Any thoughts on how I could tell the adriuno how fast I am going with my car?
tobygross:
Any thoughts on how I could tell the adriuno how fast I am going with my car?
Sooo... Do you want to use the arduino to calculate your speed? Or feed your speed into the arduino as data?
Essentially, both goals can be achieved the same way hardware wise...
Am not really sure if there is a sensor that can measure a cars speed..
zaxarias:
Am not really sure if there is a sensor that can measure a cars speed..
A Hall effect sensor could do it. It would involve hardware installed into the vehicle...
tobygross:
Any thoughts on how I could tell the adriuno how fast I am going with my car?
Read speed data from a GPS module connected to your Arduino.
Count the number of trees per minute that you pass.
most cars have a OBD2 and you can tie into that.
get a reading from the computer that tells the speedometer what speed the car thinks it is traveling.
car speed is calculated from tire diameter that is controlled by tire pressure and vehicle weight along with tire diameter.
interface with a GPS to get another source of vehicle speed.
http://arduinodev.com/hardware/obd-kit/
Speed/Time
I like the gps idea , I am new to adriuno what type of programming language does it use?
tobygross:
I like the gps idea , I am new to adriuno what type of programming language does it use?
"Can I program the Arduino board in C?
In fact, you already are; the Arduino language is merely a set of C/C++ functions that can be called from your code. Your sketch undergoes minor changes (e.g. automatic generation of function prototypes) and then is passed directly to a C/C++ compiler (avr-g++). All standard C and C++ constructs supported by avr-g++ should work in Arduino. For more details, see the page on the Arduino build process. "
Is it possible to program in basic
Any thoughts on how I could tell the adriuno how fast I am going with my car?
You could attach a pot to the arduino, calibrate some speed positions, then watch the speedometer and adjust the pot appropriately.
This has to be automated, gps is one option that I like now I have to figure out how to program the adriuno to take speed digest etc.
tobygross:
Is it possible to program in basic
Not on the Arduino. There are some that use basic, but they're not very good.
Basic is a horrible language, and it's not really easier than C - and it teaches bad programming habits.
Interfacing with ODB is probably the way to go, regardless - that'll always respond faster than GPS can.
ODB? Now aim lost
tobygross:
ODB? Now aim lost
I think what was ment was OBD, the car on board diagnostics. Not sure if there is a current speed available in the OBD functions.
I am actually want to put my project in a semi truck, gps would probably be the fastest and easiest, has anybody every tied into the elm system?
check the link in response #6
available information :
SPEED – Vehicle speed (km/h)
RUNTIME – Engine running time (second)
DISTANCE – Vehicle running distance (km)
I figure speed would be what you are after ?
.....ODB.....
...now aim lost....
...I am actually want to .....
...what was ment was OBD....
youise guise using my speal cheacker again ?
Hi,
have you tried googling arduino gps speedometer
Have you tried the forum search at the top righthand of this page?
Tom..... 