Project Overview and Design Analysis

Explain this project.
Describe its purpose, core components, and how they interact.
Break down the design, implementation, and functionality. Highlight key technologies, dependencies, and design choices, including trade-offs and optimizations.
Discuss potential challenges, performance considerations, and real-world applications. If applicable, suggest areas for improvement, scalability, and future enhancements.
I’ll inspect the schematic, BOM, layout, and review status, then summarize the project architecture and trade-offs from the actual design data.
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Review and document
Power architecture
Schematic and BOM
Check manufacturability
C2
Capacitance
100nF
C4
Capacitance
100nF
C20
Capacitance
10uF
C12
Capacitance
100nF
C13
Capacitance
27pF
C1
Capacitance
100nF
C10
Capacitance
100nF
C26
Capacitance
100nF
C9
Capacitance
100nF
C5
Capacitance
100nF
C6
Capacitance
100nF
C25
Capacitance
100nF
C11
Capacitance
1uF
C8
Capacitance
1uF
C3
Capacitance
100nF
C7
Capacitance
100nF
MIC_SCL
QSPI_SD0
QSPI_SS
SD_DATA1
LORA_RX
LORA_NRST
SD_CLK
QSPI_SD2
SD_CMD
QSPI_SD1
SD_DATA3
XOUT
LORA_RX
LORA_NRST
C24
Capacitance
10uF
SD_DATA0
~USB_BOOT
QSPI_SS
SD_CMD
MIC_SDA
QSPI_SD3
SD_CLK
LORA_TX
SD_DATA2
SD_DATA2
DHT_DATA
LORA_TX
SD_DATA1
QSPI_SCLK
USB_D-
QSPI_SD1
C22
Capacitance
4u7 F
XOUT
SD_DATA0
XIN
SD_DATA3
QSPI_SD2
QSPI_SCLK
QSPI_SD3
QSPI_SD0
USB_D+
MIC_WS
EXTERNAL FLASH CIRCUIT
+3V3
D2
Color
Green
User LED for blinking and testing the board
LoRa MODULE
Pull up resistors
Line 1
R6 and r9 are are pull ups for the SD Card line
Line 2
Line 2
Termination resistors
+3V3
+3V3
C8 Should be close to pin 44 of RP2040
MICROCONTROLLER
+1V1
+3V3
+1V1
C11 Should be close to pin 45 of RP2040
+1V1
+3V3
+3V3
SD CARD CIRCUIT
+3V3
+3V3
+3V3
R19
Resistance
1k5 Ω
R9
Resistance
10kΩ
R4
Resistance
1kΩ
R2
Resistance
27.4 Ω
R18
Resistance
1kΩ
R16
Resistance
50 Ω
R17
Resistance
50 Ω
R1
Resistance
27.4 Ω
R3
Resistance
10kΩ
R6
Resistance
10kΩ
SW1
SW2
U1
J1
U2
U6


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AvocAudio: A tinyML community board v1

AvocAudio is a compact tinyML community board designed for extensive audio data collection for various tinyML applications. It leverages the Raspberry Pi RP2040 and integrates a LoRa-E5 LoRaWAN Transceiver Module for connectivity. Equipped with an SD card slot for local data storage, the board ensures efficient data collection. The board operates on solar power or a lithium-ion battery, ensuring flexible and efficient energy use. #audioDevices #raspberryPi #rp2040 #lorawan #iot #solar

Properties

Scientific

RoHS

3.3

LoRaWAN

Buttons

Microphone, Temperature sensor, Humidity sensor

SD Card

Audio

Pricing & Availability

Distributor

Qty 1

Arrow

$3.02–$3.65

Digi-Key

$5.42–$8.13

LCSC

$7.20–$7.93

Mouser

$8.32

Verical

$2.63–$3.32

Controls