I'm new to Arduino and have a project of unknown complexity and looking for some advice.
I need to build an Arduino based device that simulates J1939. I know that part has been done.
J1939 is like OBD2 but for HD vehicles like semi trucks
The unknown region of my project involves 2 gateways:
1 that listens for the pulses from my engines tachometer sensor
1 that listens for pulses from the vehicle speed sensor.
I know that folks have built Arduino tachometer units and speedometer units so in theory it shouldn't be too hard, right?
I will need to program engine hours into the Arduino as well as the odometer reading and have them both count up as the engine runs and the vehicle is in motion. All of this gets transmitted over J1939 to an external device that reads RPMs, speed and distance.
Any advice on where to start? To me it sounds pretty simple but I've never done a lick of programming and am looking for any advice.