Hardware

Solar MPPT Power System

A 30 W solar battery charger with regulated 5 V and 3.3 V rails: an STM32G031 running perturb & observe MPPT and a CC/CV charge state machine, steering a TI LM5175 4-switch buck-boost through a single analog control input. Four-layer KiCad board, schematic and PCB generated from Python, with an electrothermal simulation run against the published board file.

rp2350a-mini

RP2350A_Mini·Adom·molecule-module

General-purpose RP2350A castellated module — 20×36 mm, dual-core Arm Cortex-M33 / Hazard3 RISC-V MCU with 16 Mbit QSPI flash, USB, UART, SWD debug, and 4 ADC channels. 26 user-programmable GPIO/ADC pins on castellated machine contacts (44 contacts + 4 corner machine pins). Drop-in MCU module for Adom workcell designs.