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Topic: 12 volt shield (Read 1 time) previous topic - next topic

stone

Hi,

I wonder if there is a thing such as a "12 volt shield" which converts all outputs/inputs of Arduino Mega to 12 volts? I need to connect several 12 volt sensors to an Arduino Mega. 12 volt output (low current) is also needed. I would preffer to buy a readymade shield.

robtillaart


have you checked - http://shieldlist.org/ - many shields there :)
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

stone

I checked http://shieldlist.org/ and also Googled for a 12 volt shield. I haven't found a good match.

robtillaart


for (digital) input you could make simple voltage dividers  - http://www.bowdenshobbycircuits.info/r2.htm

for output you can use a relay shield? or is that too slow? - http://shieldlist.org/seeedstudio/relay

maybe this helps more :)
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

Grumpy_Mike

I know of no such ready built shield for this sort of thing. I doubt if you will find one, it is rather an odd request.

stone

Thanks. The relay shield only has four outputs. 

This shield does not adress the input problem. A resistor on the input pins would probably do (optocouplers would be better), but as I mentioned, I would like to purchase a readymade board which plugs into the Arduino Mega.

It would be perfect if there was a board which converted all Arduino Mega pins to 10, 12 or 24 volts (depending on the voltage of the external source).






robtillaart

Thinking out loud,

Cars use 12Volt for all kind of things, and they sometimes use the CAN-bus  (Car Area Network). So an Arduino shield with CANbus and some CAR-electronics?

- http://shieldlist.org/sparkfun/can-bus 
- http://www.squarell.com/Products/Components/component/27
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

robtillaart

some recent canbus activity...
- http://arduino.cc/forum/index.php/topic,52052.0.html
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

stone

Thanks,

Decided to build my own board using voltage dividers at the input and transistors for the output. 12/24 volt output/input is quite common, so eventually somebody will manufacture a board...


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