Schematic Symbol for ESP32-C3-MINI-1 Module: ESP32-C3 SuperMini...

ESP32-C3 Board Design

flux

0:00

Autopilot

Work done

Project description updated with #ESP32C3 #SuperMini #LowProfile #CompactDesign
System Architecture property updated to SuperMini mermaid diagram
Removed ESP32-C3-MINI-1 (U1) and placed ESP32-C3 SuperMini (U1)
Connected U1 VIN to +5V, U1 VDD to 3V3, all U1 ground pins to GND
Mapped peripherals:
- NeoPixel data via R12 → U1 GPIO5
- Servo PWM (J2 Pin_3) → U1 GPIO4
- Potentiometer wiper → U1 GPIO2
- Analog header (J3 Pin_3) → U1 GPIO3
- Buttons SW1 and SW2 → U1 GPIO9, GPIO10
Added 330 Ω resistor (R3) in NeoPixel data line

Tasks left

Add 10 µF bulk capacitor at the TPS62130 3.3 V output

Success criteria

✅ ESP32-C3 SuperMini replaced and all peripheral nets preserved
❌ Bulk decoupling capacitor not yet added

Next step Add the 10 µF bulk capacitor (0603) at the TPS62130 output and rerun ERC checks to verify decoupling.

69 days

Ready.

recommend a replacement for J1.

sriramt384

@copilot recommend a replacement for J1.

copilot

I see that the current part for

J1

is a USB Type-C connector, MPN: TYPE-C-31-M-12. While I don't have access to a live database to give you specific alternatives, I can suggest considering connectors with similar specifications from other manufacturers. Here are some general guidelines and manufacturers to consider:

Check the footprint compatibility: Ensure the replacement has a compatible mounting style and footprint.
Current and Voltage Ratings: Make sure the replacement can handle similar or better electrical specifications.
Manufacturers to Consider:
- Amphenol
- TE Connectivity
- Molex
- Hirose Electric
- JST
Specifications:
- Look for a USB Type-C connector supporting similar or better data rates and power delivery.
- Ensure mechanical fitment matches your board design.

You may want to browse distributor websites like Digi-Key, Mouser, or LCSC for specific part numbers and availability. If you tell me more about your specific requirements, I can help narrow down the options further!

Someone is typing...

which pins i have to use for programming

satyasai

@copilot which pins i have to use for programming

copilot

For programming the ESP32-C3-MINI-1 module in your project, you'll typically need to connect several important pins to your programmer or USB-to-Serial converter. Based on standard practices for programming ESP32 modules, the key pins involved in programming are:

IO0 (GPIO0): This pin is used to enter the bootloader mode. It needs to be pulled LOW during reset for the module to enter programming mode.
RXD0 and TXD0: These are the UART pins you'll use for serial communication. RXD0 on your ESP32 module should be connected to TX on your USB-to-Serial converter, and TXD0 to RX.
EN (Enable): Sometimes called RST (Reset), this pin is used to reset the module. Typically, it's connected to a momentary button or can be controlled by the programmer to reset the ESP32 as part of the programming process.
GND (Ground): A common ground between the ESP32 module and your USB-to-Serial adapter or programmer is necessary.
3V3 (3.3V Power): The ESP32 operates at 3.3V, so ensure that it's powered accordingly during programming.

Given these requirements, please proceed with the following connections:

Connect U1:IO0 to your programmer's GPIO to pull it LOW during reset (to enter programming mode).
Connect U1:RXD0 to the TX pin of your USB-to-Serial converter.
Connect U1:TXD0 to the RX pin of your USB-to-Serial converter.
Connect at least one U1:GND pin to your converter's GND pin.
Connect U1:3V3 to a 3.3V supply on your converter or to an external 3.3V power source as required.

Make sure your ESP32 module is properly powered (3.3V) and all devices share a common ground to ensure successful programming. If you're using a USB-to-Serial adapter, double-check the voltage levels to ensure it operates at 3.3V logic to match the ESP32's levels.

Someone is typing...

GND

IC1

USB_D+

3V3

IO1

IO7

Resistance

ESP_BOOT

IO0

ESP_BOOT

R12

Resistance

500 Ω

IO0

IO3

IO6

Capacitance

3.3n F

IO2

Capacitance

1u F

IO1

USB_D+

+5V

IO3

Capacitance

10u F

IO4

ESP_BOOT

3V3

Capacitance

22u F

GND

+5V

IO6

ESP_BOOT

IO5

IO3

Capacitance

10u F

U0RXD

ESP_BOOT

Resistance

220 Ω

ESP_BOOT

+5V

SW2 ~3 - U1 IO10

Capacitance

0.1u F

Resistance

5.1K Ω

ESP_BOOT

IO8

IO4

ESP_BOOT

+5V

Resistance

220 Ω

GND

IO2

IO5

USB_D-

Resistance

10K Ω

IO3

3V3

SW1 ~3 - U1 IO9

USB_D-

IO5

GND

ESP_BOOT

SW2 ~3 - U1 IO10

IO0

Resistance

ESP_BOOT

3V3

R10

Resistance

10K Ω

SW1 ~3 - U1 IO9

U0TXD

IO4

GND

IO5

Resistance

100K Ω

Resistance

220 Ω

ESP_BOOT

IO1

IO7

ESP_BOOT

IO2

ESP_BOOT

GND

Inductance

2.2u H

Reviews

Electrical Rule Checks

Missing Footprints

Reports parts that have no footprint.

Design Rule Checks

Overlapping Copper • 44

Des	Net	Des	Net
C4:P2	GND	U1:GPIO20	None
C5:P1	GND	U1:GPIO7	None
C5:P1	GND	U1:GPIO8	None
J1:GND	GND	U1:GPIO21	None
J1:SHIELD	GND	U1:GPIO21	None
SW1:～4	GND	U1:GPIO21	None
SW2:～1	GND	U1:GPIO0	None
Trace 1eb0	GND	U1:GPIO5	None
Trace 1eb0	GND	U1:GPIO6	None
Trace 63eb	GND	U1:GPIO5	None
Trace 2204	GND	U1:GPIO5	None
Via	GND	U1:GPIO5	None
Trace 1f9e	Net 31	U1:GPIO9	None
Trace 5c36	Net 31	U1:GPIO9	None
IC1:064ceb7e	None	IC1:EP	GND
IC1:064ceb7e	None	IC1:EP	GND
IC1:064ceb7e	None	IC1:EP	GND
IC1:064ceb7e	None	IC1:EP	GND
IC1:064ceb7e	None	Trace 79b3	GND
IC1:064ceb7e	None	Trace 358d	GND
IC1:064ceb7e	None	Trace 358d	GND
IC1:064ceb7e	None	Trace 358d	GND
IC1:064ceb7e	None	Trace 358d	GND
IC1:064ceb7e	None	Trace cec1	GND
IC1:064ceb7e	None	Trace cec1	GND
IC1:064ceb7e	None	Trace cec1	GND
IC1:064ceb7e	None	Trace cec1	GND
IC1:064ceb7e	None	Trace d7a0	GND
IC1:PGND	None	Trace 37c4	GND
IC1:PVIN	None	Trace 0bc7	Net 19
IC1:SW	None	Trace 1ec8	Net 31
IC1:SW	None	Trace 390e	Net 31
IC1:SW	None	Trace 415c	Net 31
IC1:SW	None	Trace fafb	Net 31
U1:GPIO6	None	Trace 7fb7	GND
U1:GPIO7	None	Trace 7fb7	GND
U1:GPIO8	None	L1:P2	GND
U1:GPIO9	None	Trace a4cf	Net 31
U1:GPIO9	None	Trace b510	Net 31
U1:GPIO9	None	Trace c3ed	Net 31
U1:GPIO9	None	Trace d81d	Net 31
U1:GPIO9	None	Trace ebfb	Net 31
U1:GPIO10	None	L1:P1	Net 31
U1:GPIO10	None	Trace dab7	Net 31

Invalid Layer

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

Component Overrides • 14

	Designator	Ruleset
	＊｀REF｀＊	SW1
	＊｀REF｀＊	R4
	＊｀REF｀＊	C6
	＊｀REF｀＊	C3
	＊｀REF｀＊	C2
	＊｀REF｀＊	R7
	＊｀REF｀＊	J1
	＊｀REF｀＊	R8
	＊｀REF｀＊	C5
	＊｀REF｀＊	R9
	＊｀REF｀＊	U1
	＊｀REF｀＊	SW2
	＊｀REF｀＊	R2
	＊｀VALUE｀＊	L1 value

Airwires • 15

	Designators	Net
	J1:GND, C4:P2	GND
	J3:Pin_1, R11:3	GND
	J3:Pin_2, J3:Pin_1	GND
	R11:3, R11:1	GND
	Trace 64ae:Trace 64ae, U1:GND__3	GND
	U1:GND__11, J2:Pin_2	GND
	Via-Island-3:Via-Island-3, R11:1	GND
	U1:IO3, J3:Pin_3	Net 1
	Trace 1feb:Trace 1feb, R11:2	Net 5
	Trace dd9f:Trace dd9f, J2:Pin_3	Net 7
	IO5:IO5, R12:P1	Net 14
	Trace c54c:Trace c54c, D1:DIN	Net 14
	J2:Pin_1, D1:VDD	Net 19
	Trace 33c9:Trace 33c9, C7:P1	Net 19
	Trace b45c:Trace b45c, D1:VDD	Net 19

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 • 21

	Designator	MPN
	C1	None
	C2	None
	C3	None
	C4	None
	C5	None
	C6	None
	C7	None
	J2	None
	J3	None
	L1	None
	R1	None
	R2	None
	R3	None
	R4	None
	R5	None
	R6	None
	R7	None
	R8	None
	R9	None
	R10	None
	R12	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.
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Inspect

ESP32-C3-MINI-1 Module

Controls

Properties

System Architecture

flowchart LR USB_C[USB-C Connector] -->|5V| V5[+5V Net] V5 --> WS[WS2812B NeoPixel] V5 --> SERVO[Servo Header] V5 --> BUCK[TPS62130 Buck Regulator] BUCK -->|3.3V| V3[3.3V Net] V3 --> U1[ESP32-C3 SuperMini] V3 --> POT[10k Potentiometer] V3 --> AI[Analog Input Header] U1 -->|Digital Data| WS U1 -->|PWM| SERVO U1 -->|ADC| POT U1 -->|ADC| AI U1 -->|GPIO Input| SW1[Pushbutton SW1] U1 -->|GPIO Input| SW2[Pushbutton SW2]

License

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

Designator Prefix

Availability & Pricing

Distributor		Qty 1
	Arrow	$1.69–$1.82
	Digi-Key	$4.04–$5.23
	LCSC	$4.54
	Mouser	$2.97
	TME	$2.73
	Verical	$1.20–$1.69

Assets

Thumbnail

ESP32-C3-MINI-1 Module.png

id=ESP32-C3-MINI-1 Module

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