed nonlinear transform of its d_model channels at O(d√d) parameters and compute instead of the O(d²) a dense 4x-expansion MLP would cost. 4) Performance: On Mobile Actions (phone commands, scored on the exact call) the 20-layer model gets 86.0 through the shipped 2-bit binary; LFM2.5 1.2B is at 82.4, Qwen3.5 0.8B at 76.0, Apple's on-device model at 57.6, all at f16. More results on the link, we do not win everywhere ofc. 5) Multilingual: Needle 3 now supports English, French, Spanish, German, Dutch, Italian, Polish, with more languages coming. 6) Finetuning: You can achieve DeepSeek v4 Flash grade performance on a narrow task with just 4L, stress on "narrow task", we found that production users often prefer tuning before production. 7) Triggers: Grounding is a common challenge for tool call, at least for Needle 2, so we added support case-insensitive regular expressions matched against each request to gate false negatives. 8) Confidence: Every response also carries a calibrated confidence score, the minimum of a judgement on the finished call and its decode probability. Act above your threshold, show the call and ask below it, or escalate to a bigger model. 9) Supported Platforms: macOS, Linux on x86-64, ARM64, ARMv7, RISC-V and MIPS32, Windows x64 and ARM, Android, iOS, watchOS, tvOS, the browser as WebAssembly, and a WASI component. Thanks for reading and as always, thoughts appreciated!
2026-09-16
Show HN: An e-ink frame that hears birds and draws them as 1800s illustrations
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See also: Avian Visitors - https://news.ycombinator.com/item?id=48343424 - May 2026 (20 comments)
2026-10-01
lokutor-ai/oido
A
Oído: open-vocabulary speech recognition that fits in a $5 ESP32-S3. 3.7% LibriSpeech WER, no cloud, no NPU.
2026-10-28
jlcjak/neurband
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Open, minimal sEMG wristband like the Meta Neural Band: 8-ch ADS1298 + nRF52832 BLE, dry gold electrodes on a flex, 3D-printed band. KiCad, FreeCAD, Zephyr, Python, simulations.
2026-08-31
ShowMeTheStack/usystem-8086
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A cycle-accurate 8086/8088 computer you build chip by chip, wire by wire — in a single HTML file. Boots FreeDOS.
2026-10-10
0xdeadf1sh/AssemblyForNeovim
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Small lua script that shows inline assembly in neovim (x64, aarch64) for C, C++, and Rust.
2026-11-04
yzytz17/1.5-joint-module
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Ultra-low-cost robotic joint: a $1.5 FOC board inside a 1503 gimbal motor, plus a 3D-printed high-ratio precision gearbox. Cheap power, exact motion.
2026-09-18
HuskerMinion/techo5-dot
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Linux firmware for the Echo Dot (2nd gen): no Fire OS, no Alexa. A local Home Assistant voice satellite with all seven mics, Bluetooth speaker mode, signed A/B updates and SSH.
2026-11-04
nathanmarlor/flightscope-public
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Handheld Raspberry Pi flight tracker for a young plane-spotter: live map, plane photos and routes, a logbook, ADS-B antenna fallback and a 3D-printed case
2026-10-21
andrisgauracs/whistle-esp32
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Whistle speech-to-text running fully on an ESP32-S3: hold a button, say a colour in one of 7 languages, the LED does it. No network.
2026-10-15
ananhq/anan-iphone-use
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ESP32 MCP firmware for iPhone USB input, built for M5Stack StopWatch with guided board adaptation
2026-11-03
iharhl/memmap
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Turn a YAML memory layout into a datasheet-style memory map. Validates addresses, sizes and flash sectors, then renders SVG, PNG or PDF.
2026-09-11
fromgof/TridentVision
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Implement yolov26m using a complete FPGA, without any C language code. Requires 160K LUTs and 386 DSP cores (based on Xilinx XC7K325T).
2026-11-05
EEVblog/121GW-Multimeter-Firmware-RE
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EEVblog 121GW multimeter firmware (v2.05) reverse-engineered into plain C. Builds with GCC and CMake, matches the original in emulation, and is tested on the meter.
2026-10-29
KramerTech/gen5-RearDashcam
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Records the backup camera feed to a flash drive plugged into the head unit and adds an app for playback on the car's screen.
2026-10-27
ngxson/esp32-usb-to-airprint
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Add AirPrint / AirScan support to your old printer, using just a cheap ESP32-S3
2026-10-24
4noha/diy-fido-key
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DIY USB FIDO2 security key on ESP32-S3 (pico-fido + ST7735 status display)
2026-10-04
SP8ESA/ESP32-DATV
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DVB-S digital amateur TV transmitter using a bare ESP32-C3 — up to 1 MSymbol/s QPSK, 8PSK, 16APSK in the 13 cm band, with no additional RF hardware.
2026-10-01
BlackHole1/passportsim
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Develop and debug FoloToy AI Passport firmware without the device: an ESP32-C3 emulator that runs unmodified ESP-IDF images in the browser (WebAssembly) or on macOS and Windows, with a CLI and an MCP server for AI agents.
2026-09-05
Show HN: Open-Source eInk Bike Computer
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Hey all, i just launched my Eink Bike computer project and think it is cool. Another tidbit, in the crazy things that AI has done... It has helped create a ANT (common sensor wireless protocol used in workout/biking) implementation for ESP32 by messing around with undocumented registers: https://github.com/RaemondBW/esp32-ant
2026-10-23
sthetix/JoyOff
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A simple Nintendo Switch homebrew app that puts original Joy-Con controllers into shipment low-power mode and disconnects them.
2026-10-04
mahdamin/esp-idf-injection-ng
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Raw 802.11 frame injection on ESP-IDF v5+/v6+ via a one-command objcopy --weaken-symbol patch. Enables Authentication (SAE Commit), Deauth, Reassoc, Disassoc, and Control frames (RTS/CTS/ACK) through esp_wifi_80211_tx()
2026-09-27
tgeczy/ssi263-speech
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The SSI-263 speech chip, emulated, with the original firmware of the Speak-Out, Braille Lite, Accent-mini and Accent SA driving it. NVDA add-ons.
2026-09-07
austintgriffith/picowallet
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A stablecoin hardware wallet from three Amazon parts, no soldering. Pico 2 W + LCD + ATECC608.
2026-09-03
smallerxuan/mvl
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A lightweight MVVM support library for multitasking systems + LVGL 8.x.
2026-08-27
lxw112190/lw.PPOCR.C
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Lightweight pure-C PP-OCRv6 Tiny inference runtime supporting DET/CLS/REC, full OCR, SSE2/AVX2, with C# WinForms and cross-platform HTTP/Web demos. Lightweight pure-C PP-OCRv6 Tiny runtime with full OCR, SIMD, C# WinForms and cross-platform HTTP/Web demos.
2026-10-29
Z-billi/roboArm
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Open-source robotic arm: SolidWorks CAD models, Arduino UNO firmware and Python/PySide6 desktop control. MIT licensed.
2026-10-29
math0ne/retrack-tracker
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Retrack for Polyend Tracker: a from-scratch 4-track looper firmware for the original Polyend Tracker
2026-10-10
WonderLantern/z7-qemu
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Experimental Nikon Z7 machine for QEMU, functional RAW/ISP/LCD and research tools. Bring your own firmware.
2026-09-28
harman-f/mhi2_altscreen_carplay
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Open research for CarPlay AltScreen/Auxiliary Screen navigation in MQB Virtual Cockpit on VW Group MHI2 — Škoda first, SEAT/VW planned.
2026-09-18
HuskerMinion/techo5-spot
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Linux firmware for the Echo Spot (1st gen): no Fire OS, no Alexa. A local Home Assistant voice satellite with a round touch face, camera, Bluetooth, phone calls and signed A/B updates.
2026-08-28
MUJI0807/RK3588-Dual-Camera-AI-Perception-System
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Real-time YOLOv5s + UNet on RK3588 with OpenCL GPU-accelerated lens undistortion. Dual-camera AI perception system for autonomous driving assistance.
2026-10-24
IrvingGuerra/lglow
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LGlow: bring your old LG TV back to life. A clean, fast, ad-free home screen for rooted 2019 LG TVs (webOS 4.5). Installer, guides in English and Spanish, and before/after.
2026-10-22
jss8649/quiet-tizen
A
Native Quiet Home launcher, reversible cleanup tools, and an agent-readable guide for the Samsung U8000F running Tizen 9.
2026-10-19
DustinYe/gesture-media-controller
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Infrared gesture-based BLE media controller for AtomS3R and PAJ7620U2; C++ firmware, trajectory replay, and documented v24 baseline.
2026-10-16
yanxuceo/knoedel-watch
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Animated vocabulary cards for learning languages, on an ESP32-S3 (M5Stack StopWatch). First course: German.
2026-10-14
L110011101c/mcu-timer-calc
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8051 timer initial value calculator: a command-line tool with zero third-party dependencies and fully unit-testable, also an Agent Skill.
2026-09-30
ESPARGOS/esp-sdr
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ESP-SDR uses the undocumented raw I/Q capture functionality of ESP32 family chips to turn them into (low-duty-cycle) Software Defined Radios
2026-09-04
collabray/wisense
A
WiFi CSI human sensing for Python presence, fall detection, breathing rate, activity classification, and occupancy counting from an ESP32. No camera, no cloud, no PyTorch/CUDA at runtime.
2026-09-04
embedder-dev/pytrace
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Python SDK for SEGGER J-Link and J-Trace: ETM instruction trace, code coverage, RTT, SWO and target control
2026-11-02
justhalfbit/thinksmart-ubuntu-image
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Voice-assistant system image for Lenovo ThinkSmart View (CD-18781Y), based on rickx/ubuntu-thinksmart: boots straight into the voice UI; flashing guide in Chinese and English (for people and AI agents), image build scripts and device fixes | Voice-assistant system image for Lenovo ThinkSmart View (CD-18781Y), based on rickx/ubuntu-thinksmart: boots straight into the voice UI; flashing guide in Chinese and English (for people and AI agents), image build scripts and device fixes
2026-10-26
elithrar/samshush
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Root your Samsung TV and turn off the microphones, ads & other questionable services.
2026-10-26
loopj/tinysd
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Dependency-free C library for SD cards and SDIO on embedded and bare-metal systems.
2026-10-15
OpenHandheldCollective/OpenABL
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A graphical boot menu and standard Linux boot for Qualcomm handhelds, built into Qualcomm's Android bootloader (ABL).
2026-10-01
ntdevlabs/exynos9810-woa
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Windows 11 on the Samsung Galaxy S9+ (SM-G965F, Exynos 9810): UEFI, drivers and an installer that goes from stock Android to the Windows desktop.
2026-09-30
ibrahim-dogan/vita-flash-emulator
A
A Flash player for PS Vita, built on Ruffle. One VPK: launch it, pick a game from your library, play — with touch, button mapping and a pause menu.
2026-09-10
brenpoly/polymo
A
A physical digital pet you keep alive — ESP32-S3 firmware and an Android app that does all the thinking on-device.
2026-09-05
SAM0-0/ATHER-OBD-READER
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A open-source OBD data reader for Ather electric scooters. This device reads real-time CAN bus data directly from the scooter's BMS (Battery Management System), allowing owners and technicians to monitor actual battery health, cell imbalance, switch statuses, and more.
2026-08-29
kroy-the-rabbit/openfpga-carttools
A
Cartridge utility for the Analogue Pocket: identifies and dumps Game Boy, Game Boy Color and Game Boy Advance cartridges over the Pocket's own connector
2026-10-27
kirklin/skyward
B
An Android recovery written in Rust from scratch: decryption, installs and OTA updates, backup, WLAN, MTP, adb and fastbootd. Runs the phone's own drivers and services from its stock firmware.
2026-10-26
BasilSkyWalk/echopod
B
Replacement firmware for the Snowsky Echo Mini 8 GB music player: Cover Flow, a library built on the player, favorites, playlists and Up Next
2026-10-12
kralonur/kws-x1-standalone-rs
B
Open source Rust firmware for the KOWSI KWS-X1 USB C meter. It shows live power, lists everything your charger offers over USB PD, lets you ask for fixed or PPS voltages and can test a cable at 5 A. Built on Embassy, no vendor firmware needed.
2026-09-12
henriklied/esphome-airplay2
B
ESPHome external component that turns an ESP32 into an AirPlay 2 receiver. Non-Commercial licensed (port of rbouteiller/airplay-esp32).
2026-10-17
whstudio123/esp32-iq-tx
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SRAM-based arbitrary IQ transmission for ESP32-S3 and ESP32-S31, with selectable sample rates, QPSK/16QAM OFDM waveforms, and E310 spectrum and constellation tools.
2026-10-17
Show HN: Esp32sim – Run ESP32 firmware in the browser
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Hi HN, I’ve been working on esp32sim, an open-source ESP32 emulator that runs in the browser. The fun part of the demo is that there is no ESP32 involved — the firmware is executing in the emulator. The goal is to make ESP32 software easier to experiment with, test and simulate without always needing physical hardware connected. Source: https://github.com/mikroverk/esp32sim I made a short video showing it in action: https://youtu.be/waoWFilTWEc I’m particularly interested in feedback from embedded developers: what would an emulator like this need to support before you’d actually use it for development, testing or CI?
2026-10-10
mar1mo-41414/SonyNasne-debian
B
Tools and documentation for analyzing the Sony nasne (CECH-ZNR2J) and booting Debian (mipsel) directly
2026-10-07
ji10me/ESP32_C5_Wifi_spectrum_analyzer
B
ESP32-C5 Wi-Fi SDR spectrum analyzer (2.4/5 GHz) using ESPARGOS/esp-sdr firmware
2026-09-18
dikeckaan/mu300-linux
B
Linux (Ubuntu 26.04 + systemd, custom 5.4 kernel) on the ZTE F50 / MU300 5G hotspot (Unisoc T760 / UMS9620): boot tooling, kernel config, modem/PM watchdog bring-up, Wi-Fi, findings
2026-08-24
epynic/MeterEye
B
A camera reads my electricity meter's LCD so I don't have to. ESP32-CAM + custom 7-segment decoder, no ML, no cloud
2026-10-12
nocaseguy/hx-stomp-nam
B
Neural Amp Modeler on the HX Stomp's SHARC: independent firmware, assembler, simulator (GPL-3.0-or-later)
2026-10-10
RealCaCl2/z30-firmware-extensions
B
Source-based Nikon Z30 C 1.20 firmware extensions and patch tools
2026-10-07
charlesvestal/fm1-omnichord
B
OMNI: an Omnichord-style chord harp firmware for the M-VAVE FM-1. Strum the white keys, pick chords on the black ones.
2026-10-02
zeugmaster/find-my-nuts
B
Proof-of-concept ESP32 Cashu wallet with Find My transport and a host receiver
2026-09-16
23watejona/teatime-os
B
A bare-metal operating system for the ESP8266 with no vendor blobs
2026-09-06
jlcjak/astra_piNas
B
Six-layer CM5 Lite dual-NVMe carrier with PCIe switch, Ethernet, microSD, USB-C PD and PoE. Review design; fabrication hold documented.
2026-10-08
charlesvestal/fm1-fomni
B
FoMni: a chord harp firmware for the M-VAVE FM-1, inspired by the Omnichord. Strum the white keys, pick chords on the black ones.
2026-10-06
b3s3da/qemu-harness
B
QEMU harness for AI agents: boot aarch64/arm/riscv64/x86_64 kernels in seconds, exec via guest agent, fast rootfs rebuilds, IoT emulation
2026-10-06
charlesvestal/fm1-x0x
B
X0X: groovebox firmware for the M-VAVE FM-1 (909, 808, two 303s with TB-3PO, breakbeat generator, song mode). A fork of Felucca.
2026-10-03
Octoblimp/Android-Eclair-3DS
B
Android 2.0 (AOSP Eclair) running bare-metal on the New Nintendo 3DS XL
2026-09-21
0xAX/BootLife
B
Conway's Game of Life running directly from a 512-byte x86 boot sector, using VGA memory as the simulation grid.
2026-09-13
valleytechsolutions/Flock-Noir
B
A IR Flock Detector & Wardriver with the Seeed Studio ESP32-S3 Sense. Using the OV3660 with no IR lens allows you to detect flock cameras at night through IR that will use the gps to log the location and alert via buzzer saving in a wigle format CSV to the SD Card.
2026-09-02
serkantanriverdi/bma8
B
Baremetal Atari 8-bit emulator for Raspberry Pi (400/800/XL/XE/5200). Instant boot, no OS. Inspired by BMC64.
2026-11-02
kai-wu-cortex/airsim-mu300
B
AirSIM hardware integration for MU300/U30 Air: OpenWrt LuCI plugin, Linux call agent and PCM bridge. Development preview.
2026-11-02
robertnisipeanu/idrive-apps
B
Apps and tools for the BMW iDrive 7 (MGU) head unit, installable from the Store
2026-10-28
mihalinn/torne_drv
B
Linux driver for the PS3 digital TV tuner Sony CECH-ZD1 J(torne). Same /dev interface as px4_drv, and also supports the built-in B-CAS card slot
2026-10-21
isod89/clipper-fm1
B
Clipper: an experimental synthesizer firmware for the M-VAVE FM-1 (from SLOOP, based on Felucca)
2026-10-06
alphafox02/halowscope
B
2.4 GHz spectrum analyzer served over Wi-Fi HaLow by an ESP32-S3 (Elecrow ESP32 HaLow module)
2026-09-28
xwtk/hmg_nemesis
B
Gain control of your Hyundai Motor Group vehicle, NEMESIS provides a way to execute software as root. Compatible with Gen5W AVNT systems with OTA update support.
2026-08-23
Ashlixy17/PCB_lightgraph_Portable
B
PCB_lightgraph_portable is a click-to-run HTML tool for intelligent layering of PCB images and drawing export.
2026-10-29
mmockett/OP-XY-MNMD
B
The Elektron Machinedrum and Monomachine, written from scratch for the Teenage Engineering OP-XY on the Open-XY SDK
2026-10-15
LeoooChen/PonWRT-TYFZA1
B
Native OpenWrt port for Tianyi TYFZA1 / Realtek RTL9617CVW. Experimental PON, Wi-Fi and hardware forwarding.
2026-10-02
vcazan/fpvdash
B
Full-screen telemetry dashboard for EdgeTX colour radios: Betaflight quads on ExpressLRS or Crossfire, with a find-my-quad QR code, logbook and voice callouts
2026-09-25
irpina/digiemu
B
Elektron Digitakt (mk1) emulator: runs the Digitakt's own firmware behind a clickable front panel, with live audio. Portable Windows app, bring your own .syx. Unofficial.
2026-11-03
soumarcelino/fiio-jm21-xnu
B
Native XNU port for the FiiO JM21: kernel patches, device drivers and boot loader
2026-11-02
Koppar-AI/koppar-lte-modem
B
A phone line over USB-C: LTE data, SMS and voice calls with the call audio on USB. A 4-layer KiCad board designed by Koppar from a one-page spec.
2026-10-21
YuuLuo/a7c2-camera-tools
B
Research and reproducible firmware tools for Sony A7C II (ILCE-7CM2).
2026-10-14
kobebeefg/ikea-clock-lab
B
Bilingual IKEA KORTLINJE LED panel hack and Wi-Fi clock tutorial
2026-10-03
nuskey8/zerocbor
B
A zero-copy, zero-dependency, no_std-compatible, extremely fast CBOR (RFC 8949) serializer for Rust.
2026-09-21
xisure/li-ion-soc-soh-toolkit
B
Li-ion SOC/SOH estimation library (C99, zero-dependency) + PC calibration toolchain (Ah integration + OCV resync + EKF), with HPPC parameter identification scripts
2026-09-17
ages2001/AHCINT
B
Standard SATA AHCI Controller Driver for Windows NT3.50, NT3.51, NT4.0, 2000 and XP x86 and x64
2026-10-26
alphafox02/s31-sdr
B
SDR firmware for the Espressif ESP32-S31: 10-bit I/Q as VITA-49 over Gigabit Ethernet
2026-10-24
chiotas/lightkeeper
B
A calm Home screen for LG TVs on older webOS, made to sit beside GlassHouse
2026-10-13
dinggefei/fridge-eink-display
B
Fridge e-ink display: a low-power open-source information screen based on ESP32-S3, a four-color e-ink display, a WeChat Mini Program and FastAPI
2026-10-05
jochenhammes/esp32-sdr-trx
B
A software-defined transceiver from one ESP32-S3 board: rtl_tcp receiver for SDR++ and FM/SSB voice transmitter for 13 cm (experimental)
2026-10-04
click6067-ship-it/token-tv
B
Turn a $5 AliExpress clock into a physical AI usage dashboard (Claude, Codex, multi-account). Zero-flash where possible.
2026-09-23
WangTingMan/Bluethread
B
Self-developed dual-mode Bluetooth stack in standard C++. Cross-platform for Windows, Android, Linux and RTOS. Modular design with thread-pool scheduler. Inter-module message delivery, serial execution to reduce locks. Features HCI, L2CAP, QoS, extended flow spec, packet validation and state machines. Support feature trimming for embedded & PC.C.
2026-08-27
b0hemia/diskos
B
Installer for diskOS - a custom firmware/UI for the FiiO Snowsky Disc DAP (beta). Runs from source; flashes over Ingenic mask-ROM USB.
2026-08-24
jstriblet/kindle-wall-display
B
Turn a jailbroken Kindle into a low-power wall display that renders any PNG you serve it. Manual plus the KUAL client I run on mine.
2026-11-05
Kemerd/claude-hardware-in-the-loop
B
Agent-driven hardware-in-the-loop engineering method: Claude Code skill, swarm orchestration, generator-first KiCad PCB pipeline, CadQuery CAD, firmware-in-the-loop, web CAD/PCB viewer. Source-available (HIL-ASA-1.0).
2026-10-25
richiewillmott/Wirely
B
Free, open-source circuit design and simulation app. Draw a circuit, press play, watch it work: glowing LEDs, spinning motors, 555 timers, logic chips, op-amps and a live graph. For the workplace, the classroom and the workbench.
2026-10-23
hu553in/yandex-station-root
B
Root ADB and OTA controls for Yandex Stations, tested only on Mini 2
2026-10-17
zyn950929/MotoNav
B
Android and ESP32-S3 1.75-inch round-screen navigation; AI-assisted development, non-commercial use only, resale without permission prohibited.
2026-10-02
xon94010/WiimKnob
B
WiiM remote control firmware for the Waveshare ESP32-S3-Knob-Touch-LCD-1.8
2026-09-02
tapresle/pebble-watchface-builder
B
Browser-based drag-and-drop watchface builder for the Pebble Time 2, Core 2 Duo and Pebble Round 2 that emits Pebble C SDK code for CloudPebble.
2026-10-15
mmm1712/Local_AI_esp32
B
A language model trained from scratch and running offline on an ESP32-S3 with a touchscreen chat interface.
2026-10-12
merckhung/nt51_xfce4_embedded
B
An embedded project using leaked Windows XP OS kernel + Linux userland (Syscall shim + Musl + Busybox + Xfce desktop)
2026-09-18
7757/fanduck
B
Fanduck · Microduck has been successfully replicated! Sharing live demos, bill of materials, 3D printing, boards, build tools, and a 3D mirror workbench. Build resources from our completed Microduck replica.
2026-09-16
Jondalar/UE2-C64U-Emulator
B
Emulator for Ultimate 64 Elite II / C64 Ultimate firmware (UI, services, TRX64 as C64) — develop and test firmware, including a mcp server
2026-09-12
Fenish/decky
B
Open-source DIY stream deck: touch firmware for the CrowPanel 7-inch ESP32-S3 and a Windows desktop app
2026-10-29
LucaPizzorno/esphome-touch-remote
B
Modular battery-powered touch remote for Home Assistant, built with ESPHome and LVGL on a Freenove ESP32-S3 2.8" display. Pick your pages (lights, LED, Apple TV, appliances, power) and add as many entities as you like. Deep sleep with wake on touch, Qi charging, English/Italian UI. Made with Claude Opus.
2026-10-26
pskillen/mm9pdy-firmware
B
MM9PDY modded firmware for the AnyTone AT-D890UV and Baofeng DM-32UV: release patches, release notes and user guides
2026-09-21
athralk/TinyGPU
B
Custom RVV 64 bit vector accelerator for the CVA6 RISC-V CPU. SIMD style layout with 3 memory hierarchies inside the accelerator.
2026-09-18
Praepes/phicomm-s7-ha
B
Phicomm S7 body fat scale ESP8266 replacement firmware — Home Assistant MQTT Discovery
2026-09-11
n0tmast3r/Qpro-Enhanced-FT
B
Enables tongue tracking and eye convergence on a rooted Quest Pro
2026-08-24
7032JP/7032AltROMs
B
A set of alternative ROMs for the FM-7 / FM77AV series based on an independent implementation (MIT license, source published)
2026-10-27
manuelx900/CrossNext
B
Firmware for Xteink X4 Pro: reading, study tools, games and the PET reading companion.
2026-10-24
samyeei/mosaico-learning-assistant
B
ESP-Mosaico study assistant: photograph a question and pick one, voice follow-ups, step-by-step explanations. Source code public, commercial use prohibited (PolyForm Noncommercial 1.0.0). Legacy ABI 1 firmware.
2026-10-16
ardiri/dev-palmos
B
Historical Palm OS development resources, SDKs, documentation and utilities
2026-10-16
orailnoor/NativOS-GSI
B
NativOS is an experimental Linux-first Android GSI combining an Ubuntu/Phosh desktop with Android apps and hardware support. Features integrated Linux startup and APT package management. Boot-tested on Moto G71 and Pixel 6a; compatibility varies by device.
2026-10-04
Hellz0wnzJ00/hellzgate-espnow-cluster
B
HellzGate ESP-NOW Cluster Firmware — Open-Source Beta. Master + scanner/node firmware for ESP32-C5. Fork, build and test. Not a final or production release.
2026-10-04
aapplle/op13-battery-unlock
B
OnePlus 13 (PJZ110) capacity unlock: shutdown voltage 3250→2800mV, fuel gauge natively recalculates SOC. KernelSU module, across ColorOS 15/16/17, supports jailbreak mode.
2026-09-15
briskspirit/Sisu_DCP-3
B
From-scratch firmware for the Sisu DCP-3 replacement mainboard, recreating the Nokia 3210 NSE-8 v6.00 experience on modern hardware.
2026-08-31
simone7121/PictoBridgePC
B
Bridge sperimentale tra un PC Windows/Linux, un ESP32 classico e Nintendo DSi PictoChat. Il progetto permette di entrare nella stanza B, inviare testo o disegni dal PC e visualizzare nella GUI i payload ricevuti dal DSi.
2026-10-29
eriktaveras/pana-companion
B
La cara y la voz de tu agente de IA en una pantalla redonda de Waveshare (ESP32-S3 AMOLED 1.75 · ESP32-P4 4C). Hermes Agent, Whisper, Piper. Personalízalo con Claude Code.
2026-10-26
BAZUKA74/cyd-photo-frame
B
ESP32-2432S028/HW-458 Wi-Fi photo frame: Android app, photos, GIF, LIVE drawing, touch menu and open firmware
2026-10-24
ravensclawx/ftpd-sb
B
FTP file transfer for romfs, save, and tmp. An HBLauncher SDK app for SmileBASIC.
2026-10-03
temeculadsp/nibbi
B
Nibbi by Temecula DSP — a sampler instrument with MELO and HITKIT banks, stereo effects, and tape looping.
2026-09-15
briskspirit/Sisu_SSE-9
B
Experimental six-layer LTE replacement mainboard for the Nokia 3210, built around RP2354B and Telit LE910C1-WWX.
2026-08-24
SyueFa/H.E.R.A.
B
H.E.R.A. (Healing Evaluation and Recognition Architecture) — an on-device edge-AI system for offline wound assessment using YOLOv8 segmentation, HSV tissue analysis, and PUSH-based decision logic.
2026-10-10
engineerdiaa/portable-heart-led
B
An over-engineered LED heart keychain: 16 LEDs, Arduino Nano and a rechargeable LiPo. Schematic, code and full build guide.
2026-10-07
zhuoligetu123/microduck-hd1910m
B
Radxa ZERO 3W + Feetech HD1910M ×15 + BNO08x. Includes adaptation for four models — walking, picking up, standing up, and rolling — Rust backend/low-level, RL training and MuJoCo simulation source; client APK. MicroDuck HD1910M native runtime, RL integration, deployment and APK release.
2026-10-03
Yared-Cyber/krypton-16
B
A 16-bit x86 Real-Mode network packet validator and stream cipher engine written in NASM assembly.
2026-10-02
TinyGregAudio/Model-TG
B
Unofficial firmware additions for the Elektron Model:Cycles (OS 1.13): a full Sampler machine, resampling, beat-repeat with master FX, and more
2026-10-01
drmakerr/DrWalls
B
Wi-Fi CSI motion detection using ESP32 — no camera or additional sensors required.
2026-10-01
zou-shui/MugglesWand
B
A magic wand based on ESP32-S3 + TinyML. Wave the wand to trigger magical effects, with gesture recognition, low-power standby, and personalized model training; both software and hardware are fully open source.
2026-10-04
codingard/esp32-fpv-receiver
C
C5VRX build companion: ESP32-C5 analog FPV wiring, source firmware and a real-device USB console
2026-09-17
john-steinmeyer/sc64-savestates
C
Save states, a virtual Controller Pak, suspend/resume and slow motion for the SummerCart64: a fork of N64FlashcartMenu, one file to drop on the card
2026-09-15
fiedoruk/emini-home
C
emini.ink Home: a calm, four-colour poster of your day for the ZECTRIX NOTE4C e-paper devkit. ESP-IDF firmware, set up from a phone.
2026-09-06
dv365lab/awesome-dram
C
A continuously updated DDR, LPDDR, GDDR & HBM engineering knowledge base: published and upcoming JEDEC standards, protocol, controller, PHY, timing and verification, plus a curated index of open-source design and verification projects.
2026-10-14
adamcharleswilsonmusic-code/Fart-Machine-One
C
Turns your M-VAVE FM-1 into a questionable musical instrument. Eleven artisanal farts, reverb, delay, and a sixteen-step sequencer.
2026-10-05
tschak909/frob-modern
C
The Frob, An Apple II Atari 2600 Development System, re-made as an RP2354 based device.
2026-10-02
MultiX0/orion
C
A little voice assistant for your desk that you build and own. Flash an ESP32-S3 board with one double click and bring your own keys.
2026-09-18
patchx2027/Patchx-OpenDeskRobot
C
Patchx-OpenDeskRobot is an open-source desktop companion robot, built by the PatchX team for our own desks. It listens, talks, and reacts with expressions and motion.
2026-09-02
llm-net/soc-agent
C
SoC Agent: an AI API gateway and development tool access deployed on ARM devices in your own intranet. Free to download and use; this repository hosts the firmware source (MIT) and build artifacts, and does not accept Pull Requests.
2026-10-04
hyj-STAR/voiceshell-muse-bridge
C
VoiceShell · Experimental Muse bridge: ESP32 pairing, Linux text round trips, real walkthroughs and compatibility notes.
2026-10-02
CloudZao/Metalio-E-INK4-Plus
C
Metalio E-Ink4-Plus is an open-source e-ink hardware device for reading and AI assistant scenarios. The device features a 4.7-inch 1216×684 parallel e-paper display (ED047TC2 / EPDiy + TPS65185), FT6336U capacitive touch, cover virtual buttons, warm/cool dual-color front light, I2S microphone and speaker (via an external Bluetooth audio chip), microSD, on-chip Wi-Fi, SC7A20H three-axis accelerometer, PCF8563 RTC, BQ27220 fuel gauge, vibration motor, and USB camera / flashing path switching. The device can interact with cloud AI via voice, and supports local library reading, cloud resource push, standby wallpapers, SD/U disk storage, and low-power management.
2026-09-27
pneedleman/reclaim-spotify-clock
C
An ESP32 smart bedside clock with tactile rotary controls, Spotify connect streaming, sunrise lighting, and school calendar sync—100% microphone-free.
2026-09-07
somerandomviolinkid/bob16
C
extremely simple custom 16 bit cpu emulator and assembler as seen on youtube
2026-10-25
CH-LaTiao/lumina-guide
C
LUMINA Guide / Lingxi: Jetson + Orbbec RGB-D wearable navigation assistant prototype
2026-10-03
viticci/muse-pocket
C
An e-paper Muse companion for the Xteink X4 Pro: character, status, settings and recoverable SD firmware updates.
2026-09-29
Auroranchen/-PCB
C
An STM32G431RBT6 development board for the Lanqiao Cup microcontroller competition, drawn in JLCEDA Pro, 2-layer, about 115×90mm, with 117 components, 110 nets, 370 vias, and DRC passed. The board integrates the STM32G431RBT6 main controller, onboard DAP-Link debugger (STM32F103C8T6), EEPROM, digital potentiometer, NE555 signal generator, LCD parallel port, buttons, LEDs, and other rich peripherals; the schematic is 10 pages with complete peripheral interfaces, suitable for competition learning and secondary development. Everyone is welcome to study it, offer pointers, or push projects forward on this basis.
2026-09-24
sqliteai/blink
C
An open-source, high-performance System One Model for one-pass typed decisions, with an embeddable C runtime and WebAssembly support.
2026-09-04
Yuikawa-Akira/SpherePongWars
C
Real-time generative sphere PONG WARS simulation for M5Stack StopWatch, featuring touch, IMU control, and haptic feedback.
2026-08-27
limengdu/reTerminal_Sticky_Bunny
C
A living virtual pet and interactive ePaper app suite for Seeed Studio reTerminal Sticky, built with ESP-IDF and PlatformIO.
2026-08-24
joeseesun/vocab-passport
C
Offline word-root flashcards for FoloToy AI Passport | Offline word-root flashcards for FoloToy AI Passport.
2026-10-27
StonedModder/ezBasic
C
Nintendo Switch homebrew USB HID keyboard for the embedded SmileBASIC bootstrap
2026-10-21
Adithyachatla/esp32-command-center
C
green-terminal web command center served by an ESP32 from its own Wi-Fi access point (PlatformIO, LittleFS, ESPAsyncWebServer).
2026-10-15
PiggyBackBayonet/MiAuto
C
Project ICCOA CarLink from Xiaomi / OPPO / vivo phones to the car head unit: wireless connection, no adapter box, no root. Car-side ICCOA CarLink receiver for Xiaomi CarWith, OPPO Car+ and vivo Jovi InCar.
2026-09-27
sunce66666666/Ninebot-BFG-Calibration
C
Ninebot electric scooter BFG metering module battery calibration research project
2026-09-14
mochimochi-man/Aquarium_Espresso
C
A planted tropical aquarium for the ESP32-S3 and a 320x240 ST7789 - and a microSD slot, so a transparent PNG on the card swims in it too. / Arduino IDE
2026-10-09
Show HN: I Put an AI Agent on a Nokia 110
D
I was using this mobile to reduce my screentime. Recently got the idea to put ai agent in it. Started with installing android, but failed as it has only 48MB RAM. Then reverse-engineered for few days and finally able use AI Agent in this and automated few actions. Thanks
2026-10-07
hey-its-brian/tab5-cyberdeck
C
DECK//OS: cyberpunk cyberdeck firmware for the M5Stack Tab5 + Tab5 Keyboard (ESP32-P4, LVGL 9)
2026-10-03
Hellz0wnzJ00/hellzgate-espnow
C
Beta ESP32-C5 ESP-NOW scanner/master firmware for community forks and testing. Not a final or production release.