Multi-Sensor Data Acquisition Unit (MSDAU)
The Multi-Sensor Data Acquisition Unit (MSDAU) hardware consists of a waterproof enclosure containing a Raspberry Pi computer and a collection of sensors on a second board mounted on top of the Pi. The sensor board and its specifications are described below. Power over Ethernet (PoE) and bi-directional communications are provided via an external waterproof RJ45 connector. Two other waterproof connectors provide for two external USB interfaces. An SMA RF antenna connector provides signal for the internal Software-Defined Radio (RDR) that generates RF spectrum data.
The MSDAU is housed in a plastic enclosure, sealed when closed to IP66 and NEMA 1, 2, 4 and 4x specifications.
External size: 8.27in (210mm) long by 6. in (160mm) wide by 3.94in (100mm) deep
Gore vent for internal/external pressure equalization without condensation
Waterproof connectors for Ethernet, USB (2) and SMA for RF antenna
Pi Sense Hat with 15 sensors, 8x8 multi-color display and joystick
Internal GPS receiver with SiRF Star IV GPS Chipset
Internal SDR receiver with frequency range of 25MHz to 1750MHz
Clear cover for display and indicator visibility while sealed
Temperature range: 0 to 50 degrees C internal; external could be lower
The Sense HAT has an 8×8 RGB LED matrix, a five-button joystick and includes the following sensors: