Bit of a newb here, but been playing with my adruino uno for a whlie and am having quite a lot of fun with it.
I was aproached by a freind who wants me to help him build a system that will do the following:
1, read a digital input to calculate R.P.M
2, read a separate digital signal to calculate m.p.h..
3, Generate an odometer that can be programmed and displayed
4, transmit this information to a separate controller via CAN using the J1939 protocall.
1,2 and 3 would seem to be fairly easy to implement, however suggestions are welcome. But transmitting on the J1939 protocall is a seemingly quite daunting task for a casual user like me.
I have gathered quite a bit of info on the J1939 standard, and read the specs on the CAN chip used in the CAN sheild, it would seem to me that it could be possible to do it with this hardware.
Also, this project will NOT be used on a system where a J1939 bus is being used for crititcal data transfer, rather it will be to retrofit older vehicles to utilize the same hardware for moitoring that newer, Can enabled vehicles, are using.