If any high-powered usb devices are required (large wireless adaptors, etc), two GPIO pin jumpers are required (or better yet, an old pc speaker connector as a pigtail works perfectly…) ScreenĪny VGA or HDMI screen will do, but the small 4×3 VGA “reverse camera” systems available on sites like amazon or ebay will do the trick without costing a fortune. You will also require a micro usb to normal usb cable, if you have owned an android phone, you likely have a spare sitting around. simply buy an automotive USB cell phone charger that is rated at higher than 1 amp, if you shop around you can get a decent one for around $10. Since this will be mounted in a car, you will need a linear or good quality switch mode 12 to 5v supply.įortunately, that’s very easy to find these days. The raspberry pi requires a stable 5 volt power supply with about 1 amp of capacity. I’ll leave that part up to your imagination… Power Supply There are accessories such as cases available as well, which you should consider when ordering, as you will likely want a way to mount the device. You will have to google around to find a local retailer for them. This updated board has less problematic usb ports, as well as mounting holes for making a custom case. When ordering, make sure you are recieving a ‘Rev-B’ board. This is a great little low powered credit-card sized computer. I’d reccommend at least beginner level unix/linux knowledge before attempting installation of the software at this time. Optimized throughput for fairly responsive displayĪlthough out-of-the-box configured specifically for the 1994-1995 LT1, it has been written from the ground up to be easily adapted to any 8192 baud GM ECM with fairly simple configuration files.Incredibly stable connection with very few dropped or corrupted packets.Very simple module api with no knowledge of the datastream necessary.Written in pure C, designed to be easy to modify or improve.Onboard GPIO header to extend functionality to actuators, etc.Supports nearly any USB device for almost endless added functionality.Offline datalog analysis, with automatic BLM and Knock analyzer.Automatic (optional) full-time datalogging.Configurable char-based graphical display of engine parameters.

The screen is optional, and it can also carry out ‘black-box’ unattended logging if desired.Īs the target device runs a fully loaded version of Debian GNU/Linux, it becomes not only a tuner’s best friend, but a fully capable car computer. The total price of all the necessary parts to build this system is generally under $100. Inspired by some of the low-cost datastream display technologies available for OBD-II systems, I’ve manged to peice together a system for OBD-I vehicles based on the low cost Raspberry Pi ARM computer and a low-cost ‘reverse camera’ screen.

Aldl cable driver