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i believe that there is a group of people that want just the quick and dirty answer to the problem from someone who has 40+ years of experience.
Hello,
I too was a computer programmer, but have recently attained a degree in automotive technology. In my opinion, I believe the easiest way to implement your idea would be to create an interface with the DLC. This is a common approach that many 3rd party companies such as On-Star, Progressive, and others gain real-time information about the vehicle by accessing the network communication bus. Although network architecture and communication protocol will vary between makes and models, they all adhere to the OBDII ISO standards that has been in place since 1996.
Do I need a specific hardware to send the command to the car ?
Not necessarily, although it is possible of course to create a middle ware application that can translate a common software language into the manufacturer’s network protocol, which in many cases will be “Controller Area Netowrk” (CAN) and it variants (Fast CAN & Slow CAN).
You will need intimate knowledge of the following:
- The 16-PIN Data Link Connector – This is your gateway to sending and receiving serialized data from the various vehicle modules.
- Controller Area Network (CAN) – Essentially a series of 1’s and 0’s at specified voltages, arranged in specialized ‘packets’. Most commonly used in modern GM vehicles. http://en.wikipedia.org/wiki/Vehicle_bus
I believe there are existing android applications that already tie into the network communication bus via the DLC that relay vehicle information to the individuals smart phone. Perhaps looking at existing technology will provide you some insight on how to move forward with your project.
Hello,
I too was a computer programmer, but have recently attained a degree in automotive technology. In my opinion, I believe the easiest way to implement your idea would be to create an interface with the DLC. This is a common approach that many 3rd party companies such as On-Star, Progressive, and others gain real-time information about the vehicle by accessing the network communication bus. Although network architecture and communication protocol will vary between makes and models, they all adhere to the OBDII ISO standards that has been in place since 1996.
Do I need a specific hardware to send the command to the car ?
Not necessarily, although it is possible of course to create a middle ware application that can translate a common software language into the manufacturer’s network protocol, which in many cases will be “Controller Area Netowrk” (CAN) and it variants (Fast CAN & Slow CAN).
You will need intimate knowledge of the following:
- The 16-PIN Data Link Connector – This is your gateway to sending and receiving serialized data from the various vehicle modules.
- Controller Area Network (CAN) – Essentially a series of 1’s and 0’s at specified voltages, arranged in specialized ‘packets’. Most commonly used in modern GM vehicles. http://en.wikipedia.org/wiki/Vehicle_bus
I believe there are existing android applications that already tie into the network communication bus via the DLC that relay vehicle information to the individuals smart phone. Perhaps looking at existing technology will provide you some insight on how to move forward with your project.
I haven’t had a lot of time to work on this… it is kinda low on the list of priorities in the shop. I think I’ll get some time to get it going this week though.
Here is probably the worst wiring diagram I have ever seen in my life:
I think I made better progress just based on my own observations:
Kids, stay in school and pay attention, so when you design these electrical schematics they will hopefully offer some sort of helpful information.
I haven’t had a lot of time to work on this… it is kinda low on the list of priorities in the shop. I think I’ll get some time to get it going this week though.
Here is probably the worst wiring diagram I have ever seen in my life:
I think I made better progress just based on my own observations:
Kids, stay in school and pay attention, so when you design these electrical schematics they will hopefully offer some sort of helpful information.
