Hi Everyone,
This is my first post here - quick intro - I run a company that specialises in retuning factory ECU's in performance vehicles. I'm a programmer day to day. I've done a lot of disassembly (SH4) on the Mitsubishi Evolution ECU. Not much hardware...
This post will probably have a lot of various questions posted over time as I seek to extend my hardware knowledge and experience. My software knowledge is pretty good and pays the bills, but the hardware side of things gets me excited.
I am in the early stages of designing a project to use in a race car that datalogs from the OBD port and various sensors, and records video/audio from a camera / microphone.
My first question is regarding storage of the sensor/OBD data (simple text) and video/audio data (not so simple binary)... I am not sure what is physically possible out of the below, but I see these as my initial options:
1. Flash (SD / MMC)
- my concerns are regarding write speed for video, and ability to interface with microcontroller
2. Hard Disk (notebook)
- concerns are vibration in race car, how to power (from device through vehicle 12v?)
3. USB Stick
- concerns are interfacing with microcontroller and write speeds for video.
If anyone has any suggestions or comments, I'd love to hear them. I'd like to keep this thread as a bit of a diary of the build of the project so that it may benefit everyone in some way.
Thanks very much,
Brendan