Geeknight - I2C GPS Interface Board



	I2C GPS Interface Board Description The goal of the Geeknight I2C/GPS Interface Board was to make GPS navigation as friendly as possible and make it accessible to higher level robotic frameworks like PICAXE® , Basic Stamp®, Lego Mindstorms® and other microprocessors which need to offload intensive processing like GPS. What sets this board apart is the user's ability to pass in a destination Lat/Long coordinate and have the module send back a destination bearing and/or distance. This greatly simplifies the handling of large floating point numbers and trig functions needing precision to 6 decimal places or more. Allows the user to input a destination co-ordinate; the unit will calculate the bearing and distance away. Provides an I2C interface to the USGlobalSat GPS engine Handles the tricky high precision, floating point math needed for bearing and distance calculations Has a standard header pin interface instead of awkward surface mount connectors like the SM06B-SRSS-TB(LF)(SN) Takes care of the voltage level shifting needed by the 3.3 volt TTL serial input/output. Offloads the constant serial communications processing needed for the data coming out of the GPS engine. Parses and interprets the variable length NMEA messages to extract the useful information. Frees up your microprocessor’s serial communications pin to do other fun things like send debug messages to your PC terminal. Enables the more accurate WAAS by default For GPS navigation, the interface module makes an excellent companion to the Devantech® CMPS03 I2C-based electronic compass. You can find out more about this product at: http://www.acroname.com/robotics/parts/R117-COMPASS.html Purchase Please visit our on-line store to purchase one of these dealys. We accept Paypal (which also accepts Visa and Mastercard) User Manual Here's the latest copy of our user maual. The user manual describes the basics of I2C and GPS to get you up and running. It includes circuit examples and a hookup how-to. Example Code Hi-Tech(R) PICC hi-tech_c_sample.c hi-tech_c_sample.hex (for pic 16f877a) PICAXE(R) i2c_gps_example.bas Lego Mindstorms(R) coming soon Support In addition to the user manual and sample code, there is an on-line forum to support this product. We do our best to answer everyone's questions.