FireBeetle is a product series of small development boards developed by DFRobot. It contains various chipboards and expansion boards that can be used alone or in combination. The same as Arduino M0, FireBeetle M0 also adopts the high-performance low-power chip ATSAMD21G18 ARM Cortex M0+. With up to 48MHz frequency, it offers 32kb RAM and 256kb Flash, which is 8 times and 16 times of Atmega328 respectively. Designed with 16MB SPI Flash and built-in 12MB flash drive, FireBeetle M0 simplifies the data interaction between the user's desktop system and the board and supports SPI Flash-based easy flash database. Besides, the built-in SPI Flash-based word model allows users to directly display multi-language words, such as Chinese, British, Japanese, and Korean.

FireBeetle M0 adopts a convenient Type-C port and a more comfortable horizontal switch. The onboard WS2812 RGB indicator and FPC make the display much easier to use.

• Low Power Consumption
• Small Size
• Onboard FPC
• Built-in U disk, database, word library based on SPI Flash 

• Input Voltage: 3.3V~5.5V
• Supports Low Power Consumption: 30uA
• Supports Maximum Charging Current: 300mA
• Processor: ATSAMD21G18
• SPI: 1
• I2C: 1
• UART: 2
• RGB LED: WS2812
• Interface Mode: FireBeetle V2 series compatible
• Working Temperature: -40℃~+85℃
• Dimension: 25.4×60(mm)/1.0×2.36”

• Product wiki

• Firebeetle Board-M0(V1.0) Module x1
• 18pin-2.54mm Pin Header x1
• 18pin-2.54mm Female Header x1
• 14pin-2.54mm Pin Header x1
• 14pin-2.54mm Female Header x1