• 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
how do I use Flux?

@copilot how do I use Flux?
14d
Using Flux is a straightforward process. Here's a general guide to get you started:
  1. Create an Account: Begin by creating an account on Flux. You can sign up here[1].
  2. Learn the Basics: Familiarize yourself with the interface and tools. You can check out Flux’s documentation for a comprehensive look at its features and how to integrate them into your workflow[2].
  3. Migrate Existing Projects: If you're switching from another CAD program like EasyEDA or KiCad, there are tutorials available to help you migrate your projects to Flux[3][4].
  4. Design Your Schematic: Start designing your circuit schematic by placing components from the library onto the canvas. You can then connect them as needed.
  5. Simulate Your Design: Use the simulator to test your circuit before creating a PCB. There are tutorials available to help you understand how simulation models run inside Flux[5].
  6. Create a PCB Layout: Once your design is confirmed, you can proceed to lay out the PCB by arranging components and routing traces.
  7. Finalize and Manufacture: After completing your design, you can download the necessary files for manufacturing your PCB.
If you have any specific questions or need help with a particular feature, feel free to ask!
14d
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create a high level mermaid block diagram of this project. Include key component...

@copilot create a high level mermaid block diagram of this project. Include key component's manufacturer part number in each block whenever possible.
18d
Certainly! Here's a high-level mermaid block diagram of your ESP32-WROOM-32E based project. This diagram includes the key components and their manufacturer part numbers:

Image


USB_Interface
MCU
Power_Supply
USB-C Connector
TYPE-C-31-M-12
USB to Serial Converter
CH340C
ESP32-WROOM-32E
ESP32-WROOM-32E
Voltage Regulator
AMS1117-3.3
Explanation:
  • USB-C Connector (TYPE-C-31-M-12): This block represents the USB-C interface which is used for power and data transfer.
  • Voltage Regulator (AMS1117-3.3): This provides regulated 3.3V to the ESP32.
  • ESP32-WROOM-32E (ESP32-WROOM-32E): The main microcontroller unit of the system.
  • USB to Serial Converter (CH340C): Used to convert USB signals to serial for communication with the ESP32.

1

18d
if i were to write up an online course to show step-by-step how to make this design from scratch, can you tell me which order to build this design? including important datasheet details for each device?
18d
Creating an online course to guide users step-by-step on building this ESP32-WROOM-32E-based design from scratch is a great idea! Here's a suggested order with key steps and important datasheet details to include:
Module 1: Introduction to the Project
  • Overview of the project and its applications.
  • Introduction to the main components:
Module 2: Understanding the Components and Reading Datasheets
  • ESP32-WROOM-32E:
    • Detailed walkthrough of the ESP32 datasheet: pinout, power supply requirements, GPIO capabilities, communication interfaces $UART, SPI, I2C$.
    • Mention operating conditions, especially power consumption modes.
  • CH340C:
    • Explain what USB to serial conversion is and why CH340C is used.
    • Datasheet focus: Power requirements, pin descriptions, and typical application circuits.
  • AMS1117-3.3:
    • Discuss voltage regulation, specifically converting 5V from USB to 3.3V for ESP32.
    • Datasheet focus: Output voltage accuracy, dropout voltage, and thermal considerations.
  • USB-C Connector (TYPE-C-31-M-12):
    • Simple explanation of USB-C features.
    • Important specs: Pinout, mechanical stability.
Module 3: Schematic Design
  • Schematic overview using Flux:
    • Explain how to add components to the schematic.
    • Connecting Components:
      • Connect USB1:VBUSUSB1:VBUS to U1:VINU1:VIN and C5:P1C5:P1 for power input.
      • Connect U1:VOUTU1:VOUT to U2:VDDU2:VDD for regulated 3.3V power.
  • Power Supply Design:
    • Adding decoupling capacitors: Place C3C3 and C6C6 near the ESP32 VDDVDD and GNDGND pins.
    • Mention the importance of decoupling capacitors in power supply stability.
  • Microcontroller Connections:
    • Basic connections of GPIOs.
    • Ensure ENEN (enable) and IO0IO0 (boot mode selection) are correctly interfaced.
Module 4: Layout Design
  • PCB layout design principles:
    • Stress the importance of component placement and routing best practices.
    • Layout considerations: Keep traces short, minimize loop areas in power lines, and separate analog and digital grounds if possible.
Module 5: Firmware Development and Testing
  • Setting up the ESP32 development environment.
  • Writing and uploading a basic program to test UART communication via CH340C.
Module 6: Testing and Debugging
  • Testing each module segment: ensuring voltage levels are correct before powering all sections.
  • Troubleshooting common issues: Power, communication, EMI concerns.
Additional Resources
  • Datasheets for each component: Highlight the key sections and specifications.
  • Recommended tools for design and testing: Flux, Multimeter, Oscilloscope.
This course should give learners a comprehensive understanding of building the ESP32-WROOM-32E design from scratch, with clear insights into component functionality, schematic and PCB design, and testing methodologies. Feel free to add exercises and quizzes to test learners' understanding throughout the course!
18d
give me a high-level description of this project and what i can do with it. as if i'm teaching an engineer why we're even making this project.
14d
High-Level Description of the ESP32-WROOM-32E Reference Design
This project is a reference design centered around the ESP32-WROOM-32E module, aimed at engineers looking to build devices with robust wireless connectivity capabilities. It's designed to be a comprehensive guide that showcases how to effectively utilize an ESP32 module in a product, featuring key components like USB-C connectivity, onboard voltage regulation, and a USB-to-serial converter.
Key Features and Components
  • ESP32-WROOM-32E: This is a powerful microcontroller with built-in Wi-Fi and Bluetooth capabilities. It provides designers with rich features to build a wide range of connected applications.
  • USB-C Connectivity: Modern power and data transfer standard, allowing for easy interfacing and charging.
  • Voltage Regulation (AMS11173.3AMS1117-3.3): Converts 5V from USB-C to the 3.3V required by the ESP32, ensuring stable operation.
  • CH340C USB-to-Serial Converter: Facilitates communication between the ESP32 and the computer, enabling easy programming and debugging.
Potential Applications and Use Cases
  • IoT Devices: This design can be used as a basis for developing a variety of Internet of Things (IoT) applications, such as smart home devices, environmental sensors, or industrial monitoring systems.
  • Prototyping Platform: Engineers and developers can use this reference design to quickly prototype and test new ideas, leveraging the ESP32's extensive capabilities for wireless communication and sensor interfacing.
  • Embedded Systems Learning Tool: This project can serve as an educational tool for learning about embedded systems design, wireless communication, and microcontroller programming.
Why Build This Project?
  • Practical Understanding: By engaging with this project, engineers gain hands-on experience with critical concepts in modern electronics design, such as power management, communication protocols, and PCB layout techniques.
  • Foundation for Advanced Projects: This reference design provides a solid foundation upon which more complex applications can be built, reducing development time and risk associated with starting from scratch.
  • Versatility: With its comprehensive feature set, the design can be adapted and expanded to fit a wide range of applications and use cases, making it a versatile tool for engineers.
Overall, this project is not just about the creation of a functional device; it's also an opportunity to explore cutting-edge technology, enhance problem-solving skills, and innovate new solutions in the rapidly growing field of connected devices.
14d
Someone is typing...
3
ESP_TX
ESP_IO0
+3V3
R4
Resistance
1k Ω
Q1
R3
Resistance
Resistance
5.1k Ω
U2
ESP_RX
CC2
IC1
Q2
ESP_EN

ESP32-WROOM-32E Reference Design 0a6b

ESP32-WROOM-32E Reference Design 0a6b
Created
January 18th 2025
Last updated by pokemonprofessor
15 days ago
1 Contributor(s)
pokemonprofessor

Controls

Properties

Availability & Pricing

DistributorQty 1
Arrow$0.18–$0.67
Digi-Key$1.13–$10.20
LCSC$5.49–$6.16
Mouser$1.63
Verical$0.13–$0.38

Assets

Simulation

µs

Simulation Speed

Hi! I'm Copilot, I can help with your projects: To learn more, check out Gettin...
Hi! I'm Copilot, I can help with your projects:
@copilot explain this project.
@copilot are there any issues in this project?
@copilot how can I build a schematic with Flux?
To learn more, check out Getting Started with Copilot.
18d
Someone is typing...
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.
Learn more
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 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
*`REF`*
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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.
Detect any via, trace or copper fill island that is not connected to any net.