ESP32-C3 Board Design

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0:00

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.
167 days

flux

0:46

Looking for "Identify the exact product shown on this page. Is it an ESP32-C3 SuperMini development board/module? Extract the product name, key description, any pinout or dimensions, and whether it matches a compact ESP32-C3 SuperMini board for replacing an ESP32-C3-MINI-1 module in a custom design." in 3013220.html

Probably yes, that is the right product family for an ESP32-C3 SuperMini, but I could not directly verify that exact LCSC wrapper page content from the link you sent because the page did not expose readable product text to my extractor.
The important part is this:
For your project, that means:
  • If you want to build a board that contains a tiny ready-made controller board, then ESP32-C3 SuperMini is fine
  • If you want a cleaner/custom production PCB, then using the bare ESP32-C3-MINI-1 module is usually the better approach
If you want, send me the actual part number / product title / screenshot from that page, and I can tell you immediately whether it is the exact ESP32-C3 SuperMini variant you want.
Find exact part
Check pinout match
Use bare module instead
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recommend a replacement for J1.
sriramt384

sriramt384

@copilot recommend a replacement for J1.
1y

copilot

I see that the current part for J1J1 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:
  1. Check the footprint compatibility: Ensure the replacement has a compatible mounting style and footprint.
  2. Current and Voltage Ratings: Make sure the replacement can handle similar or better electrical specifications.
  3. Manufacturers to Consider:
    • Amphenol
    • TE Connectivity
    • Molex
    • Hirose Electric
    • JST
  4. 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!
1y
Someone is typing...
3
which pins i have to use for programming
satyasai

satyasai

@copilot which pins i have to use for programming
2y

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:
  1. 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.
  2. 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.
  3. 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.
  4. GND (Ground): A common ground between the ESP32 module and your USB-to-Serial adapter or programmer is necessary.
  5. 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.
2y
Someone is typing...
2
GND
IC1
USB_D+
IO1
IO7
ESP_BOOT
IO0
ESP_BOOT
IO0
IO3
IO6
IO2
IO1
USB_D+
IO3
IO4
ESP_BOOT
3V3
GND
IO6
ESP_BOOT
IO5
IO3
U0RXD
ESP_BOOT
ESP_BOOT
SW2 ~3 - U1 IO10
ESP_BOOT
IO8
IO4
ESP_BOOT
+5V
+5V
GND
GND
IO2
IO5
USB_D-
IO3
SW1 ~3 - U1 IO9
USB_D-
IO5
GND
ESP_BOOT
SW2 ~3 - U1 IO10
IO0
ESP_BOOT
SW1 ~3 - U1 IO9
U0TXD
IO4
GND
IO5
ESP_BOOT
IO1
IO7
ESP_BOOT
IO2
ESP_BOOT
ESP_BOOT
GND
3V3
R7
Resistance
Resistance
R12
Resistance
500 Ω
C6
Capacitance
3.3nF
C1
Capacitance
1uF
+5V
C4
Capacitance
10uF
U1
3V3
C5
Capacitance
22uF
J1
+5V
C3
Capacitance
10uF
R3
Resistance
220 Ω
+5V
C2
Capacitance
0.1uF
R6
Resistance
5.1KΩ
R2
Resistance
220 Ω
L1
Inductance
2.2uH
J3
R9
Resistance
10KΩ
3V3
R4
Resistance
Resistance
3V3
R10
Resistance
10KΩ
R8
Resistance
100KΩ
R1
Resistance
220 Ω
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ESP32-C3-MINI-1 Module

ESP32-C3-MINI-1 Module thumbnail
ESP32-C3 SuperMini Compact Control Module with NeoPixel, Servo Header, Trimmer, ADC, Pushbuttons

Properties

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]

creativecommons.org/licenses/by/4.0/

M

Pricing & Availability

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

Controls