I have the book 'Practical Arduino' and I am very interested in building the Vehicle Telemetry Platform, however I find myself stuck without the schematics. I have looked through practicalarduino.com - This website is for sale! - practicalarduino Resources and Information. and various forums (including Arduino, OBDuino, freetronics) but I cannot find suitable schematics using the ELM327 and GPS as described in the book. I have got myself an EKLM327 chip and various other necessary components but I would appreciate the schematics so I can begin building the project.
Is there anyone who has built this project or has knowledge of this project who can help me?