Raspberry Pi Hat that adds RS485 communication to Raspberry Pi 5 for interfacting with USB and Bluetooth HID Devices
A collection of development modules for electrical engineers, who work on new PCB designs.
This repository contains the schematic for a USB-powered microphone module designed in KiCad. The circuit is based on the MAX9814 microphone amplifier and PCM2906 USB audio codec.
nRF54L15 module with full IO set and external DC-DC regulator for maximum efficiency
efogdev
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A collection of development modules for electrical engineers, who work on new PCB designs.
A collection of development modules for electrical engineers, who work on new PCB designs.
Open source digital servo replacement module for the Sony Walkman WM-D6C. Replaces the CX20084 servo IC, CP304 boost converter, and CN301 power jack with a single STM32G0B1-based PCB. Dual variant: USB-C PD or polarity-agnostic barrel jack input. Bare-metal C firmware. CERN OHL-P v2 / MIT / CC BY 4.0.
Open source digital servo replacement module for the Sony Walkman WM-D6C. Replaces the CX20084 servo IC, CP304 boost converter, and CN301 power jack with a single STM32G0B1-based PCB. Dual variant: USB-C PD or polarity-agnostic barrel jack input. Bare-metal C firmware. CERN OHL-P v2 / MIT / CC BY 4.0.
3D air mouse based on STM32 - Can be used for controlling CADs and every other manipulation in 3D space. Is based around STM32L452, IMU LSM6DSL (gyroscope and accelerometer) and Bluetooth low power module RN4871. Also contains battery management system for charging internal battery and also powering itself from this li-po battery (around 40 mah). Battery can be recharged via USB type C which can be also used for streaming data from accelerometer.