M5Stack M5stamp C3U Mate with Pin Headers is a compact microcontroller board based on a 32-bit RISC-V MCU operating at a maximum clock frequency of 160MHz. The M5stamp C3U Mate features an Espressif Systems ESP32-C3 RISC-V MCU with Wi-Fi® and BLUETOOTH® 5 (LE) connectivity. The M5stamp C3U Mate provides full Bluetooth 5.0 long-range (LR) support, including long-range and mesh networking functions, and achieves building devices with great coverage and improved usability. The M5stamp C3U Mate has 400KB of internal RAM and 4MB Flash and can facilitate many different use cases involving connected devices. The M5stamp C3U Mate is ideal for use in industrial automation, smart home, wearable devices, medical devices, and consumer electronics.