Schematic for RP2040 - Only AI: RP2040 Dual TLC5940 High-Current...

Controlling LEDs with TLC5940 and RP2040

Worked

0:19

Autopilot

Started: Connect each TLC5940 VCC pin to the 5 V net and each GND pin to the GND net

104 days

Updated 2 nets

0:04

Connected U_TLC1:VCC to U_TLC2:VCC

Connected U_TLC1:GND to U_TLC2:GND

104 days

Worked

0:13

Autopilot (simple)

Started: Add project property “ERC Status” = “Pending"

104 days

Updated 1 document property

0:06

Updated 1 document property

104 days

flux

0:00

Autopilot

Session ended. I’ve completed all implementation steps:

Updated project description and system architecture diagram
Placed 2× TLC5940, IREF resistors, decoupling capacitors, and external 5 V connector
Rewired AMS1117-3.3 to the external 5 V input and isolated USB VBUS
Connected RP2040 GPIO19→SIN, GPIO18→SCLK, GPIO16→GSCLK, GPIO20→BLANK, GPIO17→XLAT
Chained TLC5940-1 SOUT→TLC5940-2 SIN, tied both VCC to 5 V and GND to ground
Set ERC status to “Pending”

What I cannot do:

Run ERC checks (you’ll need to trigger and review them)

Success Criteria:

IREF resistors & decoupling on both TLC5940s: met
External 5 V rail & AMS1117-3.3 input rewired: met
RP2040 GPIO mapping & daisy-chain wiring: met
ERC checks passing: pending

104 days

Plan completed.

Show Plan

recommend a replacement for C2.

https://youtu.be/FL7e0OXTLic?si=FojCAhJR3KoX\_sd3

how do I connect this to the regulator and the rp2040?

where do I connect the DVDD pins to?

explain this project.

how do I connect the run pin on U1?

does this work to convert the 5V from USB to the 3.3V for the RP2040?

does this memory work for the rp2040?

list all U1 pins in a table format. For each pin provide its pin number, pin nam...

Capacitance

100n F

U1 GPIO19 - U_TLC1 SIN

SPI_CS

3V3

Capacitance

10u F

U1 GPIO17 - U_TLC1 XLAT

Manufacturer Part Number

AMS1117-3.3

XOUT

3V3

U1 RUN - SW1 P2

Manufacturer Part Number

RP2040

XOUT

Capacitance

100n F

C15

Capacitance

0.1u F

3V3

U1 GPIO18 - U_TLC1 SCLK

C11

Capacitance

10u F

Capacitance

100n F

SPI_D3

SPI_D0

C17 P1 - U_TLC2 VCC

Capacitance

10u F

U1 RUN - SW1 P2

3V3

Capacitance

10u F

J2 2 - GND GND

U1 GPIO18 - U_TLC1 SCLK

SPI_CS

XIN

C13

Capacitance

22p F

C19 P2 - GND_PORTAL GND

GND_PORTAL

U1 GPIO20 - U_TLC1 BLANK

SPI_SCLK

U_TLC1 GND - U_TLC2 GND

C14

Capacitance

22p F

GND

C10

Capacitance

100n F

Capacitance

100n F

U1 GPIO20 - U_TLC1 BLANK

U1 GPIO17 - U_TLC1 XLAT

3V3

Capacitance

10u F

U1 GPIO16 - U_TLC1 GSCLK

XIN

U_TLC1

3V3

Capacitance

10u F

SPI_SCLK

SPI_D2

C12

Capacitance

10u F

3V3

U1 GPIO16 - U_TLC1 GSCLK

SPI_D1

Resistance

500 Ω

SW1

SWCLK

Resistance

27.4 Ω

Resistance

500 Ω

Frequency

12M Hz

SWD

Resistance

500 Ω

Resistance

27.4 Ω

Reviews

Electrical Rule Checks

Missing Footprints

Reports components that need a footprint but don't have one.

Design Rule Checks

Overlapping Copper • 5

Des	Net	Des	Net
Trace 3f95	5V	SW1:2	None
Trace df17	GND	Trace e564	5V
Trace 0706	Net (SWD)	R7:P2	None
R7:P2	None	Trace bf82	Net (SWD)
SW1:2	None	SW1:P1	5V

Invalid Layer

Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.

Component Overrides • 40

	Designator	Ruleset
	＊｀REF｀＊	C7
	＊｀REF｀＊	C5
	＊｀REF｀＊	C2
	＊｀REF｀＊	C3
	＊｀REF｀＊	C1
	＊｀REF｀＊	R3
	＊｀REF｀＊	U1
	＊｀REF｀＊	C4
	＊｀REF｀＊	C12
	＊｀REF｀＊	C9
	＊｀REF｀＊	C14
	＊｀REF｀＊	U4
	＊｀REF｀＊	C8
	＊｀REF｀＊	C6
	＊｀REF｀＊	R2
	＊｀REF｀＊	C13
	＊｀REF｀＊	C10
	＊｀REF｀＊	J1
	＊｀VALUE｀＊	C5 value
	＊｀VALUE｀＊	C14 value
	＊｀VALUE｀＊	C13 value
	＊｀VALUE｀＊	C6 value
	＊｀VALUE｀＊	C1 value
	＊｀VALUE｀＊	R3 value
	＊｀VALUE｀＊	R1 value
	＊｀VALUE｀＊	C10 value
	＊｀VALUE｀＊	C8 value
	＊｀VALUE｀＊	R2 value
	＊｀VALUE｀＊	R5 value
	＊｀VALUE｀＊	C7 value
	＊｀VALUE｀＊	C12 value
	＊｀VALUE｀＊	C2 value
	＊｀VALUE｀＊	C15 value
	＊｀VALUE｀＊	C3 value
	＊｀VALUE｀＊	C4 value
	＊｀VALUE｀＊	C11 value
	＊｀VALUE｀＊	C9 value
	＊｀VALUE｀＊	R4 value
	Text Shape	Y1 value
	Text Shape	Y1

Airwires • 21

	Designators	Net
	C16:P1, C17:P1	5V
	C16:P1, C19:P1	5V
	C18:P1, C16:P1	5V
	U_TLC2:VCC, C18:P1	5V
	U_TLC2:VCC, U_TLC1:VCC	5V
	U1:GPIO20, U_TLC1:BLANK	BLANK
	C16:P2, C17:P2	GND
	C16:P2, C19:P2	GND
	C18:P2, C16:P2	GND
	U_TLC2:GND, U_TLC1:GND	GND
	Via-12-17:Via-12-17, J2:2	GND
	Via-34-17:Via-34-17, C18:P2	GND
	Via-Island-0:Via-Island-0, Trace 6377:Trace 6377	GND
	U1:GPIO16, U_TLC1:GSCLK	GSCLK
	Trace 41c4:Trace 41c4, J2:1	Net (5V_USB - P1)
	Trace 99b2:Trace 99b2, U1:GPIO8	Net (U2 - TAB)
	U1:GPIO8, U1:GPIO9	Net (U2 - TAB)
	U1:GPIO18, U_TLC1:SCLK	SCLK
	U1:GPIO19, U_TLC1:SIN	SIN
	U_TLC2:SIN, U_TLC1:SOUT	SOUT
	U1:GPIO17, U_TLC1:XLAT	XLAT

Layers with Multiple Fills • 1

	Layer	Net
	All	GND, GND

Floating Copper • 1

	Name
	Trace 4e23, Trace f58f

Protected Intrusions

Reports intrusions from objects of other nets into polygons or fills that have the Protected layout rule applied.

Manufacturing

Manufacturer Part Number • 27

	Designator	MPN
	C1	None
	C2	None
	C3	None
	C4	None
	C5	None
	C6	None
	C7	None
	C8	None
	C9	None
	C10	None
	C11	None
	C12	None
	C13	None
	C14	None
	C15	None
	C16	None
	C17	None
	C18	None
	C19	None
	R1	None
	R2	None
	R3	None
	R4	None
	R5	None
	R6	None
	R7	None
	SW1	None

Parts Available

Beta

Checks that all components are available from distributors.

System Checks

Auto-Layout

Beta

Reports issues with Auto-Layout if Flux cannot route something or must ignore a configuration.

Passive Components

Resistor Power Rating

Beta

Checks that the power traveling across a given resistor is under its rating with 50% headroom.

Learn more

Pull Up/Pull Down Presence

Beta

Checks that IC pins that require pull up or pull down resistors have them.

Learn more

Capacitor Voltage Rating

Beta

Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.

Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
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
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
jharwinbarrozo
11.4M
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
jharwinbarrozo
1.5M
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
jharwinbarrozo
1.5M
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
jharwinbarrozo
15.1k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
jharwinbarrozo
1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M

Inspect

RP2040 - Only AI

Controls

Properties

System Architecture

graph LR Ext5V[External 5V] --> RP2040[RP2040] Ext5V --> AMS1117_3V3[AMS1117-3.3] Ext5V --> TLC1[TLC5940 #1] Ext5V --> TLC2[TLC5940 #2] RP2040 --> TLC1 TLC1 --> TLC2 USB_VBUS -.->|isolated| Ext5V

ERC Status

Pending

Availability & Pricing

Distributor		Qty 1
	Arrow	$7.42–$7.80
	Digi-Key	$7.64–$11.40
	LCSC	$7.62–$7.97
	Mouser	$10.01
	TME	$1.21
	Verical	$1.47–$3.20

Assets

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