Retro LCD Dashboard Design

Worked

0:11

flux

Work completed:
  • Project description updated to "USB-C Powered 3-Axis Digital Compass Module with MAX7219 7-Segment Display (Compass-Only, Automotive Use)"
  • System architecture property revised to show only STM32 (U2), BMM150 (U5), MAX7219 (U3) driving displays U6–U8, power chain (U1, D3, D4, F1, U15), and brightness pot (SW1)
  • Removed U9–U14, U16/U17 and their passives, U4 (BMA280), and J1
  • Severed ONE_WIRE net and all orphaned SPI-CS and segment nets
  • Verified I2C pull-ups remain for U5
  • Restored connections: U3→U6–U8 segments, USB-C power chain (VBUS→3V3), SW1→PA6 & GND, and mounting holes cleared of nets
Success criteria met:
  • Only compass-relevant parts remain
  • All extraneous components and nets removed
  • Single SPI CS on U3 and valid I2C pull-ups present
  • Metadata reflects compass-only design
Next step: Prepare the design for PCB layout, starting with footprint review and stackup configuration.
U9
U10
U11
SW1
U14
U6
U12
U13
U8
U7
U4 GNDIO - U5 GND
U6 ANODE_DP - U7 ANODE_DP
U6 ANODE_DP - U7 ANODE_DP
U12 ANODE_A - U13 ANODE_A
U6 ANODE_E - U7 ANODE_E
SW1 SW_2 - U2 PB4
U9 ANODE_D - U10 ANODE_D
U9 ANODE_C - U10 ANODE_C
U12 ANODE_C - U13 ANODE_C
U12 ANODE_DP - U13 ANODE_DP
U12 ANODE_F - U13 ANODE_F
U12 ANODE_A - U13 ANODE_A
SW1 SW_2 - U2 PB4
U2 PB6 - U4 SCX
U6 ANODE_F - U7 ANODE_F
U2 PB6 - U4 SCX
U9 ANODE_C - U10 ANODE_C
U6 ANODE_C - U7 ANODE_C
U6 ANODE_B - U7 ANODE_B
D3 VBUS - D4 Cathode
U12 ANODE_B - U13 ANODE_B
U9 ANODE_G - U10 ANODE_G
U9 ANODE_B - U10 ANODE_B
U2 PB6 - U4 SCX
U4 GNDIO - U5 GND
SW1 R1_2 - U2 PA6
U12 ANODE_A - U13 ANODE_A
U6 ANODE_E - U7 ANODE_E
U6 ANODE_G - U7 ANODE_G
U12 ANODE_D - U13 ANODE_D
U12 ANODE_E - U13 ANODE_E
D3 VBUS - D4 Cathode
C5 P2 - U15 GND
D3 VBUS - D4 Cathode
U9 ANODE_B - U10 ANODE_B
U9 ANODE_C - U10 ANODE_C
U12 ANODE_E - U13 ANODE_E
U15 VOUT - U2 VDD
U2 PB7 - U4 SDX
U6 ANODE_B - U7 ANODE_B
D3 VBUS - D4 Cathode
U6 ANODE_A - U7 ANODE_A
SW1 SW_2 - U2 PB4
U6 ANODE_G - U7 ANODE_G
U12 ANODE_DP - U13 ANODE_DP
U9 ANODE_A - U10 ANODE_A
U9 ANODE_E - U10 ANODE_E
SW1 SW_2 - U2 PB4
U4 GNDIO - U5 GND
C5 P1 - U4 VDD
C5 P2 - U15 GND
U9 ANODE_A - U10 ANODE_A
U9 ANODE_G - U10 ANODE_G
U12 ANODE_D - U13 ANODE_D
U6 ANODE_C - U7 ANODE_C
U9 ANODE_E - U10 ANODE_E
U2 VSS - U4 GND
U2 VDDA - C2 P1
U12 ANODE_G - U13 ANODE_G
C5 P1 - U4 VDD
SW1 SW_2 - U2 PB4
U4 GNDIO - U5 GND
D2 A2 - D5 A2
SW1 SW_2 - U2 PB4
U6 ANODE_G - U7 ANODE_G
D3 VBUS - D4 Cathode
U12 ANODE_G - U13 ANODE_G
U12 ANODE_E - U13 ANODE_E
C5 P1 - U4 VDD
U12 ANODE_G - U13 ANODE_G
U12 ANODE_F - U13 ANODE_F
U6 ANODE_D - U7 ANODE_D
U9 ANODE_DP - U10 ANODE_DP
C5 P1 - U4 VDD
U12 ANODE_B - U13 ANODE_B
U6 ANODE_A - U7 ANODE_A
SW1 R1_2 - U2 PA6
U6 ANODE_F - U7 ANODE_F
U12 ANODE_C - U13 ANODE_C
U9 ANODE_D - U10 ANODE_D
U12 ANODE_DP - U13 ANODE_DP
U12 ANODE_F - U13 ANODE_F
SW1 R1_2 - U2 PA6
U9 ANODE_DP - U10 ANODE_DP
U2 PB7 - U4 SDX
U6 ANODE_A - U7 ANODE_A
U6 ANODE_E - U7 ANODE_E
U9 ANODE_F - U10 ANODE_F
U6 ANODE_C - U7 ANODE_C
D3 VBUS - D4 Cathode
U9 ANODE_G - U10 ANODE_G
U6 ANODE_D - U7 ANODE_D
U6 ANODE_DP - U7 ANODE_DP
U9 ANODE_B - U10 ANODE_B
U6 ANODE_D - U7 ANODE_D
U9 ANODE_F - U10 ANODE_F
D3 VBUS - D4 Cathode
SW1 SW_2 - U2 PB4
U6 ANODE_B - U7 ANODE_B
U12 ANODE_C - U13 ANODE_C
U15 VOUT - U2 VDD
U9 ANODE_F - U10 ANODE_F
U2 VSS - U4 GND
U9 ANODE_E - U10 ANODE_E
U9 ANODE_D - U10 ANODE_D
U9 ANODE_DP - U10 ANODE_DP
J1 ~ - U2 PB3
U9 ANODE_A - U10 ANODE_A
U12 ANODE_D - U13 ANODE_D
C5 P1 - U4 VDD
C5 P2 - U15 GND
U12 ANODE_B - U13 ANODE_B
D2 A2 - D5 A2
U2 PB7 - U4 SDX
U6 ANODE_F - U7 ANODE_F
U2 VDDA - C2 P1
J1 ~ - U2 PB3
SW1 SW_2 - U2 PB4
U5
J1
C2
Capacitance
10 µF
GND
C12
Capacitance
0.1µF
Hole1
C8
Capacitance
0.1µF
Hole7
U15
Hole8
C7
Capacitance
10µF
U1
Hole5
C4
Capacitance
0.1 µF
D3
C3
Capacitance
0.1 µF
Hole4
C11
Capacitance
10 µF
Hole6
C1
Capacitance
1 µF
Hole2
C13
Capacitance
10µF
C6
Capacitance
0.1µF
C5
Capacitance
0.1 µF
C9
Capacitance
10µF
C10
Capacitance
0.1 µF
Hole3
U17
U3
D6
U16
D2
D1
D5
R3
Resistance
10kΩ
U4
R2
Resistance
36kΩ
F1
R1
Resistance
36kΩ
U2
D4
  • Generic Inductor
    Generic Inductor
    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 #CommonPartsLibrary
    jharwinbarrozo
    16.6k
  • Generic Capacitor
    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, 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 #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Resistor
    Generic Resistor
    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 #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • 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
    jharwinbarrozo
    43.0M
  • RMCF0805JT47K0
    RMCF0805JT47K0
    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 compliant
    jharwinbarrozo
    1.2M
  • 875105359001
    875105359001
    10 µF 16 V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 2000 Hrs @ 105°C #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric)
    jharwinbarrozo
    1.1M
  • 1070TR
    1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
    jharwinbarrozo
    700.5k
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
FJ Cruiser Dashboard Module thumbnail
USB-C Powered 3-Axis Digital Compass Module with MAX7219 7-Segment Display (Compass-Only, Automotive Use)

Layout Rules

mm

Yes

10mm

Top

deg

Properties

V

Pricing & Availability

Distributor

Qty 1

Arrow

$38.29–$43.84

Digi-Key

$107.19–$111.00

LCSC

$58.85–$87.11

Mouser

$99.26–$99.32

TME

$35.81

Verical

$5.32–$10.31

Controls