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/RP2040 based prototype#
A potential Adafruit kb2040 based microPAM could look like this
with the dimension 58 x 46 mm
This prototype uses some different components: the Adafruit I2S MEMS is relaced with a ICS-43432 microphone from Peski, and the SD card holder is from Sparcfun “SparkFun microSD Transflash Breakout” “BOB-00544” for 5,50 USD
RP2040 based prototype#
A microPAM recorder with a standard rp2040 could look like this, here using a custom made ICS-4332 microphone und wired on the fly (not visible on the back of the board)
