Chat
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
Explain project
Write a project description
Find schematic issues
Create a test plan
Simulate a circuit
Prepare for Manufacturing
Component Selection Workflow
New Subsystem Wizard
Ready.
list all ICs and the decoupling capacitors attached to each.
Ensure to include a...
@copilot list all ICs and the decoupling capacitors attached to each.
Ensure to include all ICs present in the design, including digital ICs, power converters, LDOs, etc.
For every IC, clearly state:
- What power net the decoupling capacitors are attached to. What is the stated voltage of that net.
- The voltage rating and value of the attached decoupling capacitors.
- Signal with the expression “[WARNING]” if any of the following conditions are met: no decoupling capacitors are attached; the voltage of the power net is higher than the voltage rating of the capacitor; No voltage range was stated for the capacitor. Give a separate “[WARNING]” for each condition. Signal with the expression “[OK]” if none of those conditions are met
- Express the result in a markdown-formatted table
2y
Here's a summary of the ICs in your design and their associated decoupling capacitors:
Table
| IC | Power Net | Net Voltage | Cap MPN | Cap Value | Cap Voltage Rating | Notes |
|---|---|---|---|---|---|---|
| U6 (102010428) | +3V3 | +3.3V | GRM188R61A106KE69D | 10u | 10V | [OK] |
| U3 (SY6280AAAC) | +3V3 | +3.3V | GRM188R61A106KE69D | 10u | 10V | [OK] |
| U1 (RT8059GJ5) | VBAT | Battery voltage (assumed less than 5V) | GRM188R61A106KE69D | 10u | 10V | [OK] |
| U2 (CN3063) | VBAT | Battery voltage (assumed less than 5V) | GRM188R71H104KA93D | 100n | 50V | [OK] |
| IC1 (MT3608L) | VBAT | Battery voltage (assumed less than 5V) | GRM188R60J226MEA0D | 22u | 6.3V | [WARNING – The voltage of the power net may exceed the voltage rating of the capacitor if the battery voltage goes over 6.3V] |
| IC2 (SP3481CN-L/TR) | +3V3 | +3.3V | GRM188R61A106KE69D | 10u | 10V | [OK] |
I assumed that the voltage of the VBAT net is less than 5V, which is a common range for Li-ion batteries. If the battery voltage exceeds 5V, you may need to replace the decoupling capacitors of U1 and IC1 with capacitors rated for a higher voltage to prevent excessive voltage stresses. Be sure to confirm the maximum and normal operating conditions of your battery and all components connected to the VBAT net. You can correct this assumption if it is not valid for your design.
Capacitor part numbers, values, and voltage ratings are based on the provided components and their datasheets. While U4 (317990687) is an IC in your design, there is no explicit information in the project text regarding its decoupling capacitors.
Remember to locate the decoupling capacitor as close to the supply pin of the IC as appropriate to maximize their effectiveness. In addition, double-check the footprint and package compatibility of your selected capacitors with your PCB layout.
2y
4
Check that all reset/enable have an external pull-up or pull-down resistors. Rep...
2y
The following designators are associated with reset/enable in this project: NRST, ENABLE, U2, and SW1. I'll check each of them for a pull-up or pull-down resistor.
-
Designator: NRST
- This net is connected to a reset pin of component U4.
- According to the schematic, there is a pull-up resistor (R18) connected to NRST. No action is required for NRST.
-
Designator: ENABLE
- This net is connected to the control pins DE and
REof the RS485 transceiver IC2. - I don't see any pull-up or pull-down resistor connection for the ENABLE net in the schematic provided. Action: Add either a pull-up or pull-down resistor to the ENABLE net depending on the RS485 transceiver IC2 input requirements.
- This net is connected to the control pins DE and
-
Designator: U2
- U2 has the pins ~DONE, ~CHARG, and EN which are output, output, and input respectively.
- The ~DONE pin doesn't need a pull-up or pull-down resistor because it's an output.
- The ~CHARG pin is also listed as an output, so it doesn't need a pull-up or pull-down resistor.
- The EN pin is being directly driven from the power supply it doesn't have a pull-up or pull-down resistor. This is okay if this input to the IC is expected to always be the same as the supply voltage, otherwise, action could be needed here.
-
Designator: SW1
- It looks like SW1 is an input, with its state determined by associated resistors R1 and R9. R1 could act as a pull-down when SW1 is open, and R9 could act as a pull-up when SW1 is closed. At a glance, it seems like this setup is appropriate for SW1. No action required for SW1.
Please bear in mind that without full knowledge of all project requirements and the behavior of all components used, these recommendations are given based on the best practices and common uses of these components and may not match the intended design. Therefore, it is always advisable to double-check these aspects with a detailed inspection or simulation.
2y
5
C11
Capacitance
4u7 F
R11
Resistance
22 Ω
U4
R18
Resistance
22 Ω
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- 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 #CommonPartsLibraryjharwinbarrozo1.5M
- 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 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 #CommonPartsLibraryjharwinbarrozo1.5M
- 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 #genericsjharwinbarrozo15.5k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
The "Green Dot 2040E5" Board is a Node that interfaces RS485 Sensor probes and can log information to the cloud using LoRa Connectivity. It uses the XIAO RP2040 and the LoRa-E5 (STM32WLE5JC) modules from Seeed Studio to do its magic. It also has amazing power management capabilities (Solar charging, Battery protection, etc) that make it very useful for IoT applications
#SeeedStudio #XIAO #LoRa #RP2040 #IoT
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Digi-Key | $16.16–$17.88 |
LCSC | $29.70–$31.42 |
Mouser | $19.22–$19.70 |
Assets
flux logo.svg
flux logoDefault
image-removebg.png
image-removebgThumbnailControls
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.
nico
copilot