Thanks for your reply Vitaliy Vitaliy wrote: > Dave Wheeler wrote: > >> I am starting development of a hobby project which will read a vehicle >> speed and do some stuff (Alarms for example) the project will eventually >> be >> PIC based but to get an understanding of 'real' things going on I am >> trying to find a Scantool to help. There are lots of ELM327 clones >> available from China but >> my research has helped me in deciding to keep clear of them. Other tools >> available in the UK vary in price (dramatically) and although my time >> for this application is free, I still don't want to waste a lot of time >> with inferior hardware. >> > > Good idea. The problem with Chinese clones is not in that they don't ever > work; the problem is that you never know what you're going to get. Some > units work perfectly, some work marginally, some work on one protocol but > not the others, some don't bother powering up and some power up and catch > fire. I'm not exaggerating: > > http://forums.fluxmedia.net/obd-ii-auto-diagnostics/6982-dealexteme-obd-usb-thoughts.html#post51292 > I had seen similar comments on other forums, I can't see the point in spending more time getting the tools to work than developing my 'gadget' > > >> The ELM327 (V1.3a) based tools seem to be entry level and only >> upgradable by chip change, there >> seems to be some 'compatible' tools that are flash based and easy to >> upgrade (generally free). >> > > The only devices with a bootloader that I'm aware of, are OBDPros and > OBDLink (www.obdlink.com). > > In my recent post, I alluded to the fact that ScanTool.net LLC is > considering bringing a claim against OBDPros' founder, Jay Shroff. While the > outcome of such situations is never certain, I would definitely consider > this fact when choosing a vendor. > I did see this post and have looked at the scantools on their site with your post in mind :-) > > >> The Elmscan5 seems like a good contender but the UK prices from >> distributors is high compared to direct, obviously the direct route may >> attract some import duty and the >> dreaded VAT. >> > > My opinion is necessarily subjective, but I would get the OBDLink instead of > the ElmScan 5. One reason is upgradeability, and the fact that any real > problems you encounter will be fixed much quicker than with an ELM327-based > option. We've been selling ELM327 products for over seven years, and I'm > sorry to say that Elm Electronics has been very slow in implementing > customer requested changes, and fixing bugs. > > The other reason is cost: Elm Electronics is not at all flexible when it > comes to pricing. > As I'm only interested in CAN support it looks like an 'out of the box' solution would be the OBDLink CI which on your site is a similar cost to the Elmscan 5, Its a shame there is such a cost difference between the OBDLink and the OBDLink CI as 'Murphys Law' states that once I start 'playing' I will wish I had other OBD protocols available :-) > > >> Any suggestions, recommendation's or 'keep well clear of's' will be >> greatly received >> > > Take a look at the microOBD module: > > http://www.scantool.net/scantool/downloads/44/microOBD-ProductBrief.pdf > > It's based on the same firmware as OBDLink, and includes all necessary > drivers. We also have a nice development board that it plugs into, we plan > to post photos and descriptions of both on our website sometime next week. > Looks nice but by the time I add connectors, cables, RS232 level converter I guess the cost would be about the same as the OBDLink CI > Another option is to incorporate the STN100x chip into your device. The > downside is that it can sometimes take a while to work out the bugs in the > (deceivingly simple) driver circuitry. > > Vitaliy > Going well OT now but do you ship to UK end users ? If so, any idea of shipping costs ? Thanks Again, Dave > > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.422 / Virus Database: 270.14.21/2445 - Release Date: 10/19/09 06:40:00 > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist