{"title":"Witty Pi 3 Mini - RTC & Power Management for Raspberry Pi","handle":"witty-pi-3-mini-rtc-power-management-for-raspberry-pi","url":"/products/witty-pi-3-mini-rtc-power-management-for-raspberry-pi","description":"Witty Pi 3 Mini adds a real-time clock (DS3231SN) and intelligent power management to your Raspberry Pi in a compact bonnet/pHAT form factor. It allows you to schedule startup and shutdown times, define complex ON/OFF sequences via simple scripts, and fully cut power to the Pi and all USB peripherals when shut down.\n\nThe onboard DS3231 RTC keeps accurate time even without an internet connection, and its built-in temperature sensor is also accessible. A single-tap button provides graceful on/off control, and voltage monitoring can trigger automatic power state changes.\n\nKey Features\n\n\nDS3231SN RTC – Accurate timekeeping with built-in temperature sensor (I²C address: 0x68)\n\nFull Power Cut – Completely disconnects Raspberry Pi and USB peripherals after shutdown\n\nScheduled Startup/Shutdown – Set specific times or write scripts for complex ON/OFF sequences\n\nVoltage Monitoring – Monitor external supply voltage and trigger power state changes\n\nSingle-Tap Power Button – Graceful on/off with one press\n\nATtiny841 Microcontroller – Manages power scheduling (I²C address: 0x69)\n\nBonnet/pHAT Form Factor – Compact size for space-constrained projects\n\n\nCompatibility\n\nAll Raspberry Pi models with 40-pin GPIO header (A+, B+, 2B, 3B, 3B+, 3A+, 4B, Zero, Zero W, Zero 2 W)\n\n\nInstallation\n\n\n\n💻 Terminal\n\nwget https://www.uugear.com/repo/WittyPi3/install.sh\nsudo sh install.sh\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2919,"title":"Default Title","sku":"AF-5038","price":45.34,"on_sale":false,"in_stock":true,"available_quantity":62,"option1":"Default Title"}]}