Sferalabs Iono Pi Max Series User Manual page 11

Pi board and acting on the Raspberry Pi Compute Module hardware reset line. The
hardware watchdog can also control the microSD switch matrix, swapping the boot
card in case the watchdog is triggered
✓ powerful and user-programmable 32 bit microcontroller (ATSAME54), with 1 MB
program memory and 256 KB RAM. The microcontroller is interconnected to the
Raspberry Pi via I2C, USB and CAN. It can also take direct low-level control of all serial
ports and digital as well as analog I/O
✓ integrated Serial Wire Debug (SWD) interface to the Iono Pi Max microcontroller,
allowing in-field firmware upgrades, but also development and debugging, directly from
the Raspberry Pi
✓ embedded Microchip ATECC608A secure element chip
✓ front-panel RGB LEDs for power supply and serial line activity, can also be directly
controlled by the Raspberry Pi
✓ on-board piezoelectric buzzer, for acoustic feedback
✓ front-panel push-button, connected to a GPIO pin
✓ power supply, serial and I/O connections on pluggable terminal blocks
✓ internal temperature sensors for system temperature monitoring
✓ internal fan, controlled by the microcontroller based on current load and internal
temperature
✓ packaged in a compact 6 modules DIN rail case
✓ optional earthquake sensor module
Iono Pi Max 3+:
✓ pre-installed and tested Raspberry Pi Compute Module 3+, Lite, 8GB, 16GB or 32GB
eMMC versions.
11 Iono Pi Max User Guide