Tom, That board could do so much more than GSM SMS. Power requirements are a little worrying, though. 3.2watts without modem. OVMS v1 uses about 0.48watts at idle, and 0.96watts worst case - but those are with the modem. Without the modem, probably 1/10th of that. I actually prefer the TS-7552 (same site). A much nicer enclosure, and 4 external USB ports. Also, lower power (can be reduced to 1.7watts). Interestingly, I don't see any option for 12v power via the DB9. I guess Scott modified it by internal patch cable. Regards, Mark. On 10 Jun, 2012, at 11:50 PM, Tom Saxton wrote:
on 6/10/12 4:36 AM, Mark Webb-Johnson wrote:
By the way, does anyone know what the Tattler uses? Any pictures? I'm guessing a development board with CAN, something like those boards on the olimex site.
The Tattler uses this board:
http://www.embeddedarm.com/products/board-detail.php?product=TS-7553
Scott was using an SD card to store the OS and the Tattler program, but those cards were getting corrupted. Losing power can corrupt the file system, for example.
After mine got completely wedged, Scott redid it to store everything in on-board flash. The OVMS board has been working so well I haven't been very motivated to swap back to the Tattler to try it out.
Tom
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