• Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    A net identifier used to create connectivity to other Net Portal with the same designator. #portal
  • Power Net Portal
    Power net portal is a special schematic object used to define a power or ground net. Power ports allow you to conveniently indicate a power net at any location in the design. Power nets of the same designator automatically connect throughout your design #portal #power
  • Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
  • Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
  • RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
  • 875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
@copilot, develop an FMEA (Failure Mode and Effects Analysis) report in a table ...

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are any of my components missing pin connections that will cause failures?

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what is the total power consumption of this project. Also calculate how a 4000mA...

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, review the design to ensure all current-limiting resistors for LEDs are correc...

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Determine the efficiency of U4 at various load conditions, considering that the ...

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From the datasheet of U2 List the pin names, functions, and additional attribute...

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create a detailed step by step plan table for this project to verify its functio...

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, perform a BoM consolidation review to identify passive components that are mar...

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in a table format and Based on the specifications of this IC, including the maxi...

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8
I need to optimize the Bill of Materials (BOM) for this PCB design to reduce the...

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C2
Capacitance
100n F
C4
Capacitance
100n F
C14
Capacitance
27p F
C13
Capacitance
27p F
C1
Capacitance
100n F
C10
Capacitance
100n F
C26
Capacitance
100n F
C9
Capacitance
100n F
C25
Capacitance
100n F
C11
Capacitance
1u F
C3
Capacitance
100n F
C17
Capacitance
10u F
MIC_SCL
VUSB
LORA_NRST
Cl = 2(Ccap_load - Cstray)
SOLAR POWER INTERFACE
R14
Resistance
6k8 Ω
R8
Resistance
15k Ω
VBAT
R13
Resistance
68k Ω
USB_D-
XOUT
LORA_RX
C24
Capacitance
10u F
U3
C18
Capacitance
100n F
XIN
Q1
R18
Resistance
1k Ω
MIC_SDA
R11
Resistance
1k5 Ω
Q1 Disconnects SOLAR input when both SOLAR and USB are connected. NOTE: This is a depletion type mosfet
R16
Resistance
50 Ω
U5
L2
Inductance
2u2 H
LORA_TX
D4
Color
Red
+3V3
C19
Capacitance
68p F
R17
Resistance
50 Ω
U1
C21
Capacitance
100n F
R7
Resistance
2k Ω
I_ch = (Vset / Rset) * 900 = 900mA
XOUT
+1V1
XIN
MIC_WS
USB_D+
C23
Capacitance
100n F
D5
Color
Green
Y1

AvocAudio: A tinyML community board v1

AvocAudio: A tinyML community board v1
Description

Created
Last updated by collinsemasi
3 Contributor(s)
collinsemasi
jharwinbarrozo
kerry

Controls

Properties

Domain
Scientific
Compliance
RoHS
Operating Voltage
3.3
Connectivity
LoRaWAN
Human Interface
Buttons
Sensor Interface
Microphone, Temperature sensor, Humidity sensor
Data Storage
SD Card
Data type
Audio

Availability & Pricing

DistributorQty 1
Arrow$12.41–$13.63
Digi-Key$13.66–$17.50
LCSC$35.46–$36.70
Mouser$18.34–$18.55
Verical$2.84–$3.93

Assets

LoRa-E5 Module Overview

@file Explain @U6 in detail, including its purpose, key functions, and common applications. Describe how it operates within a circuit and any notable characteristics. Also, explain the family or series this component belongs to, highlighting its variations, key differences, and typical use cases compared to other models in the series.

Using

General
Project
U6
Below is a detailed explanation of U6, which in this design is the LoRa-E5 (STM32WLE5JC) module:

Purpose and Key Functions
  • Wireless Connectivity: The LoRa-E5 module is built to enable long-range, low-power data communication using LoRa modulation. This makes it ideal for IoT and sensor network applications where extended range and battery life are critical.
  • Integrated Transceiver: It combines an RF front-end with the STM32WLE5JC core, which not only handles LoRa modulation/demodulation but also provides on-chip processing capabilities.
  • Protocol Support: The module is designed to support LoRaWAN and related proprietary protocols, allowing flexible integration into networks that require reliable and secure long-range communications.
Operation Within a Circuit
  • Signal Processing: In a typical circuit, the module serves as the wireless bridge. It converts digital data from the host microcontroller (or sensor payloads) into LoRa-modulated RF signals for transmission, and vice versa for reception.
  • Interfaces: The device usually provides standard communication interfaces (such as SPI or UART) to connect with the main processor in the system, ensuring seamless integration into existing systems.
  • Power Considerations: Designed for low-power operation, it often operates on a regulated 3.3 V supply and includes power management features that reduce current consumption during idle or sleep states.
Family, Series, and Variations
  • LoRa-E5 Family: The module is part of the LoRa-E5 series, which is known for its high integration of both RF and MCU elements.
  • Key Differences Within the Series:
    • Frequency Band Options: Variations in the series often address different regional ISM band requirements (e.g., 433 MHz, 868 MHz, 915 MHz).
    • Output Power and Sensitivity: Some models may offer higher transmission power or enhanced receiver sensitivity, which can be optimized based on application needs.
    • Firmware and Feature Sets: Different variations may support additional firmware features or interfaces depending on the intended use case (ranging from simple sensor uplinks to two-way communication in smart applications).
  • Comparison to Other Models: Modules in the LoRa-E5 series typically strike a balance between integration, performance, and low-power operation. Compared to discrete implementations or older LoRa modules, they offer a more compact solution with fewer external components and simpler board layout design.
Typical Applications
  • Remote Monitoring: Owing to its long-range capability and low power, it is well-suited for environmental monitoring, smart agriculture, and industrial sensing.
  • Asset Tracking: The module can be used for tracking and telemetry in logistics and asset management.
  • IoT Gateways and Sensor Nodes: Its integration simplifies the design of sensor nodes and gateways that need to communicate over wide areas with minimal infrastructure.
In summary, U6 (LoRa-E5 with STM32WLE5JC) plays a central role in providing robust long-range wireless communication to the tinyML community board design. Its integrated architecture, support for various frequency bands, and low-power design make it a versatile choice when compared to earlier or less integrated transceiver solutions.
RF layout guidelines
Antenna selection
SPI pin assignment
Decoupling capacitors
Power consumption

Checks that the power traveling across a given resistor is under its rating with 50% headroom.
Learn more
Checks that IC pins that require pull up or pull down resistors have them.
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Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.
Checks that all parts have a part number and are available from distributors.
Reports issues with Auto-Layout if Copilot cannot route something or must ignore a configuration.
Reports copper elements that are shorting.
Reports parts that have no footprint.
Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.
Designator
Ruleset
Reports terminals that are not connected properly. NOTE: Only connections to the center of pads are considered valid.
Reports nodes that are using rules that are not supported anymore.
Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.