Boards in 2 GitHub repositories, designed in KiCad, that use the STM32L452CEU6 by STMicroelectronics (-40℃~+85℃ 1.71V~3.6V 12bit 12bit 160KB 32 Bit 38 512KB 80MHz ARM Cortex-M4 Built-in FLASH QFN-48-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHS). See how each wires it, with its parts, size, README and files; the STM32L452CEU6’s symbol, footprint and pinout are on its own page.
sorjente/custom-pcb
This is an attempt to build a minimal, custom PCB featuring an STM32L4 MCU, using (ideally only) open source tools. It will hopefully serve as a stepping stone to build more complex embedded systems.
stellarcorp/tvsc
Core software repository for the Tennessee Valley Stellar Corporation