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Sat, 09 May 2009
SRV-1/SVS navigation module provides GPS, compass, 3-axis tilt and 8-channel 12-bit analog input
We just received the prototypes of a new sensor board we developed for outdoor navigation. This navigation module includes a Honeywell HMC6352 compass, ST LISLV02DQ 3-axis tilt sensor, Analog Devices AD7998 8-channel A/D, and interface to GPS (we're using the Locosys LS20031). Interfaces to the compass, tilt sensor and A/D are via I2C bus, and interface to the GPS is via UART. Everything runs at 3.3V. The board measures 31mm x 38mm (1.25" x 1.5"), and weighs around 5gm without GPS (18gm with GPS).
The 8-channel A/D enables interface to other navigations sensors such as gyros, barometric pressure, thermopiles, infrared range sensors, etc, supporting the development of a complete IMU solution. The prototype module, as seen above with the Locosys GPS, has an unfinished appearance without solder mask or silk screen, but these features will be present in the production version. We will likely ship the board without headers, but the prototype is functioning properly and is already supported in SRV-1/SVS firmware.
The schematic is found here.. Component placement is shown below:
The navigation module is expected to be priced at $150 including Locosys LS20031 5Hz GPS, and we should have production quantities available in 30 days. If interested, please send an email to support@surveyor.com
Posted Sat, 09 May 2009 12:00 | HTML Link | see additional stories ...