Sensor Hub is the main chassis board that physically, electrically, and logically connects the whole system into a fully functional IoT sensor device. It has a compact footprint and allows to securely attach up to four modules of arbitrary functionality. It manages interaction and data trafficking among all system components through simple user-programmable scripts running on low-power, yet capable ARM Cortex-M class processor. Among many important features, it includes built-in, efficient power supply, non-volatile Flash memory for scripts and OTA firmware updates, non-volatile EEPROM for storing sensor data, as well as tamper-proof cryptographic vault and hardware acceleration for crypto algorithms. It meets extended temperature specs for industrial deployments.
- 32-bit low-power ARM Cortex-M0 Application Processor
- Hardware security features
- tamper-proof crypto private key vault and manager
- hardware-accelerated encryption/decryption
- Additional, fast Flash memory for OTA firmware updates
- High-reliability EEPROM memory for sensor data caching
- Easy-to-use programming IDE, supporting Arduino-compatible API
- Built-in high efficiency voltage regulator
- Four universal Sockets for up to four independent Function Modules, each with software-defined, multi-protocol bus:
- Digital GPIOs (General Purpose Input Output)
- Serial interfaces (UART, SPI, I2C)
- Analog input
- PWM outputs
- Multi-channel ADC with precision analog voltage reference
- Real-time Clock (RTC) for ultra low power hibernation modes
- Micro-USB for programming interface and power input
- UI: Piezo buzzer, 2 LED's, push button
- Multiple power and battery supply options
- Industrial temperature range: -40 to +85 °C
- Compact size: 3.58” x 2.16” x 0.55” (91mm x 55mm x 14mm)
Sensor Hub supports great flexibility in the power management schemes to allow adaptability to various use case applications. The power management design targets ultra low-power consumption optimizations enabling the system self-powering even from weak, energy-harvested, environmental sources.
The power can be supplied from multiple ports/connectors. The power sources have relaxed input voltage range requirements to allow supply from loosely regulated power sources, for example from voltage decaying energy sources, such as batteries or supercapacitors.