Popular Microcontroller Onboard:Powered by Renesas RA4M1, operating at up to 48 MHz with FPU, 256 KB of Flash memory, and 32 KB of Highlighted Onboard Resources:Equipped with a 14-bit ADC, 12-bit , CAN BUS, USB 2.0, and an onboard RGB LED Expanded 8 IOs:Adds 8 IO pins on the back compared to previous XIAO boards (19 GPIOs in total), enabling more complex applications Powerful Security Features:Built-in hardware encryption, secure boot, key storage, and other functions to application security Software Compatibility:Fully compatible with compatible with IDE compatible with seamless project development and prototyping Product:XIAO RA4M1 Processor:Renesas RA4M1 48-MHz Arm® ®- Core with FPU RAM:32 KB Flash:256 KB LEDs:1 User LED, 1 Power LED, 1 RGB LED Interfaces:19 IOs: 14x Analog,19x Digital, 2x IIC, 2x UART, 2x SPI Buttons:1 RESET Button, 1 BOOT Button Security:AES128/256 Low Power:45μA Software Compatibility:compatible with IDE Working Temperature:-20°C-70°C (The product appearance and printed words depending on the batch, but this does not affect use) Colour:As Shown Material:PCB Specification: B: Welded Package Contents: 1 x Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.