I'm still working out the logistics of my CarPC, but I've finally gotten the amp, speakers, and head unit installed, so I'm off to a start, and all I need now is the chassis to be obtained and some logistical questions to be answered.
Ideally, I want the CarPC to be in standby unless a low-battery condition occurs, at which point I want it to be shut off completely.
Reading up on the M1-ATX (and the Opus 120 that would be included if I decide to sell the M1-ATX and buy the Opus enclosure with PSU), it looks like they simulate a power button press when the engine goes off for a specified amount of time, so configuring windows to enter standby when power button is pressed looks like an easy way to get the first part accomplished.
But if a low-battery condition occurs, do the PSUs listed above do a forced shutdown (hold power button for x seconds), or do they just do a single power button press, which would only toggle the standby state?
If it's the latter, a workaround would be to have the carPC entire/exit standby based on the power state of the headunit. Then on/off states could be left to the power supply.
The only problem with that solution is I don't know of any way to trigger standby based on the state of the head unit. The only method i could think of is to somehow link the computer to the amplifier remote turn-on lead, but I'm unsure of how I could get said lead to trigger a standby state.
I imagine several people before me have had this setup in mind, and have figured it out, the only question is - What's my best option?
30Gb 2.5" HDD
Bluetooth, 802.11g, GPS
Silverstone USB DAC
NLited XP with Road Runner and MapMonkey