Microchip’s AVR-IoT Cellular Mini Development Board provides an easy-to-program platform for connecting sensors and actuators over 5G.
For narrowband wireless -networking of sensors and actuators, Microchip is now producing a development board based on the AVR128DB48 microcontroller. The board works in the 5G network and is intended to close gaps in LoRa networks.
The 8-bit board offers, among other things, six analog inputs, seven digital IO pins as well as one I2C and two serial interfaces . Temperature and color sensors that can be read out via I2C are already on the circuit board. Power is supplied via a USB-C socket or a battery (3.7V lithium). The charging electronics are present on the board in Adafruit feather format. An external radio antenna is included.
SIM card is part of the board
Data exchange takes place via the manufacturer’s cloud, a corresponding SIM card for wireless network access is part of the board. It is free of charge for 90 days and allows up to 150 megabytes of data transfer during this time.
The board is programmed using the Arduino IDE. The required libraries and example programs are available via a GitHub repository. This makes it possible, for example, to exchange data via HTTPS and MQTT with common smart home systems. Detailed documentation for the board is available online.
The development board is available direct from the manufacturer for US$60.