PCB Design for Adafruit RP2040

flux

0:00

Work done
  • Project description updated to include Feather RP2040, MCP25625 CAN, ILI9341 TFT, 12 V→5 V buck, CAN H/G/L terminal block (#FeatherRP2040 #CAN #TFT #BuckConverter)
  • System architecture diagram added to project property
  • Major ICs placed:
    • U1 MCP25625-E/SS
    • U2 ILI9341
    • U3 TPS63070 Buck Converter
  • Power connector: J3 TB003-500-P02BE (12 V in)
  • Buck support:
    • L4 4.7 µH inductor
    • C9, C10 22 µF, 25 V capacitors
  • CAN termination:
    • R7, R8 60 Ω resistors
    • J7 termination jumper
  • Decoupling: C11–C16 0.1 µF, 10 V each
  • Pull-ups: R11, R12
  • Connectors:
    • J4 TFT header
    • J6 TB003-500-P03BE CAN H/G/L
  • Nets wired: SPI (SCK/MOSI/MISO), CS_CAN, CS_TFT, DC, RST, IRQ, 12 V→buck VIN, buck VOUT→VBUS/VIN1/LITE1, GND, CANH/CANL
Cannot do (to be completed by you)
  • Ensure all components have footprints by setting each part’s Package property
  • Add four Ø3.2 mm mounting holes (H1–H4) and connect each pad to GND
  • Configure a ground plane fill on inner and bottom copper layers
  • Select and set a standard 4-layer stackup and save in project properties
Success criteria review
  • ✅ All modules (Feather RP2040, MCP25625, ILI9341, buck converter) placed and net-connected
  • ✅ SPI and IRQ lines mapped with separate CS pins
  • ✅ CAN H/G/L terminal block and 120 Ω termination present
  • ✅ Power distribution from 12 V to 5 V and to all devices configured
Next step
Proceed with assigning footprints, defining the board outline and mounting hole placement, configuring the ground plane and layer stackup. Let me know when you’re ready to continue.
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Feather RP2040

Feather RP2040 thumbnail
Feather RP2040 Automotive CAN + TFT FeatherWing

Properties

J1 Pin_11 (labeled D6 on Feather RP2040) → Net INT → U1:~INT

Not used / not populated in this revision

PWM dimming on Feather D10 (J2 Pin_5) preferred; simple on/off also acceptable if PWM unavailable

H–G–L (J6: P1=CANH, P2=GND, P3=CANL)

adafruit.com/feather2040?nylayout=mobil&gclid=CjwKCAjw44mlBhAQEiwAqP3eVobi8jBpDXttFYAVoRqpbXVjJXYmGLxm5lL3fPkXPAcbufNEeckaixoCi5cQAvD_BwE

Not used / not populated in this revision

J1 Pin_3 (labeled D10 on Feather RP2040) → Net CS_CAN → U1:~CS

5 V from buck output (VBUS)

1

J1 Pin_4 (labeled D9 on Feather RP2040) → Net CS_TFT → U2:CS2

How many CAN H/G/L connectors do you want on the board, and what pin order should each use on the terminal block(s): H–G–L or L–G–H?

Diagram



  
    
  
  
    
  










CS_CAN

RST

INT

TOUCH_IRQ

5V_VBUS

5V_LED

CANL

GND






"Feather RP2040"
"MCP25625 CAN"
"ILI9341 TFT"
"12V_to_5V_Buck"
"CAN_H/G/L_Terminal"
GND

J2 Pin_3 (labeled A1 / D15 on Feather RP2040) → Net DC → U2:D/C

Use Feather RESET line (RST) tied directly to U2:RESET (no dedicated GPIO)

60

mA

U

Pricing & Availability

Distributor

Qty 1

Arrow

$7.55–$11.95

Digi-Key

$20.00–$103.79

LCSC

$20.38

Mouser

$18.51–$102.42

TME

$10.59

Verical

$12.15–$22.96

Controls