LiPo Battery Availability Inquiry

4:25

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Analyzing component queries.

Verifying battery compatibility.

Evaluating breakout resistors for I2C.

Assessing battery design decisions.

Planning component linking and queries.

Using Knowledge Base Tool.

Using Schematic Tool.

Starting 9 component searches

Dispatching Library tool to find: "JST-PH 2-pin battery connector"

Dispatching Library tool to find: "4.7k Resistor"

Dispatching Library tool to find: "1M Resistor"

Dispatching Library tool to find: "100nF Capacitor"

Dispatching Library tool to find: "100Ω Resistor"

Dispatching Library tool to find: "Seeed Studio XIAO ESP32S3 Plus"

Searching: "SHT41"

Searching: "SHT40"

Searching: "TP4056"

Creating search plan for: "JST-PH 2-pin battery connector"

Creating search plan for: "4.7k Resistor"

Creating search plan for: "1M Resistor"

Creating search plan for: "100nF Capacitor"

Creating search plan for: "100Ω Resistor"

Creating search plan for: "Seeed Studio XIAO ESP32S3 Plus"

Searching: "Search for JST-PH series connectors used in battery applications. Looking for a connector that mounts on a PCB to interface with battery circuits. Focus on connectors with 2-pin configurations, low-profile design, and reliable mating for battery management."

Searching: "Identify PCB-mounted connectors from the JST-PH series with a 2-pin configuration specifically for battery connections. The component should offer secure mechanical retention and proper orientation for battery plug-in, ideal for portable electronics with moderate current requirements."

Searching: "Find a 2-pin battery connector from the JST-PH family for a circuit board application. The connector should support battery interfacing in low-current systems, featuring a compact form factor and reliable latching mechanism, suitable for consumer electronics."

Found 56 results.

Searching: "JST-PH 2-pin battery connector"

Searching: "Search for a standard 100nF capacitor designed for general decoupling applications. The capacitor should be a ceramic type with a typical voltage rating around 50V and available in a surface mount package."

Searching: "Find a 100nF multi-layer ceramic capacitor (MLCC) suitable for decoupling and signal filtering in high-speed digital circuits. Key characteristics include X7R dielectric material, 50V DC rating, and common SMD footprints such as 0603 or 0402."

Searching: "Identify a high-performance 100nF capacitor with an X7R dielectric in an SMD format (preferably 0603 or 0402) for use in decoupling high-frequency digital circuits. Requirements include low ESR and reliable performance over a wide temperature range for dense PCB applications."

Found 60 results.

Searching: "100nF Capacitor"

Searching: "Search for a generic 100 ohm resistor typical for current limiting or biasing purposes in electronic circuits. The part should meet basic resistor specifications (nominal value 100Ω) without initial restrictions on package or power rating, to survey a wide range of available options."

Searching: "Identify a surface-mount resistor with a 0603 footprint having a nominal value of 100 ohm. The part is intended for dense PCB layouts and moderate power dissipation (e.g., 0.1W) with common tolerance levels (e.g., 1% to 5%). Emphasis on compact size and automated assembly compatibility."

Searching: "Locate an axial lead resistor with a 100 ohm nominal value, aimed at applications where discrete wire-wound or carbon film resistors are required, such as in prototyping or high-power circuits. Expected features include a 1/4W power rating, standard tolerance, and through-hole mounting for robust mechanical handling."

Searching: "Looking for a standard PCB-mounted resistor with a nominal value of 4.7k ohm. This resistor is intended for general circuit applications such as voltage dividers or biasing, with unspecified tolerance, power rating, or package type."

Searching: "Searching for a surface mount resistor with a resistance of 4.7k ohm intended for PCB assembly. The resistor may be used for applications like voltage division, and candidates should cover typical SMD packages (e.g., 0805) with general tolerance and power ratings."

Searching: "Targeting a high-precision 4.7k ohm resistor in an 0805 SMD package with a 1% tolerance. This component is ideal for noise-sensitive and analog circuits, requiring low temperature coefficient and stable performance in PCB-mounted applications."

Found 56 results.

Searching: "4.7k Resistor"

Found 57 results.

Searching: "100Ω Resistor"

Searching: "Identify the Seeed Studio XIAO ESP32S3 Plus board—a compact development board featuring the ESP32-S3 microcontroller with integrated WiFi and Bluetooth. This search targets exact matches for prototyping IoT and smart device projects with a small footprint and full connectivity."

Searching: "Find ultra-compact development boards built around the ESP32-S3 MCU for IoT applications. Focus on boards that emphasize integrated wireless connectivity (WiFi/Bluetooth), USB-C support, and a design optimized for rapid prototyping in space-constrained projects."

Searching: "Search for development platforms based on the ESP32-S3 chip, highlighting boards that provide comprehensive peripheral support, low-power operation, and robust connectivity. This step targets boards comparable to the XIAO series in terms of size and functionality for embedded systems."

Searching: "Explore Seeed Studio's portfolio of ESP32-based boards, particularly focusing on the newer ESP32S3 variants. Look for boards offering similar features to the XIAO ESP32S3 Plus, including compact design, integrated debugging, and connectivity essentials required for modern IoT applications."

Found 71 results.

Searching: "Seeed Studio XIAO ESP32S3 Plus"

Searching: "Search for a resistor with a nominal resistance of 1MΩ suitable for general purpose applications. The component can be either through-hole or SMD with typical power ratings (e.g., 1/4 watt) and standard tolerances (e.g., 5% or 1%). The goal is to identify common resistor types (metal film, carbon film, thick film) that deliver a 1MΩ resistance."

Searching: "Identify surface mount resistor options with a 1MΩ value in a compact package (such as 0603 or 0805) for space-constrained PCBs. Key factors include standard power ratings, reliability in typical signal or bias applications, and availability in both standard and tighter tolerance variants."

Searching: "Search for through-hole (axial or radial) resistor options with a 1MΩ rating, which are often used in prototype boards or in applications where higher voltage isolation is required. Look for components with a typical 1/4 watt rating and standard tolerance values."

Searching: "Find precision resistor candidates with a 1MΩ resistance that offer tighter tolerances (e.g., 1% or lower) and high stability under varying operating conditions. These are ideal for sensitive circuits like voltage dividers and biasing networks where accuracy is critical."

Found 72 results.

Searching: "1M Resistor"

Completed 9 component searches.

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Proceeding with caution on project additions.

Dzięki za opis. Kilka krótkich uwag i potwierdzeń pod Twoją aplikację oraz w kontekście naszej backplane z USB‑C PD.
I2C i SHT4x
  • Twój opis połączeń I2C (SDA/SCL) z XIAO jest OK. W ESP32‑S3 piny I2C są konfigurowalne, więc użycie GPIO4/5 jest typową domyślną konfiguracją dla Arduino/IDF.
  • Jeśli breakout SHT4x ma już pull‑upy, nie dodawaj kolejnych w urządzeniu – na jednej magistrali powinien być łącznie tylko jeden zestaw podciągów. Zalecana wartość startowa to 4.7k Resistor, a całkowita pojemność szyny powinna być ≤ 400 pF (zgodnie ze specyfikacją I2C); w razie długich odcinków/większej pojemności można zejść do 2.2 kΩ.
  • Na naszej płycie backplane pull‑upy I2C są podciągnięte do lokalnego 3V3, aby nie back‑powerować modułów.
  • Sensory, o których piszesz: SHT40 / SHT41. Zasilaj je z 3.3 V modułu lub z lokalnego 3.3 V na carrierze.
Zasilanie z Li‑ion + TP4056 vs. nasza backplane
  • W tym projekcie backplane przyjęliśmy zasilanie wyłącznie z USB‑C PD 5 V (do ok. 5 A). W schemacie są wprawdzie pady BAT i BAT-, ale obecnie nie są do niczego podłączone – nie ma włączonej ścieżki akumulatorowej.
  • Twój opis TP4056 z ogniwem 21700 jest poprawny dla samodzielnego węzła. Jeśli chcesz dodać zasilanie bateryjne do tej backplane, trzeba będzie dołożyć OR‑ing (ideal diode/power mux), aby nie wstrzykiwać napięcia z baterii w szynę 5V. Sam TP4056: TP4056. Złącze baterii: np. JST PH 2‑pin.
Pomiar napięcia baterii (dzielnik do ADC)
  • Przy 1 MΩ / 1 MΩ dostaniesz na ADC połowę napięcia baterii: 4.2 V → 2.1 V. Prąd upływu dzielnika to ok. 2.1 µA.
  • Thevenin R źródła to ok. 500 kΩ, więc z kondensatorem 100 nF 100nF Capacitor masz stałą czasową ~50 ms (fc ≈ 3.18 Hz). To świetnie filtruje szum, ale wysoka impedancja może pogarszać dokładność próbkującego ADC (efekt Ibias×R).
  • W praktyce:
    • Dodaj kondensator 100 nF z węzła pomiarowego do GND (jak wyżej) i ewentualnie mały szeregowy 100Ω Resistor do ADC dla ochrony/RC.
    • Jeśli potrzebujesz szybszego i stabilniejszego próbkowania, rozważ zejście do np. 1M Resistor = 220 kΩ/220 kΩ. Wtedy Rth ≈ 110 kΩ, τ ≈ 11 ms (fc ≈ 14.47 Hz), prąd dzielnika ~9.55 µA.
    • Pamiętaj, by w firmware użyć kilku próbek i uśredniania oraz odpowiedniego współczynnika skali (x2).
Dopasowanie do naszej płyty
  • W tej backplane I2C jest współdzielone między ośmioma slotami. To wymaga, by na szynie aktywny był tylko jeden master jednocześnie (ESP32 ma multi‑master, ale praktyka wymaga koordynacji). Jeśli planujesz równoczesną pracę wielu MCU, możemy dodać selektywny multiplekser I2C/bufory odcinające per slot.
  • Na razie nie integrujemy ładowania Li‑ion. Jeśli chcesz, mogę przygotować wariant z wejściem baterii i OR‑ingiem do USB‑C PD oraz dodać dzielnik + RC do pomiaru VBAT na carrierze.
Daj znać:
  • Pozostajemy przy zasilaniu tylko z USB‑C PD, czy dodać opcjonalne wejście baterii (JST‑PH + power mux)?
  • Chcesz, żebym dołożył na płycie backplane punkt pomiarowy VBAT i dzielnik z RC zgodnie z powyższymi zaleceniami?
Odnośniki:
8 days
Zostaję przy zasilaniu tylko z USB‑C PD. @help gdzie ustawić globalne reguły pull-up dla I2C?
8 days

1:00

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Help

Evaluating help tool usage.

Considering tool usage for help.

Reading docs for: "Where to configure global I2C pull-up rules in Flux: enabling and adjusting ERC checks for pull-up/pull-down, setting allowed resistor ranges for I2C nets, tagging nets as I2C (SDA/SCL), using Ruleset or Review panel to manage ERC settings. Steps to open Reviews panel and edit ERC settings for pull-up checks."

Reading docs for: "How to enable or configure pull-up/pull-down ERC checks in Flux, especially for I2C nets (SDA/SCL). Where in the UI to adjust global ERC rules or thresholds and set which nets are checked."

Reading docs for: "How to use the Reviews panel in Flux to configure Electrical Rule Checks, specifically the pull_up_pull_down ERC. Where to set global rules for pull-ups on I2C nets and adjust thresholds."

Planning help tool instructions.

Nie znalazłem w dokumentacji Flux informacji, jak ustawić globalne reguły pull‑up dla I2C (konfigurowalne ERC/rule dla SDA/SCL). To prawdopodobnie nie jest obecnie dostępne jako ustawienie globalne w Flux.
8 days

Ready.


D19
D13
D11
GND
D20 K - F1 1
MTDO
MTDI
D17
3V3
F1 2 - U1 VSYS
D10
D14
D12
5V
GND_1
D16
D18
D15
F1


  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
  • Power Net Portal
    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 #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 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 #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
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • 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

Inspect

Seeed Studio XIAO ESP32S3 Plus

Seeed Studio XIAO ESP32S3 Plus
Description

Created
Last updated by gokux
1 Contributor(s)
gokux

Controls

Properties

Module Dimensions
23.5 mm x 17.8 mm
Manufacturer Part Number
102010671
System Architecture
graph LR UC[USB-C Receptacle] TVS[TVS Diode] EF[Input eFuse/PTC] PD[USB-PD Sink Controller] FiveV[Shared 5V Rail] GND[Shared GND Rail] LDO[LDO 3.3V] PU[I2C Pull-ups] SDA[SDA Bus] SCL[SCL Bus] UC --> TVS --> EF --> PD --> FiveV UC -->|CC1/CC2| PD PD --> GND FiveV --> Slot1[XIAO Slot 1] FiveV --> Slot2[XIAO Slot 2] FiveV --> Slot3[XIAO Slot 3] FiveV --> Slot4[XIAO Slot 4] FiveV --> Slot5[XIAO Slot 5] FiveV --> Slot6[XIAO Slot 6] FiveV --> Slot7[XIAO Slot 7] FiveV --> Slot8[XIAO Slot 8] GND --> Slot1 GND --> Slot2 GND --> Slot3 GND --> Slot4 GND --> Slot5 GND --> Slot6 GND --> Slot7 GND --> Slot8 FiveV --> LDO --> PU PU --> SDA PU --> SCL SDA --> Slot1 SDA --> Slot2 SDA --> Slot3 SDA --> Slot4 SDA --> Slot5 SDA --> Slot6 SDA --> Slot7 SDA --> Slot8 SCL --> Slot1 SCL --> Slot2 SCL --> Slot3 SCL --> Slot4 SCL --> Slot5 SCL --> Slot6 SCL --> Slot7 SCL --> Slot8

Availability & Pricing

DPNStockQty 1
1859$7.99

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