Stamp-C3

SKU:C056-B

Description

Stamp-C3 is a cost-effective, minimal RISC-V core board powered by the ESP32-C3 SoC from Espressif. It integrates a 32-bit single-core RISC-V processor running at up to 160 MHz, 400 KB SRAM, and 4 MB FLASH, together with 2.4 GHz Wi-Fi connectivity. The board supports secure boot, Flash encryption, digital signature and other security features. Despite its tiny size, it delivers robust performance to meet diverse IoT application requirements.

Tutorial

Arduino IDE

This tutorial will show you how to program and control the Stamp-C3 device with the Arduino IDE.

Features

Supports multiple mounting methods (SMT, DIP, flying leads)
Equipped with a high-temperature plastic shield, compatible with SMT reflow (230 °C)
On-board 5 V → 3.3 V DC/DC, 13 × GPIOs
Type-C port
1 × programmable RGB LED, 1 × reset button, 1 × user button
High-performance 3D antenna for stable, reliable wireless communication
Smallest ESP32 system board
Development Platform
- Arduino IDE
- ESP-IDF
- PlatformIO

Includes

5 × Stamp-C3
5 × High-temperature Labels

Applications

DIY prototyping
Industrial automation
Smart home

Specifications

Specification	Parameter
SoC	ESP32-C3, 32-bit single-core RISC-V, up to 160 MHz
Memory	384 KB ROM, 400 KB SRAM, 8 KB RTC SRAM, 4 MB FLASH
Wi-Fi	2.4 GHz band, 20 MHz / 40 MHz bandwidth, IEEE 802.11 b/g/n, data rate up to 150 Mbps
Input Voltage	5 V @ 500 mA
Human Interface	1 × programmable physical button, 1 × reset/debug button, 1 × programmable RGB LED (SK6812)
USB Port	1 × Type-C
Antenna Type	2.4 G 3D antenna
Peripheral Interfaces	ADC, GPIO, SPI, UART, I²C, I²S, PWM, RMT, DMA, USB-Serial, TWAI
IO (13 pins)	G21, G20, G9, G18, G19, G1, G0, G10, G8, G7, G6, G5, G4
Pin Pitch	2.54 mm
Mounting Screws	M2 × 4 countersunk, hex-socket, metric
Product Size	34.0 × 20.0 × 4.6 mm
Product Weight	20.0 g
Package Size	138.0 × 93.0 × 5.6 mm
Gross Weight	23.3 g

Learn

Reflow Profile Supported by the Enclosure

Schematics

PinMap

SK6812 & Button

ESP32-C3	G2	G3
SK6812	DI	/
Button	/	SW

Model Size

PCB

LCEDA Stamp-C3 Component

Datasheets

ESP32-C3

Softwares

Arduino

ESP-IDF

Stamp-C3 RGB LED Control Example

USB Driver

Click the link below to download the driver for your operating system. Choose the installer that matches your OS bit version. (If you are unsure which USB chip your device uses, you can install both drivers. CH9102_VCP_SER_MacOS v1.7 may report an error during installation, but the driver is actually installed—just ignore the message.) If you encounter issues such as download timeout or “Failed to write to target RAM,” try reinstalling the driver.

Driver Name	Supported Chip	Download
CH9102_VCP_SER_Windows	CH9102	Download
CH9102_VCP_SER_MacOS v1.7	CH9102	Download

MacOS Port Selection

Two ports may appear on macOS. Please select the port whose name contains wchmodem.