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M5Stack Unit CardKB v1
it communicates through the I2C interface and provides 8 configurable I/O expansion ports for digital input/output
2mm Weight 32g +/-10% Temperature Range -10C to +60C Soft Start Yes Programmable Yes Reference Documents
SPI interface: the module connects through SPI for controller integration and stacked M5Stack Core expansion
and battery support
FireBeetle 2 ESP32-S3 AI Camera Board | Matter IoT Microcontroller Rainfall M5Stack Unit CardKB v1The DFRobot FireBeetle 2 ESP32 S3 is a high performance AIoT microcontroller designed for smart applications. Powered by a 240 MHz Xtensa dual core LX7 processor, it features 16MB Flash and 8MB PSRAM for enhanced storage. The board includes an onboard OV2640 2MP camera with an independent power supply, enabling image recognition and smart monitoring. Supporting WiFi (802. 11 b g n) and Bluetooth 5 (LE) plus Mesh and Matter protocols, it offers
