Page 1 of 1

EZsbc gps speedometer

PostPosted: Wed Feb 04, 2015 9:22 am
by speedracer
My first real 'project' using the EZsbc1 has been to construct a speedometer for my race car. I race at Bonneville on the salt flats. The course is five miles long and only sort of smooth. As you reach the end of the course (at over 200 mph!), things are shaking and bouncing and all your concentration is focused on keeping the car going straight while you reach for the parachute release. I have tried to note the needle position on the tachometer as I go through the cones but have not had much success, what with everything else going on. So I decided I need a speedometer with a digital display (see my previous post).

It turned out to be dead-simple. Four wires plus power! I2C to the display, TTL-serial to the GPS module. I've only built a prototype so far but it works just fine riding on the dash of my Durango.

I've written it up and posted it on my website, if anyone is interested in hooking up a simple GPS device:

Re: EZsbc gps speedometer

PostPosted: Mon Feb 09, 2015 1:34 am
by Andries Pretorius
Thank you for an interesting project speedracer!

Best regards