Witty Pi 3 Mini - RTC & Power Management for Raspberry Pi
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.
The 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.
Key Features
- DS3231SN RTC – Accurate timekeeping with built-in temperature sensor (I²C address: 0x68)
- Full Power Cut – Completely disconnects Raspberry Pi and USB peripherals after shutdown
- Scheduled Startup/Shutdown – Set specific times or write scripts for complex ON/OFF sequences
- Voltage Monitoring – Monitor external supply voltage and trigger power state changes
- Single-Tap Power Button – Graceful on/off with one press
- ATtiny841 Microcontroller – Manages power scheduling (I²C address: 0x69)
- Bonnet/pHAT Form Factor – Compact size for space-constrained projects
Compatibility
- All Raspberry Pi models with 40-pin GPIO header (A+, B+, 2B, 3B, 3B+, 3A+, 4B, Zero, Zero W, Zero 2 W)
Installation
Product Information
Product Information
Shipping & Returns
Shipping & Returns
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.
The 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.
Key Features
- DS3231SN RTC – Accurate timekeeping with built-in temperature sensor (I²C address: 0x68)
- Full Power Cut – Completely disconnects Raspberry Pi and USB peripherals after shutdown
- Scheduled Startup/Shutdown – Set specific times or write scripts for complex ON/OFF sequences
- Voltage Monitoring – Monitor external supply voltage and trigger power state changes
- Single-Tap Power Button – Graceful on/off with one press
- ATtiny841 Microcontroller – Manages power scheduling (I²C address: 0x69)
- Bonnet/pHAT Form Factor – Compact size for space-constrained projects
Compatibility
- All Raspberry Pi models with 40-pin GPIO header (A+, B+, 2B, 3B, 3B+, 3A+, 4B, Zero, Zero W, Zero 2 W)
