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Re: [LUG] Raspberry Pi Ventilator

 

On 14/04/20 09:46, Eion MacDonald wrote:
> On 13/04/2020 21:08, Gordon Henderson wrote:
>> On Mon, 13 Apr 2020, Roland Tarver via list wrote:
>>
>>> Hi Folks,
>>>
>>> BBC News - Coronavirus: Raspberry Pi-powered ventilator to be tested in
>>> Colombia
>>>
>>> https://www.bbc.co.uk/news/technology-52251286
>>>
>>> Thought this was pretty cool. If it can be made to work.
>> Bloody hell, I hope not.
>>
>> This is the job for a proper embedded microcotroller designed for the
>> task. PIC or AVR style not some educational computer running a
>> multi-user, multi-tasking operating system vulnerable to 1000 hacks )-:
>>
>> (And Yes, I have experience of this)
>>
>> Gordon
>>
> Can the OS on a R Pi be 'locked' to a single use and hardened?
> E.G. If on a machine not connected to internet, is this not just an
> 'air-gaped' computer?
>
> Similar to systems used in nuclear industry in UK , where very 'usual'
> PCs are air gapped inside a Faraday cage.
> (Disclosure: experience of using such machines.)
>
The 'best of a bad bunch' would probably be to put an RTOS on the bare
metal, and ditch any networking unless really necessary...

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