ESP32-C3 Pinout Comparison

5:52

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.

Revisar ligações de power

Verificar filtro LC

Selecionar indutor

Renomear nets

Conferir desacoplamento

163 days

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

URX0

XTALN

LNA_IN

XTALN

+5V

IO10

3V3

ESP_EN

IO8

BOOT

3V3

UTX0

USB_D-

IO2

USB_D+

Inductance

2.2uH

Inductance

2nH

Capacitance

100nF

Capacitance

100nF

Capacitance

100nF

Resistance

5.1KΩ

Resistance

10KΩ

Capacitance

100nF

Capacitance

1uF

Capacitance

10nF

Capacitance

100nF

IC1

C13

Capacitance

22uF

Reviews

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
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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
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11.4M
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
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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, 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
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15.8k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
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47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
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875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
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1.2M
CTL1206FYW1T
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1.1M

Project Name

ESP32-C3 Reference Design

Description

This is an ESP32-C3 reference design based on the manufacturer's recommendations with a uFL SMD antenna and USB C on board #WiFi #ESP32-C3 #IoT #referenceDesign #simple-embedded #espressif #template #reference-design

Properties

License

creativecommons.org/licenses/by/4.0/

Pricing & Availability

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

Controls

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