
Coin Cell Tester
tomrodinger/servomotor
Open-source NEMA-17 integrated servomotor (motor + closed-loop driver + controller + encoder). RS-485, Python/Arduino libraries, MCP server for AI control. Hardware, firmware and software.
Boards in 21 GitHub repositories, designed in KiCad, that use the CJ431 by Jiangsu Changjing Electronics Technology (CJ) (-25℃~+85℃@(Ta) 100mA 1mA 2.5V~36V 50ppm/℃ Adjustable Parallel ±0.5% SOT-23 Voltage Reference ROHS). See how each wires it, with its parts, size, README and files; the CJ431’s symbol, footprint and pinout are on its own page.

tomrodinger/servomotor
Open-source NEMA-17 integrated servomotor (motor + closed-loop driver + controller + encoder). RS-485, Python/Arduino libraries, MCP server for AI control. Hardware, firmware and software.

StudioKAT/Toolbox
主な機能: - オーディオ/CVミキサー(加算・減算) - CVへのオフセット追加(5V/10V)・極性反転 - 1:3 バッファード・マルチプル - 2:2 ユニティミキサー - 3:1 アベレージミキサー(各チャンネルのゲイン = 1/3) - SIGNセクション:インバーター / 半波整流 / 全波整流 - LOGICセクション:アナログOR / アナログAND - S&Hセクション:サンプル&ホールド / ホワイトノイズ出力…


StudioKAT/DualTimbre
この作品は Creative Commons 表示 - 継承 4.0 国際 (CC BY-SA 4.0) の下でライセンスされています。 This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

StudioKAT/VintageDualVCA
If nothing is patched into OUT1, the signal from CH1 is automatically mixed into OUT2.


Mineinjava/ffellowship
Frequency Fellowship: Examining Radio Wave Propagation from a High Altitude Balloon


snarrn/Raspberry_Pi_Pico_MultiBoard
This is a PCB with OLED, LaserTag, two Radio Receivers, Oscillotor, Sound Card for PC, Smoke Detector, LEDs, Maze Game, Accelerometer, Motor/Speaker Drivers, two Proximity Detecters, Thermometer, Photo Detector, Etc.



cyntem/piezo_driver_stm32
3-axis PCB and schematics High Voltage Piezo actuator driver with 2 Step motor driver and optional blue-ray microscope (just for test)


Galacs/motor-power-poc
A POC PCB to test circuit electrical protections and motor control schemes


Qeteshpony/Badge-Scanner
Raspberry Pi Pico W powered device to scan NFC-Badges and show a status on display

StudioKAT/Toolbox
主な機能: - オーディオ/CVミキサー(加算・減算) - CVへのオフセット追加(5V/10V)・極性反転 - 1:3 バッファード・マルチプル - 2:2 ユニティミキサー - 3:1 アベレージミキサー(各チャンネルのゲイン = 1/3) - SIGNセクション:インバーター / 半波整流 / 全波整流 - LOGICセクション:アナログOR / アナログAND - S&Hセクション:サンプル&ホールド / ホワイトノイズ出力…

radex/radmatrix
Tiny modular LED matrix. NOTE: Moved to https://code.hackerspace.pl/radex/radmatrix
Mineinjava/ffellowship
Frequency Fellowship: Examining Radio Wave Propagation from a High Altitude Balloon



PhilipMcGaw/robot-NautiPi
NautiPi is the physical hardware and embedded-project repository for the robot projects. It contains electronics, PCB and KiCad work, Arduino projects, component records, mechanical references, photographs, and retained…
