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What kind of switching circuit do I use with Arduino Answered

I have a 3V battery pack connecting to a single circuit.  I want to replicate this circuit 10+ times using the same battery pack as a source.  I need to apply some sort of 'switch' to control the follow of current amongst the circuits, hence turn on/off various circuits as needed.  For instance, I have 10+ servo motor circuits.  I want to connect the single battery to each circuit and control which circuit gets the current from the battery.  I have an arduino but I don't know how to interface it with what I am trying to achieve.  Any suggestions?

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sheonbanks
sheonbanks

5 years ago

Thank you for your reply, however, I used servo as an example. I am more interested in switching technique for using one battery, connecting and controlling current flow to the multiple circuits from the single battery source.

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caitlinsdad
caitlinsdad

Reply 5 years ago

I guess it would help to determine what power requirements or what those 10 individual circuits are. The arduino can "switch" branches of a circuit on and off like lighting up LEDs. Bigger loads like motors will require some kind of transistor or relay to be triggered by the arduino. And then you need to consider if the battery pack can handle supplying multiple circuits that are on or you only need to supply power to one single circuit.

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caitlinsdad
caitlinsdad

5 years ago

You should use a servo shield for your arduino like this http://www.adafruit.com/product/1411

You should learn more about how to control multiple servos and rethink your design of how to power and control them. Good luck.