M5Stamp C3U ESP32-C3 IoT Module Kit (5-Pack)

Description

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Description

Stamp-C3U is a cost-effective RISC-V minimal core board. It uses the Espressif ESP32-C3 as the main control chip, which features a RISC-V 32-bit single-core processor with a clock speed of up to 160 MHz. It comes with 400 KB SRAM + 4MB FLASH and integrates 2.4 GHz Wi-Fi. The core board supports security mechanisms such as secure boot, flash encryption, and digital signatures. Despite its compact size, it is highly functional and can meet diverse IoT application needs.

Features

• Supports multiple application forms (SMT, DIP, flying leads)
• Equipped with high-temperature plastic armor, supports SMT reflow temperature (230°C)
• Includes 5V->3.3V DC/DC circuit, GPIOx14
• Type-C interface
• Programmable RGB LED x1, reset button x1, button x1
• High-performance 3D antenna, providing stable and reliable wireless communication quality
• ESP32 minimal system board
• Development Platform
  • Arduino IDE
  • ESP-IDF
  • PlatformIO

Includes

• 5 x Stamp-C3U
• 5 x High-temperature resistant stickers

Applications

Specifications

Specification	Parameter
SoC	ESP32-C3@32-bit RISC-V single-core processor, up to 160MHz
Flash	4MB
SRAM	400KB
ROM	384KB
RTC SRAM	8KB
Wi-Fi	2.4 GHz Wi-Fi (supports 20/40MHz bandwidth, 802.11 b/g/n, up to 150Mbps)
Input Voltage	5V@500mA
Human Interaction	Programmable physical button x 1, reset/debug button x 1, programmable RGB LED (SK6812) x 1
USB Interface	USB Type-C x1
Antenna Type	2.4G 3D antenna
Module Peripheral Interface Resources	ADC, GPIO, SPI, UART, I2C, I2S, PWM, RMT, DMA, USB serial, TWAI
IO Interface x14	G0, G1, G3, G4, G5, G6, G7, G8, G9, G10, G18, G19, G21, G22
IO Interface Pitch	2.54mm
Mounting Screw Spec	M2 x 4 countersunk hex key machine screw
Product Size	34.0 x 20.0 x 4.6mm
Product Weight	4.1g
Package Size	138.0 x 93.0 x 7.0mm
Gross Weight	22.8g

Product Comparison

The difference between C3U and C3 is that Stamp-C3U has removed the USB download chip and instead uses the built-in USB Serial of ESP32-C3 for program downloading.

Model	Main Control	IO Count	Button IO	USB Download Chip	USB Interface Function
Stamp-C3	ESP32-C3	13	G3	CH9102	Download / Serial
Stamp-C3U	ESP32-C3	14	G9	/	Download / JTAG / CDC Serial

Learn and Documents

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