MurPhySDR is an open source software-defined radio platform based on the AD9364 transceiver IC.
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.
A repository for a 2s lithium ion BMS that utilizes the BQ28Z620. This IC is an all-in-one chip that features battery protection, cell balancing, battery charging, battery current and voltage monitoring, and gas gauging through an impedance measurement to give a precise value for charge left.
This git repository tracks the design and development of the PCB for a phase-locked loop (PLL) system centered around the ADF4159 IC
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
tmarhguy
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I decided to mìhave my own take at a quartz watch by using two Miyota 2035 watch movements and a custom made case and PCB.