microPAM-pico hardware#

Work in progress

KB2040#

This paricular implementation uses the Adafruit kb2040, that is smaller than the original RP 2040 pico.

Bill of Materials#

As of 04-March-2023 the microPAM-pico could consist of the following components

Component

Source

Product

Price

MCU: kb2040

Adafruit

Product ID: 5302

8.95 USD

Microphone: I2S MEMS

Adafruit

Product ID: 3421

6.95 USD

uSD Card holder

Adafruit

Product ID: 4682

3.50 USD

RTC clock

Adafruit

Product ID: 3013

17.50 USD

USB Powerpack

TBD

TBD

TBD

Wiring#

A potential kb2040 based microPAM could be wired like this kb2040

kb2040/RP2040 based prototype#

A potential Adafruit kb2040 based microPAM could look like this

kb2040_p

with the dimension 58 x 46 mm

This prototype uses some different components: the Adafruit I2S MEMS is relaced with a ICS-43432 microphone, and the SD card holder is from Sparcfun “SparkFun microSD Transflash Breakout” “BOB-00544” for 5,50 USD