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Here’s the summary of progress:
Work completed
  • Project description, properties, and system architecture documented
  • Added and configured: ESP32 MCU, LoRa transceiver, GPS module, SSD1306 OLED
  • Added power/connectivity: USB-C port, Li-ion charger, 3.3 V regulator
  • Placed decoupling (100 nF) and bulk (10 µF) capacitors; pull-ups on EN/RST; 0.1 µF on EN; I²C pull-ups for OLED
  • Added RF matching components for 868 MHz
  • Added connectors, programming/test pads, SW/BOOT buttons, and u.FL antenna port
  • Completed net connections for power, SPI, UART, and I²C
  • Reviewed schematic, updated capacitor voltage ratings, and set Absolute Max Supply Voltages for all major ICs
  • Verified all footprints, defined board size (50 mm × 30 mm), and added mounting holes
Tasks pending
  • Confirm specification choices (LoRa_frequency, Power_source, OLED_interface, OLED_size)
Unimplementable tasks
  • Reserving RF keepout areas on the schematic
  • Selecting and setting the PCB stackup
  • Assigning copper layers for power/ground planes and enabling ground fills
Success criteria status
  • ✔️ All major modules integrated with proper power and decoupling
  • ✔️ Programming/test pads, EN/RST pull-ups, and EN capacitor in place
  • ✔️ Interfaces (SPI, UART, I²C) correctly assigned without conflicts
  • ⚠️ RF keepouts and ground stitching not yet reserved (incomplete RF section)
  • ⚠️ PCB layout rules (stackup and copper planes) not yet set (incomplete PCB preparation)
Next step Please review and confirm the chosen specifications so I can finalize the schematic and proceed with component placement and PCB layout configuration.
47 days

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  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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  • Net Portal
    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
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  • Power Net 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
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  • Generic Resistor
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    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
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  • Generic Capacitor
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    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
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  • Generic Inductor
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  • Terminal
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    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
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  • 875105359001
    875105359001
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  • CTL1206FYW1T
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Generic Diode

Generic Diode
Description

Created
Last updated by jharwinbarrozo
1 Contributor(s)
jharwinbarrozo

Controls

Properties

Manufacturer Name
Manufacturer Part Number
Package
SMD_0603_1608Metric
Datasheet URL
Part Type
Diode
Power_source
USB-C + Li-ion battery
LoRa_frequency
868 MHz
OLED_interface
I2C
Board Size
50 mm x 30 mm
System Architecture
```mermaid flowchart TD subgraph MODULE ESP32["ESP32 MCU"] LORA["LoRa Transceiver"] GPSR["GPS Receiver"] OLED["OLED Display"] end subgraph POWER USB_C["USB-C Input"] BAT["Li-ion Battery"] CHG["Battery Charger"] REG["Voltage Regulators"] end subgraph CONNECTIVITY SPI["SPI Bus"] UART["UART Bus"] I2C["I2C Bus"] AFL["u.FL Antenna"] PADS["Prog Test Pads"] end USB_C --> CHG --> REG BAT --> CHG REG --> ESP32 REG --> LORA REG --> GPSR REG --> OLED ESP32 --> SPI LORA --> SPI ESP32 --> UART GPSR --> UART ESP32 --> I2C OLED --> I2C SPI --> AFL PADS --> ESP32 ```
Designator Prefix
D
OLED_size
0.96 inch

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