A locker redefined.

A locker redefined.

Industrial Raspberry Pi CM4/CM5-compatible RTK base-station carrier with PoE+, external DC input, BQ25750 2S Li-ion UPS, USB hub, Mosaic-X5 mPCIe GNSS, Quectel EM05 LTE, Ethernet, watchdog, protection, and JLCPCB-focused manufacturing constraints.

STM32F405-based TVC rocket flight controller with redundant IMU/barometer sensors, dual telemetry, dual power rails, servo/pyro outputs, SD logging, watchdog, USB-C, and SWD debug, reconstructed from the uploaded reference schematic image.

Industrial-grade embedded I/O controller schematic with 9-36V protected input, 5V buck, 3.3V logic, STM32F103C8T6 MCU, industrial dry/wet/pulse/analog inputs, 12V semiconductor-switched output, RS-485/UART communications, external watchdog, SWD/debug features, and interview-ready engineering notes.

CNC hydraulic press brake controller with STM32H743, ADS1256, 5x DAC8501 ±10V outputs, 3x AD598 LVDT interfaces, isolated 24V digital inputs, 100BASE-TX Ethernet, watchdog, E-stop hardware disable, and 4-layer 220mm x 160mm PCB architecture. Domains: field 24V I/O, precision analog, logic/Ethernet. Safety behavior: E-stop and valve-disable force all analog command outputs to 0V-safe state and disable field enables; watchdog and power-good supervisor reset MCU on comms or rail faults. PCB constraints: L1/L4 signal+components, L2 solid GND, L3 power plane, 1.0mm board inset margin, RJ45 at edge, field connectors on opposite edge, isolation corridor between field wiring and logic/Ethernet, 4x M4 plated mounting holes inset 10mm from corners.