Buy M5Stack Official Stamp C3U IoT Development Board EPS32 C3 Programmable Development Board best price
Description:
The newly M5Stamp C3U featuring ESPRESSIF ESP32-C3 RISC-V MCU, with Wi-Fi 5 (LE) connectivity, applicable for home appliances and Industrial Automation. By combining RSA-3072-based secure boot and the AES-128-XTS-based flash encryption. The compact size and powerful functions, make it applicable for multiple IoT scenarios.
The M5Stamp C3U is based on 32-bit RISC-V microcontroller, and operates at a maximum clock frequency of 160 MHz. With 400 KB of internal RAM and 4 MB Flash, it can facilitate many different use cases, involving connected devices. The M5Stamp C3U provides, Furthermore, the exceptional heat resistance plastic enclosure is sustained at a higher operating temperature.
Product Features:
MULTIPLE STYLE:
Three types soldering options are available (SMT, DIP, flywires);
High-temperature resistant plastic enclosure, Peak temperature = 230℃;
HIGH INTEGRATION:
M5Stamp C3 contains 5V->3.3V DC/DC design, GPIOx14;
USB Type-C port;
Programmable RGB LED x1, Reset button x1, button x1;
3D antenna, providing stable and reliable wireless communication.
DEVELOPMENT PLATFORM:
Arduin0, ESP32-IDF (UIFlow support coming soon)
Specification:
ESP32-C3: 32bit RISC-V single-core processor, clocked at 160 MHz
Storage: 384KB ROM, 400KB SRAM, 8KB RTC SRAM, 4MB FLASH
Wi-Fi: 2.4 GHz band supports 20 MHz and 40 MHz bandwidth, IEEE 802.11 b/g/n protocol, data rate up to 150 Mbps
Input voltage: 5V @ 500mA
HMI: Programmable physical button x 1, reset debugging button x 1, programmable RGB LED (SK6812) x 1
USB interface: TypeC x1
Antenna Type: 2.4G 3D Antenna
Module peripheral interface resources: ADC, GPIO, SPI, UART, I2C, I2S, PWM, RMT, DMA, USB serial port, TWAI
IO interface x14: G0, G1, G3, G4, G5, G6, G7, G8, G9, G1O, G18, G19, G21, G22
IO interface spacing: 2.54mm
Net weight: 3.8g
Product size: 34 x 20 x 4.6mm
Packing size: 85 x 55mm sealing bag (translucent)
Package included:
1 x M5Stamp C3U
1 x Heat Resistant Sticker
2 x 2.54-12P header
2 x 2.54-10P header
2 x 90° Grove Connector
1 x M2 Hex Key
Application:
DIY, Prototyping
Industrial Automation
Smart Home
Wearable Devices
Medical Devices
Consumer Electronics
Product comparison
Model |
Master |
IO quantity |
Button IO |
USB chip |
USB interface function |
STAMP-C3 |
ESP32-C3 |
13 |
G3 |
CH9102 |
Download / Serial |
STAMP-C3U |
ESP32-C3 |
14 |
G9 |
/ |
Download / JTAG / CDC Serial |
Note: The newly updated C3U shares the same features as C3, but the difference is that M5Stamp C3U without the USB download chip and the program download method is different(The C3U uses the ESP32-C3’s built-in USB Serial for program download).
PinMap

Schematic

The shell supports Reflow Profile

Specification: M5Stack Official Stamp C3U IoT Development Board EPS32 C3 Programmable Development Board
Weight | 0.004 kg |
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