Topic: Automotive / Rollingstock Chumby - Seeking Duane/bunnie help
Bought a chumby last year with the insiders deal but haven't had much time to play with it other than to use it as intended (aka glorified news/weather display and alarm clock).
Having cracked the touch screen on the GP2X i bought for hacking brings me back to the Chumby
Since I'm at a hair salon with no access to the chumby, I have a few questions on how I could adapt my chumby to use as a speedometer display on
a)A Car
b)A Train (yes a train)
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The car speed signals would be accessible via CAN bus (Mazda style).
The train speed signals would be either of 4-20mA speed signal or Ethernet multicast messages
The concept is to pull apart a chumby (which i did last night), remove both the wifi riser and the daughterboard, add a custom daughterboard with CAN/analog/wired ethernet hardware.
The daughter card would most likely be based on a LPC2378 ARM7 for its dual CAN + USB + Ethernet.
The questions for Duane/bunnie are then :-
1)What is the easiest way to interface to the Chumby mainboard? SPI? USB?
2)When is firmware 1.6 due to be released to fix the wired ethernet )))
3)Would removing the daughterboard and thus associated accelerometer etc impact chumby running?
4)Was the linux kernel for the chumby compiled with multicast enabled?
Sorry for the flood of questions, just bored at the salon thinking about the chumby.