
Rotini Hardware
AlfredoSystems/Rotini-Hardware
📖 Documentation: https://www.alfredosys.com/Rotini-Hardware/ (pinout, power limits, flashing ExpressLRS, first Arduino upload)
Boards in 10 GitHub repositories, designed in KiCad, that use the ESD9B3.3S by onsemi (-55℃~+150℃@(Tj) 1 10.5V、11.5V 100nA 15pF 2A 3.3V 7V Bidirectional ESD IEC 61000-4-2 SOD-923 ESD and Surge Protection (TVS/ESD) ROHS). See how each wires it, with its parts, size, README and files; the ESD9B3.3S’s symbol, footprint and pinout are on its own page.

AlfredoSystems/Rotini-Hardware
📖 Documentation: https://www.alfredosys.com/Rotini-Hardware/ (pinout, power limits, flashing ExpressLRS, first Arduino upload)




jadenrhee/JRWatch
Low-power BLE wearable: nRF52840 module + nPM1300 PMIC + BMI270 IMU + Sharp MIP display. 36 mm 4-layer board, ~15 µA projected sleep current, Zephyr firmware.

Batterhead221/esp32-c6_microcontroller
custom esp32-c6 development board with rgb status led, user input, i2c expansion, oled support, and onboard environmental sensing.



yogith-mr/ESP32C6-DEMO-BOARD
Custom ESP32-C6 development board designed using KiCad, including schematic capture and PCB layout. Focused on embedded systems and IoT applications with proper routing, power design, and signal integrity.
