Main components

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Part NumberDescription
RP2040A microcontroller by Raspberry Pi
D1213A-02SM2 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY
W25Q16JVUXIQ32Mbit / 4MiB Serial Flash Memory, Standard/Dual/Quad SPI, 2.7-3.6V, WSON-8
MIC5317-1.8YD5
AP2127K-3.3
USBLC6-2SC6Very low capacitance ESD protection diode, 2 data-line, SOT-23-6
PCA9306DC1

wifi interposer schematic

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wifi interposer board layout

wifi interposer PCB render

Top PCB
Bottom PCB