This is a Waveshare GPIO Expander For Raspberry Pi Pico. This is a standard Raspberry Pi Pico female header for direct attaching Raspberry Pi Pico, or just through jumper wires. Ensures sufficient power supply for multiple expansion modules with a USB power input connector. Features: Standard Raspberry Pi Pico female header for direct attaching Raspberry
Onboard Digital Motion Processor (DMP)
Android support
Auxiliary I2C interface for external sensors
On-Chip 16-bit ADCs and Programmable Filters
7 MHz SPI or 400 kHz Fast Mode I²C
Digital-output temperature sensor
VDD operating range of 1.71V to 3.6V
MEMS structure hermetically sealed and bonded at water level
RoHS and Green compliant
Supports FAT file system SD carrier
Supports playing of 4Bit ADCPM format files
Recognize the voice files automatically
Support microprocessor and key control
Audio output: 16bitDAC and PWM
Maximum voice storage: 512 voice
Operating voltage: DC 2.6 to 3.6V
Quiescent current: 16 μA (SD card is not inserted)