The M5Stack Stamp C3U is based on a 32-bit RISC-V microcontroller with a frequency of 160 MHz. With 400 KB of RAM and 4 MB of onboard flash storage, it is suitable for a wide range of applications. The Stamp C3U supports WiFi and Bluetooth 5.0, as well as Bluetooth Mesh functionality. It is compatible with the UIFlow graphical programming platform, is script-free, offers cloud push, and is fully compatible with Arduino, MicroPython, ESP32-IDF, and other mainstream development platforms for quickly creating various applications. The difference from the C3 Mate is that the C3U does not have a built-in USB download chip. The C3U uses the USB serial interface from the ESP32-C3 for downloading.

Features:

• High-temperature resistant plastic housing up to 230 °C
• Integrated programmable RGB LEDs and buttons
• Based on ESPRESSIF ESP32-C3 RISC-V MCU
• Supports UIFlow graphical programming, Arduino, and ESP32-IDF
• Multi-IO pinout 13x GPIO
• USB-C

Technical Details:

• Manufacturer: M5Stack
• Manufacturer SKU: K122
• MCU: ESP32-C3 32-Bit Single-Core 160 MHz
• Memory: 384 KB ROM, 400 KB SRAM, 8 KB RTC SRAM, 4 MB FLASH
• WiFi: 2.4 GHz 20-40 MHz bandwidth
• Bluetooth: Bluetooth 5.0, Bluetooth Mesh Support
• Voltage: 5 V
• Current: 500 mA
• USB Interface: Type-C
• Antenna: 2.4 G 3D
• Buttons: 1x programmable button, 1x reset button
• I/O: G4-G21
• Dimensions: 34 x 20 x 4.5 mm
• Weight: 11 g

Delivery Contents:

• 1x M5Stamp C3U
• 1x Pin Layout Sticker
• 2x 9-Pin Header
• 2x 6-Pin Header
• 2x 90° Grove Connector
• 1x M2 Allen Key.