The three Witty Pi RTC (and power management) products I looked at say:
This must be some new use of the word "advantage", etc.Witty Pi 4 uses MCU to emulate a single I2C device with default address 0x08 and also maps all I2C registers in the real-time clock and temperature sensor as virtual I2C registers in the same device. You can access all I2C registers in the real-time clock and temperature sensor via the single I2C device emulated by Witty Pi 4.
The advantage of this new design is that Witty Pi 4 hides other I2C devices (real-time clock, temperature sensor) and becomes the proxy for them to talk to the Raspberry Pi.
Statistics: Posted by PhilE — Thu Feb 27, 2025 10:56 am