[OpenTRV-dev] Custom Arduino shield

[Bruno Girin]

True. But I was thinking about people who want to tinker on an existing 
Arduino and who are not very hardware savvy (like me): having the specs 
of a shield they could build or get built for tinkering could be useful.

Bruno

On Tue, 9 Apr, 2013 at 5:53 PM, Stuart Poulton <EMAIL ADDRESS HIDDEN> 
wrote:
> Hi,
> 
> Actually for the cost of producing a shield, you can include the 
> space for the ATMEGA328P. An arduino is an expensive thing to 
> dedicate to a task.
> 
> Stuart
> 
> 
> On 8 Apr 2013, at 08:39, Damon Hart-Davis wrote:
> 
>>  Hi,
>>  
>>  Yes, I think that that's a decent goal, so that of nothing else 
>> people can run all or part of their systems actually on an 
>> unmodified Arduino for example.  The biggest issue there is likely 
>> to be level shifting for (for example) the RFM23 that would not 
>> enjoy 5V.
>>  
>>  Rgds
>>  
>>  Damon
>>  
>>  
>>  On 7 Apr 2013, at 22:40, Bruno Girin wrote:
>>  
>>>  Hi all,
>>>  
>>>  The guy from http://openhomeautomation.net/ has started a series 
>>> of videos on how to design your own Arduino shield, taking a wather 
>>> shield as an example: http://www.youtube.com/watch?v=_NjZxK3acMs. 
>>> So maybe we could consider one of those as part of the Arduino 
>>> stack? And even if we end up with more compact designs, thinking of 
>>> it from the point of view of designing a shield would help gel what 
>>> pins to use for what. In particular, one of the good points he has 
>>> in the video is that you'd want a custom shield to be compatible 
>>> with other standard shields such as the Ethernet or the Wi-Fi one 
>>> so that they can work together.
>>>  
>>>  Cheers,
>>>  
>>>  Bruno
>>>  
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