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Welcome to Flux
Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More
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Write a project description
Find schematic issues
Create a test plan
Simulate a circuit
Prepare for Manufacturing
Component Selection Workflow
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Write I2C initialization code
Generate firmware skeleton
J1
U1
Now when I have connected everything why dosen't I see the connection when I loo...
2y
In Flux (and similar electronics CAD programs), the process of going from a schematic design to a PCB layout involves several steps, and it might not be immediately apparent how to transfer your connections from the schematic to the PCB. Here's a general overview of the process and some keypoints you might need to check:
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Schematic Design: This is the stage where you have been working. You create symbols for each component and wire them together according to your design. It sounds like you have completed this part.
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Update or Generate Netlist: The netlist is a crucial bridge between your schematic and the PCB layout. It contains information on how all components are connected but doesn't care about their physical placement. Ensure you have generated (or updated) the netlist after completing your schematic design. In some tools, this step is automatic, but in others, you might need to do it manually.
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Import Netlist into PCB Layout: With your netlist ready, the next step is importing it into the PCB layout side of Flux. This process translates your schematic connections into a form that the PCB layout editor can use to show which pins are electrically connected.
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Component Placement: Once the netlist is imported, you'll see the components appear in the PCB layout editor, but they will not be physically connected yet. Your job now is to place the components according to your design considerations (size, heat, signal integrity, etc.).
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Routing: After placing your components, you need to manually draw the traces that physically connect the pins as described in the netlist. Some tools offer auto-routing capabilities, but manual routing often yields better results, especially for complex or high-performance circuits.
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DRC (Design Rule Check): Once routing is complete, you should perform a DRC. This tool checks your PCB layout against a set of rules (minimum trace width, minimum spacing, etc.) to ensure manufacturability and reliability.
If you're not seeing connections in the PCB layout, here are a few things to check:
- Netlist Updated and Imported: Make sure your netlist reflects your final schematic design and has been imported into the PCB layout tool.
- Layers and Visibility: Ensure that the layers you've routed on are visible. Some tools may have options to hide certain layers, which could make it appear as though connections are missing.
- Zoom and View Settings: It's possible the connections are there, but you're either zoomed out too much or the view settings are not showing the traces properly.
Remember, the transition from schematic to PCB layout involves both automated steps and manual intervention. If you've completed the steps above and still don't see the connections, there might be a specific issue with how Flux handles the netlist import or a setting that needs to be adjusted.
2y
7
U2 DAT2 - U1 IO17
U8 VOUT - U1 3V3
SW1 B - U1 IO12
IC2 BCK - U1 IO10
U4 DO - U5 DI
U8 VOUT - U1 3V3
U6 DO - U7 DI
U9 P20 - U1 IO21
U2 DAT0 - U1 IO19
U9 P8 - U1 GND
IC2 DIN - U1 IO9
J1 VBUS4 - IC1 VBUS
J1 VBUS4 - IC1 VBUS
SW1 B - U1 IO12
U9 P8 - U1 GND
IC2 LRCK - U1 IO11
J1 VBUS4 - IC1 VBUS
SW2 P1 - U1 IO15
SW2 P1 - U1 IO15
J1 VBUS4 - IC1 VBUS
U3 DO - U4 DI
U2 DAT1 - U1 IO18
J1 VBUS4 - IC1 VBUS
U4
U6
IC1
U7
U5
SW1
U8
IC2
Reviews
A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibraryjharwinbarrozo16.2k- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. 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, 10000uF 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, 220pF, 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 #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibraryjharwinbarrozo1.5M
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- General Purpose Thick Film Standard Power and High-Power Chip Resistor 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film Features: - RMCF – standard power ratings - RMCP – high power ratings - Nickel barrier terminations standard - Power derating from 100% at 70ºC to zero at +155ºC - RoHS compliant, REACH compliant, and halogen free - AEC-Q200 compliantjharwinbarrozo1.2M
- 10 µF 16 V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 2000 Hrs @ 105°C #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlinkjharwinbarrozo700.5k
MPlay
Welcome to your new project. Imagine what you can build here.
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Digi-Key | $14.63–$23.80 |
LCSC | $38.38–$38.48 |
Mouser | $31.39 |
Controls
Welcome 👋
Flux helps you build PCBs faster with an AI teammate!
Create your account to collaborate, stay updated, fork your own version, and get instant answers from our AI agent.
pellzo
copilot
- Connect J1:VBUS4 to IC1:VBUS for power input. (VBUS4 is chosen arbitrarily among VBUS pins based on your setup; any VBUS pin can serve the purpose if VBUS4 isn't specifically required elsewhere.)
- Connect J1:GND4 to IC1:GND to complete the power circuit. (Similarly, any GND pin would work if GND4 isn't specifically needed elsewhere.)
For the Buttons and Rotary Encoder to U1 (ESP32):pellzo
copilot
pellzo
copilot
pellzo
copilot
- VBUS Power Input:
- Connect J1:VBUS1 (you can choose any of the VBUS pins: VBUS1, VBUS2, VBUS3, or VBUS4) to IC1:VBUS. This connection will allow IC1 to receive power from the USB-C port for charging the battery and running the system.
- Connect J1:GND1 (similarly, you can use any of the GND pins: GND1, GND2, GND3, or GND4) to IC1:GND. This completes the ground path for USB-C power input.
Hypothetical Battery Connector (J2) to IC1:- Assuming J2 is a battery connector with PIN1 as positive and PIN2 as negative.
- Connect J2:PIN1 to IC1:VBUS. It will allow IC1 to draw power from the battery when USB-C is not connected.
- Connect J2:PIN2 to IC1:GND.
Buttons (SW1, SW2, and SW3) and Rotary Encoder (SW1) to ESP32 (U1):- Assuming digital IO pins of ESP32 are used for button inputs with internal pull-up resistors enabled in software:
- Rotary Encoder (SW1):
- Connect SW1:A to U1:IO14.
- Connect SW1:B to U1:IO12.
- Note: SW1:MP1 (the pushbutton part of the encoder) should be connected to ground (U1:GND) via a separate connection if it's intended to be used.
- Button 1 (SW2):
- Connect SW2:P1 to U1:IO15.
- The other pin of SW2 (likely PIN2 or PIN3 based on naming) would go to U1:GND. (Adjust accordingly if the SW has different pin names.)
- Button 2 (SW3):
- Connect SW3:P1 to U1:IO16.
- The other pin of SW3 similarly connects to U1:GND.
Important Considerations:pellzo
copilot
- When USB-C is Connected (and Power is Available): The IC will utilize power from the USB-C to run the system and charge the battery simultaneously. The power does not flow directly from USB-C to the battery; instead, IC1 controls the charging process, ensuring safe charging parameters are met.
- When USB-C is Disconnected: The IC automatically switches to battery power, supplying the system from the battery.
Direct Connection:- The direct connection of both J1 (USB-C VBUS) and J2 (Battery positive) to IC1:VBUS is by design, as IC1 internally manages these inputs. It does not mean there's an unprotected electrical path from USB-C to the battery or vice versa. IC1's internal circuitry is designed to safely manage power inflow from USB and battery outflow when needed, incorporating protections like overvoltage, overcurrent, and thermal protection.
Conclusion: