Wrist-Mounted Altimeter PCB Design

flux

2:03

Addressing duplicate components.

Planning to remove duplicates.

Using @action tool for changes.

Analyzing the schematic.

Fetching all components.

Accessing knowledge base.

Preparing for knowledge queries.

Short answer: they were added twice during earlier steps, so you now have duplicate instances of several major parts with the same designators.
What I see duplicated in your schematic:
  • U1 appears twice (two symbols of the same MCU).
  • U2 appears twice (two BMP581 symbols).
  • U4 appears twice (two TP4056 symbols).
  • U5 appears twice (two LDOs).
  • U6 appears twice (two USB ESD arrays).
Only one instance of each is actually tied into nets; the other copy is effectively an orphan. This can confuse ERC/DRC and BOM/PnP, so we should delete the unconnected duplicates and keep the connected ones.
Want me to clean these duplicates now and keep the connected set?
131 days
smd123

smd123

yes clear the duplicates and keep connected sets
131 days

flux

2:44

Planning project modifications.

Identifying duplicates in the schematic.

Removing duplicates effectively.

Managing component duplicates.

Checking if I can make the changes for you.

Specifying component removal.

components to be removed from the project
131 days

Removed 5 components

0:18

131 days
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    SMD V1

    SMD V1 thumbnail
    Compact Low-Power Wrist Altimeter (STM32G070 + BMP580 + 1.77" SPI TFT) – Completed 30 × 20 mm, 2-Layer, 1.6 mm FR-4 PCB Layout Ready for Pre-Manufacturing Review

    Properties

    BAT = Power

    USB_DP = High Speed

    VBUS = Power

    SWD = Medium Speed

    Consumer Electronics

    I2C = Medium Speed

    GND = Ground

    Buttons,Display

    SPI = Medium Speed

    USB

    50

    Backlight_PWM = Medium Speed

    20

    mm

    3V3 = Power

    USB_DN = High Speed

    STM32G070-based wrist altimeter; 2-layer, 1.6 mm FR-4 PCB with all components on top side, solid bottom GND reference plane; single 3V3 domain from LP38693 LDO, USB-powered via TP4056 Li-ion charger with BAT rail distribution; SPI for TFT, I2C for BMP581, USB D+/D- ESD-protected only (no data interface), PWM-controlled backlight NMOS referenced to BAT, SWD and power brought out to test pads.

    3.3

    V

    Bare metal

    USB

    30

    mm

    Pricing & Availability

    Distributor

    Qty 1

    Controls