The AVR-IoT Cellular Mini development board is a hardware platform to evaluate and develop IoT solutions with the Microchip AVR128DB48 AVR® microcontroller, ATECC608B secure element, and the Sequans Monarch 2 GM02S cellular module. Included with the development board is a SIM card from Truphone with 150 MB data ready for activation.

The Sequans Monarch 2 GM02S requires a connection to a LTE-M or NB-IoT capable cellular network. With a connection to a capable cellular network the ATECC608B can be used to authenticate the hardware with the cloud to uniquely identify every board.

AVR128DB48 AVR® Microcontroller
ATECC608B CryptoAuthentication™ Device
25CSM04 Serial EEPROM - 4 Mb
Sequans Monarch 2 GM02S Cellular Module
824MHz-2170MHz Cellular Flexible Antenna
Prepaid SIM card from Truphone - 150 MB data included
Nano SIM Card Holder
semis Footprint
Five User LEDs
Two Mechanical Buttons
VMK3-9002 32.768 kHz Crystal
VEML3328 Color Sensor
MCP9808 Temperature Sensor
Ad fruit Feather compatible edge connector
Qwiic® I2C connector
On-board Debugger
Board identification in Microchip Studio and Microchip MPLAB® X
One green power and status LED
Virtual serial port (USB CDC)
Two logic analyzer channels (debug GPIO)
Arduino compatible with its own Cellular Arduino Library
USB, Battery, and external-input power options
MCP73830 Li-Ion/LiPo Battery Charger, with charge status LED
Two fixed power domains, 1.8V and 3.3V

Out of the box, the MCU come preloaded with a firmare image that enables you to quickly connect and send data to the Microchip Sandbox in AWS using the on-board temperature and color sensors. Once you are ready to build your own custom design, you can easily get started with development using the Arduino. The AVR-IoT Cellular Mini has full Arduino support through a library build on top of the open-source DxCore.