DIY car diagnostics
The Linux Journal online magazine has an excellent article briefly covering using free or cheap software, and relatively cheap or open hardware, to diagnose car fault codes or simply inspect your vehicle's status using its OBD-II port.
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Build your own car software
According to Slashdot you may soon be able to develop software for your Ford or Vauxhall/Opel car. This could be exciting news but as yet it is not known what constraints will be in place or whether you are permitted to independently develop software for your own vehicle.
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