FireBeetle 2 Board M0 ARM Cortex M0+ ATSAMD21G18

The DFRobot FireBeetle 2 Board M0 carries the ATSAMD21G18, an ARM Cortex-M0+ with 48 MHz, 32 KB SRAM and 256 KB flash, like the Arduino M0. Added to this are 16 MB SPI flash, 12 MB of it as a USB drive on the computer, a font library for Chinese, English, Japanese and Korean and a WS2812 RGB LED. A DFRobot display is connected to the GDI socket with a flat cable. Programming and charging are done via USB-C; a LiPo battery can be connected via PH2.0.

According to DFRobot, FireBeetle 2 and the first FireBeetle series are not compatible in pins and size, nor are the expansion boards.

Recommended Accessories:

• 1.54" 240x240 IPS TFT LCD Display with MicroSD
• Gravity IO Expansion Shield for FireBeetle 2 (ESP32-E/M0)
• JST 2.0 Lipo Connection Cable 15cm with Plug

Features:

• ARM Cortex-M0+ ATSAMD21G18 with 48 MHz
• 16 MB SPI flash: USB drive with 12 MB, simple database (DFRobot_EasyFlash library), font library
• USB-C for programming and charging, slide switch for the power supply
• WS2812 RGB LED on pin 8, red LED on pin 13, button on pin 4
• GDI socket for DFRobot displays
• Charging circuit for 3.7 V LiPo battery with PH2.0 connector
• Logic level 3.3 V, almost all pins with PWM, all pins interrupt-capable
• Arduino IDE: Serial outputs via USB, Serial1 on TX1/RX1, Serial2 on TX/RX
• M2 mounting holes

Application Examples:

• Small devices with display via GDI
• Data loggers that provide files as a USB drive
• Portable devices with battery

Documentation:

• Wiki DFRobot DFR0652 with pinout and examples

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR0652
• Processor: ATSAMD21G18, ARM Cortex-M0+
• Clock frequency: 48 MHz
• Memory: 32 KB SRAM, 256 KB flash, plus 16 MB SPI flash
• Input voltage: 3.3 V to 5.5 V DC
• Logic level: 3.3 V
• GPIO: 25, ADC: 6 × 12 bit, DAC: 1 × 10 bit on A0
• SPI: 1, I2C: 1, UART: 2
• RGB LED: WS2812
• Charging current: 300 mA
• Low-power mode: 30 µA
• Operating temperature: -40 °C to 85 °C
• Dimensions: 25.4 × 60 × 7.4 mm
• Weight: 22 g

Scope of Delivery:

• 1× Firebeetle Board-M0 ARM Cortex M0+
• 1× Pin header 1 × 18
• 1× Female header 1 × 18
• 1× Pin header 1 × 14
• 1× Female header 1 × 14