A hardware power management module for Raspberry Pi and embedded systems. Graceful shutdown on power loss. Automatic wake when power returns. No data corruption. No manual restart. No babysitting.
Coming Soon
Abruptly cutting power to a Raspberry Pi risks SD card corruption and a broken operating system. Unlike a desktop PC, the Pi has no built-in UPS, no graceful shutdown on power failure, and no automatic reboot when power is restored. For unattended deployments — remote data loggers, kiosks, home servers, industrial edge nodes — this is a critical reliability gap.
Most Raspberry Pi power management solutions rely on a secondary MCU, expensive UPS HATs, or software-only approaches that fail when the system is already compromised. Opto555 solves power loss detection, clean shutdown signaling, and automatic wake-up entirely in discrete hardware — no ATtiny, no complex firmware, no single point of failure.
Power outages in the real world are rarely clean. Power cuts and restores in seconds. Systems are mid-shutdown when power returns. Opto555 is designed around these edge cases — handling the race conditions, timing gaps, and partial-state scenarios that simpler solutions miss. Built for Raspberry Pi 3, 4, and 5, and adaptable to any microcontroller or embedded system with GPIO.