SAMD21 Microcontroller Board Products

• ATSAMD21G18 32-bit 48MHz microcontroller chip
• Interface: 25x GPIO pins, 12 of which are 10-bit 350kbs ADC, and one 10-bit DAC. There's a hardware SPI port, hardware I2C port and hardware UART. Logic level is 3.3V.
• Memory: 2MB SPI Flash storage chip is included on board for all your scripts, libraries, and files. ATSAMD21G18 processor has 256KB Flash and 32KB of RAM
• Voltage Supply: 7V to 9V polarity protected DC or the Micro-B USB connector to any 5V USB source
• Four indicator LEDs and one NeoPixel, on the front edge of the PCB, for easy debugging. One green power LED, two RX/TX LEDs for data being sent over USB, and a red LED connected. Next to the reset button there is an RGB NeoPixel that can be used for any purpose.
• Board Size: 71mm x 53mm (2.8in x 2.1in)

• ATSAMD21G18 32-bit 48MHz microcontroller chip
• Interface: 25x GPIO pins, 12 of which are 10-bit 350kbs ADC, and one 10-bit DAC. There's a hardware SPI port, hardware I2C port and hardware UART. Logic level is 3.3V.
• Memory: 2MB SPI Flash storage chip is included on board for all your scripts, libraries, and files. ATSAMD21G18 processor has 256KB Flash and 32KB of RAM
• Voltage Supply: 7V to 9V polarity protected DC or the Micro-B USB connector to any 5V USB source
• Four indicator LEDs and one NeoPixel, on the front edge of the PCB, for easy debugging. One green power LED, two RX/TX LEDs for data being sent over USB, and a red LED connected. Next to the reset button there is an RGB NeoPixel that can be used for any purpose.
• Board Size: 71mm x 53mm (2.8in x 2.1in)

• ATSAMD21G18 32-bit 48MHz ARM Cortex-M0+ microcontroller chip
• Memory: 4MB Flash Memory, 32KB of EEPROM (emulated in Flash), 32KB SRAM
• Interface: 26x GPIO pins, 14x ADC Channels at 12-bit Resolution, 1x 10-bit DAC, Qwiic Connector for I2C
• Voltage Supply: Vin 4.2V to 6.0V for charger, otherwise 3.5V to 6.0V, VBATT 3.7V Lipo, VCC 600mA @3.3V
• RGB LED

• ATSAMD21G18 32-bit 48MHz ARM Cortex-M0+ microcontroller chip
• Memory: 4MB Flash Memory, 32KB of EEPROM (emulated in Flash), 32KB SRAM
• Interface: 26x GPIO pins, 14x ADC Channels at 12-bit Resolution, 1x 10-bit DAC, Qwiic Connector for I2C
• Voltage Supply: Vin 4.2V to 6.0V for charger, otherwise 3.5V to 6.0V, VBATT 3.7V Lipo, VCC 600mA @3.3V
• RGB LED

• ATSAMD21E18 32-bit Cortex M0+ microcontroller - 48MHz 32 bit processor with 256KB Flash and 32KB RAM
• USB Type-C connector
• Can be used with Arduino IDE or CircuitPython
• Built in RGB NeoPixel LED
• 11x GPIO pins with 10-bit analog output on one I/O pin, 9x 12-bit analog inputs, 9x PWM outputs, I2C/UART/SPI/I2C
• 3.3V regulator with 600mA peak output
• Reset switch for starting your project code over or entering bootloader mode
• Board Size: 0.81in x 0.70in

• ATSAMD21E18 32-bit Cortex M0+ microcontroller - 48MHz 32 bit processor with 256KB Flash and 32KB RAM
• USB Type-C connector
• Can be used with Arduino IDE or CircuitPython
• Built in RGB NeoPixel LED
• 11x GPIO pins with 10-bit analog output on one I/O pin, 9x 12-bit analog inputs, 9x PWM outputs, I2C/UART/SPI/I2C
• 3.3V regulator with 600mA peak output
• Reset switch for starting your project code over or entering bootloader mode
• Board Size: 0.81in x 0.70in

• ATSAMD21E18 32-bit Cortex M0+ microcontroller - 48MHz 32 bit processor with 256KB Flash and 32KB RAM
• USB Type-C connector
• Can be used with Arduino IDE or CircuitPython
• Built in RGB NeoPixel LED
• 11x GPIO pins with 10-bit analog output on one I/O pin, 9x 12-bit analog inputs, 9x PWM outputs, I2C/UART/SPI/I2C
• 3.3V regulator with 600mA peak output
• Reset switch for starting your project code over or entering bootloader mode
• Board Size: 0.81in x 0.70in

• ATSAMD21E18 32-bit Cortex M0+, 48 MHz 32 bit processor
• 256KB Flash, 32 KB RAM
• Native USB supported by every OS. Can be used with Arduino IDE or CircuitPython.
• Built in green ON LED, red pin #13 LED, RGB DotStar LED
• All 5 GPIO pins are available and are not shared with USB. Five GPIO pins with digital input/output. All of the I/O pins can be used for 12-bit analog input. True 10-bit analog output on one I/O pin. Two high speed PWM outputs. Native hardware SPI, I2C and Serial available on two pads
• Reset switch for starting your project code over
• Board Size: 27mm x 15.3mm (1.07in x 0.6in)

• ATSAMD21E18 32-bit Cortex M0+, 48 MHz 32 bit processor
• 256KB Flash, 32 KB RAM
• Native USB supported by every OS. Can be used with Arduino IDE or CircuitPython.
• Built in green ON LED, red pin #13 LED, RGB DotStar LED
• All 5 GPIO pins are available and are not shared with USB. Five GPIO pins with digital input/output. All of the I/O pins can be used for 12-bit analog input. True 10-bit analog output on one I/O pin. Two high speed PWM outputs. Native hardware SPI, I2C and Serial available on two pads
• Reset switch for starting your project code over
• Board Size: 27mm x 15.3mm (1.07in x 0.6in)

• ATSAMD21E18 32-bit Cortex M0+, 48 MHz 32 bit processor
• 256KB Flash, 32 KB RAM
• Native USB supported by every OS. Can be used with Arduino IDE or CircuitPython.
• Built in green ON LED, red pin #13 LED, RGB DotStar LED
• All 5 GPIO pins are available and are not shared with USB. Five GPIO pins with digital input/output. All of the I/O pins can be used for 12-bit analog input. True 10-bit analog output on one I/O pin. Two high speed PWM outputs. Native hardware SPI, I2C and Serial available on two pads
• Reset switch for starting your project code over
• Board Size: 27mm x 15.3mm (1.07in x 0.6in)

• ATSAMD21E18 32-bit Cortex M0+, 48 MHz 32 bit processor
• 256KB Flash, 32 KB RAM
• Native USB supported by every OS. Can be used with Arduino IDE or CircuitPython.
• Built in green ON LED, red pin #13 LED, RGB DotStar LED
• All 5 GPIO pins are available and are not shared with USB. Five GPIO pins with digital input/output. All of the I/O pins can be used for 12-bit analog input. True 10-bit analog output on one I/O pin. Two high speed PWM outputs. Native hardware SPI, I2C and Serial available on two pads
• Reset switch for starting your project code over
• Board Size: 27mm x 15.3mm (1.07in x 0.6in)

• ATSAMD21G18 32-bit 48MHz Cortex M0+ microcontroller chip
• Interface: 23 GPIO pins (13x PWM), 11 ADC Channels at 12-bit Resolution, one 10-bit DAC, micro USB, 3.3V logic
• Memory: 256KB Flash, 32KB SRAM, and 2MB SPI Flash chip for storing files
• Voltage Supply: 5V USB, BAT battery input pin 3.5V - 6VDC for an alternative power source to USB
• Built in red pin #13 LED and RGB DotStar LED
• Board Size: 36.0mm x 17.8mm (1.4in x 0.7in)

• ATSAMD21E18 32-bit Cortex M0+ 48MHz processor
• 256KB Flash, 32 KB RAM
• Native USB supported by every OS. Can be used with Arduino IDE or CircuitPython.
• Built in RGB DotStar LED
• Each I/O pad can be used for 12-bit analog input, or digital input/output with internally connected pullups or pulldowns. True 10-bit analog output on one I/O pad. Two high speed PWM outputs on other two I/O Pads. Native hardware I2C or Serial available on two pads.
• On/Off switch built in. Reset switch for starting your project code over.
• JST battery connector
• Board Size: 1.08in vertical diameter x 1.1in horizontal diameter

• ATSAMD21E18 32-bit Cortex M0+ 48MHz processor
• 256KB Flash, 32 KB RAM
• Native USB supported by every OS. Can be used with Arduino IDE or CircuitPython.
• Built in RGB DotStar LED
• Each I/O pad can be used for 12-bit analog input, or digital input/output with internally connected pullups or pulldowns. True 10-bit analog output on one I/O pad. Two high speed PWM outputs on other two I/O Pads. Native hardware I2C or Serial available on two pads.
• On/Off switch built in. Reset switch for starting your project code over.
• JST battery connector
• Board Size: 1.08in vertical diameter x 1.1in horizontal diameter

• ATSAMD21G18 32-bit 48MHz ARM Cortex-M0+
• Memory: 256K Flash, 32KB EEPROM (emulated in Flash), and 32KB SRAM
• I/O: 22x GPIO pins, 14x Channel 12-bit ADC & 12-bit DAC, UART/I2C/SPI, 3.3V logic
• Micro-B USB connector for power and data transfer with integrated USB Controller
• Voltage Supply: RAW 3.5V to 6.0V, VCC 600mA @3.3V
• Pro Mini/Micro Layout

• ATSAMD21G18 32-bit 48MHz ARM Cortex-M0+
• Memory: 256K Flash, 32KB EEPROM (emulated in Flash), and 32KB SRAM
• I/O: 22x GPIO pins, 14x Channel 12-bit ADC & 12-bit DAC, UART/I2C/SPI, 3.3V logic
• Micro-B USB connector for power and data transfer with integrated USB Controller
• Voltage Supply: RAW 3.5V to 6.0V, VCC 600mA @3.3V
• Pro Mini/Micro Layout

• ATSAMD21E 32-bit 48MHz ARM Cortex-M0+
• Interface: 12x GPIO pins, 5x 12-bit ADC & 12-bit DAC, UART/I2C/SPI, micro USB connector, 3.3V logic
• Memory: 256K Flash and 32KB SRAM
• Voltage Supply: 5V USB or 3.3V pin (power header pins are not regulated). On the underside of the Qwiic Micro there are open pads for a LiPo Battery
• Power on/off switch
• Board Size: 1in x 1in

• ATSAMD21E 32-bit 48MHz ARM Cortex-M0+
• Interface: 12x GPIO pins, 5x 12-bit ADC & 12-bit DAC, UART/I2C/SPI, micro USB connector, 3.3V logic
• Memory: 256K Flash and 32KB SRAM
• Voltage Supply: 5V USB or 3.3V pin (power header pins are not regulated). On the underside of the Qwiic Micro there are open pads for a LiPo Battery
• Power on/off switch
• Board Size: 1in x 1in

• ATSAMD21G18 ARM Cortex-M0+ 32bit 48MHz microcontroller
• Memory: 256KB flash memory and 32KB SRAM
• Interface: USB Type-C, 11x Digital I/O with 10x PWM, 11x Analog Input 12-bit ADC, 1x Analog Output 10-bit DAC, 1x I2C, 1x UART, and 1x SPI, SWD pins
• 14-Pins with 0.1in (2.54mm) pin pitch for breadboard
• Board Size: 21mm x 17.8mm (0.83in x 0.70in)

Arduino Nano 33 IoT board with pre-soldered headers (ABX00032)

• The ease of use of a Nano board with the addition of secure IoT and Bluetooth (BLE) connectivity
• The Wi-Fi and Bluetooth connectivity is performed with the u-blox NINA-W102 module, which provides 2.4GHz 802.11b/g/n Wi-Fi up to 72Mbps, BT v4.2 BR/EDR and BLE, 2MB SPI Flash, and an onboard PIFA antenna.
• Includes a 32-bit 48MHz SAMD21 Arm Cortex-M0+ processor with 256KB Flash and 32KB SRAM.
• Secure WiFi and Bluetooth connectivity with a ECC608A crypto chip provides IoT security.
• Two 15 pin headers (one on each side) that are pin to pin compatible with the original Arduino Nano.
• Peripheral interfaces: digital I/O, PWM, 12-bit ADC, and 10-bit DAC
• Communication interfaces: UART/I2C/SPI/I2S/LIN
• Micro-B USB connector for power, programming, and data transfer
• Onboard reset button, LED that turns on when connected to the 5V input from either USB or VIN pin, and 6-axis IMU LSM6DSL chip (3D accelerometer and 3D gyroscope)
• Board Size: 45mm x 18mm (1.77in x 0.71in)

Arduino Nano 33 IoT board with pre-soldered headers (ABX00032)

• The ease of use of a Nano board with the addition of secure IoT and Bluetooth (BLE) connectivity
• The Wi-Fi and Bluetooth connectivity is performed with the u-blox NINA-W102 module, which provides 2.4GHz 802.11b/g/n Wi-Fi up to 72Mbps, BT v4.2 BR/EDR and BLE, 2MB SPI Flash, and an onboard PIFA antenna.
• Includes a 32-bit 48MHz SAMD21 Arm Cortex-M0+ processor with 256KB Flash and 32KB SRAM.
• Secure WiFi and Bluetooth connectivity with a ECC608A crypto chip provides IoT security.
• Two 15 pin headers (one on each side) that are pin to pin compatible with the original Arduino Nano.
• Peripheral interfaces: digital I/O, PWM, 12-bit ADC, and 10-bit DAC
• Communication interfaces: UART/I2C/SPI/I2S/LIN
• Micro-B USB connector for power, programming, and data transfer
• Onboard reset button, LED that turns on when connected to the 5V input from either USB or VIN pin, and 6-axis IMU LSM6DSL chip (3D accelerometer and 3D gyroscope)
• Board Size: 45mm x 18mm (1.77in x 0.71in)