Schematic for ESP32-C3 Reference Design: This is an ESP32-C3...

ESP32-C3 Pinout Comparison

5:52

General

Chat History

Project

Net 3

Entendi: você quer a lista completa dos pinos do ESP32‑C3FH4 com os nomes “funcionais” e também como eles aparecem no seu projeto, incluindo sufixos como “__1”. No Flux, quando um mesmo pino lógico tem mais de um “ponto” no símbolo, o editor pode criar “aliases” do mesmo nó elétrico com sufixos como “__1”, “__2” para distinguir gráficos separados, mas todos pertencem ao mesmo pino físico e à mesma rede.

Abaixo segue o mapeamento pino a pino do pacote VFQFN‑32, cruzando:

Número físico do pino
Nome funcional comum (datasheet/KiCad-style)
Nome/uso esperado no projeto atual do Flux (com exemplos de sufixos vistos no seu projeto)

Observações importantes sobre sufixos

VDD3P3, VDD3P3__1, VDD3P3_CPU, VDD3P3_RTC, VDD_SPI são domínios diferentes ou instâncias repetidas no símbolo. “__1” não muda a função; é o mesmo net/mesmo pino lógico, só uma segunda instância gráfica.
Para sinais seriais/USB/UART, alguns nós podem aparecer como GPIOxx e/ou nomes alternativos (DN/DP, U0RXD/U0TXD). Conectam ao mesmo pino físico.

Mapa pino a pino (VFQFN‑32)

Pino 1

Função: LNA_IN
No projeto: IC1 LNA_IN

Pino 2

Função: VDD3P3 (domínio 3V3 periférico)
No projeto: VDD3P3 ou VDD3P3__1 sob o net de 3V3

Pino 3

Função: VDD3P3 (mesmo domínio 3V3 periférico)
No projeto: VDD3P3 (pode aparecer com “__1” em outra instância)

Pino 4

Função: GPIO0 / XTAL_32K_P
No projeto: GPIO0/XTAL_32K_P

Pino 5

Função: GPIO1 / XTAL_32K_N
No projeto: GPIO1/XTAL_32K_N

Pino 6

Função: GPIO2
No projeto: GPIO2

Pino 7

Função: CHIP_EN
No projeto: CHIP_EN ligado a R1 via Net 1

Pino 8

Função: GPIO3
No projeto: GPIO3

Pino 9

Função: GPIO4 / MTMS
No projeto: GPIO4/MTMS

Pino 10

Função: GPIO5 / MTDI
No projeto: GPIO5/MTDI

Pino 11

Função: VDD3P3_RTC
No projeto: VDD3P3_RTC

Pino 12

Função: GPIO6 / MTCK
No projeto: GPIO6/MTCK

Pino 13

Função: GPIO7 / MTDO
No projeto: GPIO7/MTDO

Pino 14

Função: GPIO8
No projeto: GPIO8

Pino 15

Função: GPIO9
No projeto: GPIO9

Pino 16

Função: GPIO10
No projeto: GPIO10

Pino 17

Função: VDD3P3_CPU
No projeto: VDD3P3_CPU

Pino 18

Função: VDD_SPI
No projeto: VDD_SPI

Pino 19

Função: GPIO12 / SPIHD
No projeto: GPIO12/SPIHD

Pino 20

Função: GPIO13 / SPIWP
No projeto: GPIO13/SPIWP

Pino 21

Função: GPIO14 / SPICS0
No projeto: GPIO14/SPICS0

Pino 22

Função: GPIO15 / SPICLK
No projeto: GPIO15/SPICLK

Pino 23

Função: GPIO16 / SPID
No projeto: GPIO16/SPID

Pino 24

Função: GPIO17 / SPIQ
No projeto: GPIO17/SPIQ

Pino 25

Função: GPIO18 / USB_D−
No projeto: GPIO18/USB_D−, também pode aparecer como DN; conectado ao USB DN do J2 via Net 17

Pino 26

Função: GPIO19 / USB_D+
No projeto: GPIO19/USB_D+, também pode aparecer como DP; conectado ao USB DP do J2 via Net 16

Pino 27

Função: GPIO20 / U0RXD
No projeto: U0RXD ou GPIO20/U0RXD (Net 9 no seu esquemático mostra U0RXD)

Pino 28

Função: GPIO21 / U0TXD
No projeto: U0TXD ou GPIO21/U0TXD (Net 8 no seu esquemático mostra U0TXD)

Pino 29

Função: XTAL_N
No projeto: XTAL_N (ligado a Y1 e C8 via Net 4)

Pino 30

Função: XTAL_P
No projeto: XTAL_P (ligado a Y1 e C9 via Net 5)

Pino 31

Função: VDDA (analógico)
No projeto: VDDA (ver com C7)

Pino 32

Função: VDD3P3 (periférico)
No projeto: VDD3P3 (ou VDD3P3__1 dependendo da instância no símbolo)

Pad exposto (centro)

Função: GND (PAD térmico)
No projeto: GND/PAD do IC1, aterrado junto a AGND/PGND no plano

Por que aparecem “VDD3P3__1”, “VDD3P3__2”, etc.?

São múltiplas instâncias gráficas do mesmo pino/mesmo net no símbolo para facilitar o desenho. Eletricamente é o mesmo nó. O roteamento/PCB considerarão um único pino físico correspondente no encapsulamento.

Quer que eu verifique dentro do seu projeto se todas as redes de alimentação do IC1 (VDD3P3, VDD3P3_RTC, VDD3P3_CPU, VDD_SPI, VDDA) estão realmente ligadas ao mesmo trilho de 3V3 via os indutores/LC previstos e com os capacitores de desacoplamento corretos? Posso revisar e apontar qualquer divergência.

75 days

Ready.

add rgb led

tsanders

@copilot add rgb led

copilot

To add an RGB LED to your ESP32-C3 reference design, you'll need to follow these steps:

Choose the RGB LED: Let's assume you're using a common cathode RGB LED with designator LED1.
Connect the LED pins:
- Resistor Selection: Use current-limiting resistors for each color channel. Let's choose 330Ω resistors for this example.
Connections to the ESP32-C3:
- Typically, you would connect the anodes (positive terminals) of the RGB LED to GPIO pins of the microcontroller.
- The cathode (negative terminal) is usually connected to GND.

Based on the ESP32-C3 datasheet, the GPIO pins can be used for control. Here are the detailed steps:

Step-by-Step Wiring:

LED Connections:
- Red LED: Connect anode through a 330Ω resistor (R5) to GPIO10.
- Green LED: Connect anode through a 330Ω resistor (R6) to GPIO9.
- Blue LED: Connect anode through a 330Ω resistor (R7) to GPIO8.
- Cathode to GND.

Add Components to your Project: RGB LED

Designator: LED1
Pins: 4
- Pin 1: R (connect to GPIO10 through resistor)
- Pin 2: G (connect to GPIO9 through resistor)
- Pin 3: B (connect to GPIO8 through resistor)
- Pin 4: Cathode (connect to GND)

Resistors

Designator: R5, R6, R7
- Resistance: 330Ω

Connections:

Connect $R5:2$ to $LED1:1$ and $R5:1$ to $IC1:GPIO10$ .
Connect $R6:2$ to $LED1:2$ and $R6:1$ to $IC1:GPIO9$ .
Connect $R7:2$ to $LED1:3$ and $R7:1$ to $IC1:GPIO8$ .
Connect $LED1:4$ to GND.

Example Net Assignment:

Net: GND (Already existing net)
- Connect $LED1:4$ to GND

Integration into your Design:

Adjust your schematic to include these components and connections. Here's a summarized version:

Add RGB LED:
- Connect $R5:2$ to $LED1:1$ , $R6:2$ to $LED1:2$ , $R7:2$ to $LED1:3$ , and $LED1:4$ to GND.
- Connect $R5:1$ to $IC1:GPIO10$ .
- Connect $R6:1$ to $IC1:GPIO9$ .
- Connect $R7:1$ to $IC1:GPIO8$ .

Would you like further assistance with the component values or the layout?

tsanders

can you add it into the schematic?

copilot

Sure, here's how you can add the RGB LED and associated components to your schematic on Flux:

Step 1: Add Components to Schematic

RGB LED (LED1):

Go to the "Add Component" section in Flux.
Search for an RGB LED component and place it onto your schematic.
Label the RGB LED as LED1.

Resistors (R5, R6, R7):

Search for 330Ω resistors and place three of them onto your schematic.
Label these resistors as R5, R6, and R7.

Step 2: Connect Components

Connections:

Red Channel:
- Connect $R5:2$ to $LED1:1$ (Red anode).
- Connect $R5:1$ to $IC1:GPIO10$ .
Green Channel:
- Connect $R6:2$ to $LED1:2$ (Green anode).
- Connect $R6:1$ to $IC1:GPIO9$ .
Blue Channel:
- Connect $R7:2$ to $LED1:3$ (Blue anode).
- Connect $R7:1$ to $IC1:GPIO8$ .
Cathode:
- Connect $LED1:4$ (cathode) to the GND net.

Adding Connections in Netlist Form:

Here is a concise list of connections you need to make:

Connect $R5:2$ to $LED1:1$ , $R5:1$ to $IC1:GPIO10$ .
Connect $R6:2$ to $LED1:2$ , $R6:1$ to $IC1:GPIO9$ .
Connect $R7:2$ to $LED1:3$ , $R7:1$ to $IC1:GPIO8$ .
Connect $LED1:4$ to GND.

Updated Schematic

Append the following components to your project list:

Plaintext
## Designator: LED1
Pins: 1 (name: R), 2 (name: G), 3 (name: B), 4 (name: Cathode)
Element Properties:
Designator Prefix: LED

## Designator: R5
Pins: 1 (name: P1), 2 (name: P2)
Element Properties:
Resistance: 330
Designator Prefix: R

## Designator: R6
Pins: 1 (name: P1), 2 (name: P2)
Element Properties:
Resistance: 330
Designator Prefix: R

## Designator: R7
Pins: 1 (name: P1), 2 (name: P2)
Element Properties:
Resistance: 330
Designator Prefix: R

And append the following to your connections:

Plaintext
## Net: Net 15 (Red Channel)
Members: R5:$$(P1)$$, LED1:$$(R)$$, IC1:$$(GPIO10)$$

## Net: Net 16 (Green Channel)
Members: R6:$$(P1)$$, LED1:$$(G)$$, IC1:$$(GPIO9)$$

## Net: Net 17 (Blue Channel)
Members: R7:$$(P1)$$, LED1:$$(B)$$, IC1:$$(GPIO8)$$

## Net: GND
Members: LED1:$$(Cathode)$$

Implementation on Flux:

Place Components:
- Add LED1, R5, R6, and R7 to the schematic.
Create Nets:
- Add connections as specified to create the nets for each channel and GND connection.

Would you like me to generate a netlist file for you to upload to Flux directly?

tsanders

directly

copilot

Great! Below is the updated schematic information with the RGB LED and the associated components.

Updated Components

Please add these components to your project in Flux:

RGB LED (LED1):

Plaintext
## Designator: LED1
Pins: 1 (name: R), 2 (name: G), 3 (name: B), 4 (name: Cathode)
Element Properties:
Designator Prefix: LED

Resistors (R5, R6, R7):

Plaintext
## Designator: R5
Pins: 1 (name: P1), 2 (name: P2)
Element Properties:
Resistance: 330
Designator Prefix: R

## Designator: R6
Pins: 1 (name: P1), 2 (name: P2)
Element Properties:
Resistance: 330
Designator Prefix: R

## Designator: R7
Pins: 1 (name: P1), 2 (name: P2)
Element Properties:
Resistance: 330
Designator Prefix: R

Updated Nets

Add the following net connections to your project:

Plaintext
## Net: Red_Channel
Members: R5:$P1$, R5:$P2$, LED1:$R$, IC1:$GPIO10$

## Net: Green_Channel
Members: R6:$P1$, R6:$P2$, LED1:$G$, IC1:$GPIO9$

## Net: Blue_Channel
Members: R7:$P1$, R7:$P2$, LED1:$B$, IC1:$GPIO8$

## Net: GND
Members: LED1:$Cathode$

Integrate it into your Flux Project

In Flux:
- Add the new components LED1, R5, R6, and R7.
- Use the provided net names (Red_Channel, Green_Channel, Blue_Channel, GND) to make the connections between these components and the IC1 (ESP32-C3) accordingly.

By following these steps and additions, you'll integrate the RGB LED with your ESP32-C3 reference design. If you need any additional adjustments or verification, let me know!

Someone is typing...

3V3

USB_D+

USB_D-

XTALP

IO3

LNA_IN

3V3

Inductance

2.2u H

URX0

Inductance

2n H

XTALN

LNA_IN

Capacitance

100n F

XTALN

Capacitance

100n F

+5V

IO10

3V3

ESP_EN

IO8

IC1

BOOT

Capacitance

100n F

Resistance

5.1K Ω

Resistance

10K Ω

3V3

UTX0

Capacitance

100n F

Capacitance

1u F

USB_D-

Capacitance

10n F

C13

Capacitance

22u F

Capacitance

100n F

IO2

USB_D+

Reviews

Electrical Rule Checks

Missing Footprints

Reports parts that have no footprint.

Design Rule Checks

Overlapping Copper • 33

Des	Net	Des	Net
IC1:GND	GND	IC1:34	None
IC1:GND	GND	IC1:35	None
IC1:GND	GND	IC1:36	None
IC1:GND	GND	IC1:37	None
IC1:GND	GND	IC1:38	None
IC1:GND	GND	IC1:39	None
IC1:GND	GND	IC1:40	None
IC1:GND	GND	IC1:41	None
IC1:GND	GND	IC1:42	None
IC1:GND	GND	IC1:43	None
IC1:GND	GND	IC1:44	None
IC1:GND	GND	IC1:45	None
IC1:GND	GND	IC1:46	None
IC1:GND	GND	IC1:47	None
IC1:GND	GND	IC1:48	None
IC1:GND	GND	IC1:49	None
IC2:PAD	GND	IC2:325bd000	None
IC2:PAD	GND	IC2:325bd000	None
Trace 00fc	GND	IC1:38	None
Trace 6e7e	GND	IC1:38	None
Trace 24d9	GND	IC2:325bd000	None
Via	GND	IC1:38	None
IC1:38	None	Trace ac4f	GND
IC1:38	None	Trace b93a	GND
IC1:38	None	Trace d4d7	GND
IC1:38	None	Via	GND
IC2:325bd000	None	Trace 6da6	GND
IC2:325bd000	None	Trace 6da6	GND
IC2:325bd000	None	Trace 7c55	GND
IC2:325bd000	None	Trace 5414	GND
IC2:325bd000	None	Trace c9a8	GND
IC2:325bd000	None	Trace d5e3	GND
IC2:325bd000	None	Trace d5e3	GND

Invalid Layer

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

Component Overrides • 28

	Designator	Ruleset
	＊｀REF｀＊	IC2
	＊｀REF｀＊	C9
	＊｀REF｀＊	J2
	＊｀REF｀＊	L2
	＊｀REF｀＊	C11
	＊｀REF｀＊	C12
	＊｀REF｀＊	J1
	＊｀REF｀＊	L3
	＊｀REF｀＊	L1
	＊｀REF｀＊	IC1
	＊｀REF｀＊	C3
	＊｀REF｀＊	R2
	＊｀REF｀＊	C6
	＊｀REF｀＊	C8
	＊｀REF｀＊	C5
	＊｀REF｀＊	C1
	＊｀REF｀＊	R4
	＊｀REF｀＊	C13
	＊｀REF｀＊	R1
	＊｀REF｀＊	R3
	＊｀REF｀＊	C2
	＊｀REF｀＊	Y1
	＊｀REF｀＊	C4
	＊｀REF｀＊	C7
	＊｀REF｀＊	C10
	＊｀VALUE｀＊	L2 value
	＊｀VALUE｀＊	L1 value
	＊｀VALUE｀＊	L3

Airwires

Reports missing routed traces between pads in a net.

Deprecated Rules

Reports nodes that are using rules that are not supported anymore.

Layers with Multiple Fills

Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.

Floating Copper

Detect any via, trace or copper fill island that is not connected to any net.

Protected Intrusions

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

Manufacturing

Manufacturer Part Number • 20

	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
	L1	None
	L2	None
	L3	None
	R1	None
	R2	None
	R3	None
	R4	None

Parts Available

Beta

Checks that all parts have a part number and 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

ESP32-C3 Reference Design

Controls

Properties

License

https://creativecommons.org/licenses/by/4.0/

Availability & Pricing

Distributor		Qty 1
	Digi-Key	$3.00–$4.10
	LCSC	$4.23
	Mouser	$4.85

Assets

Thumbnail

ESP32-C3 Reference Design.png

id=ESP32-C3 Reference Design

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