Posted 30 April 2012 - 03:07 PM
Joystick + Board
My area is in software programming and thus I have no idea how many 9V batteries I need to power up these components together. Can somebody help me on this?
I would also appreciate if you tell me the method/formula used and what to look for.
Posted 30 April 2012 - 04:06 PM
Posted 01 May 2012 - 06:54 AM
Posted 01 May 2012 - 07:49 AM
My guess is between 100 and 150 mA for the whole circuit. However, if you have a multimeter, the easiest way is measuring the (average) current.
Now, let's have a look at the capacity of some kind of 9V battery:
For instance, an alkaline battery yields 565mAh, which stands for "565mA for hour". In other words that battery says "I am able to give you a continuous current of 565mA for one hour long, then I'll be over". But that's equivalent to "I am able to give you a continuous current of 56.5mA for ten hours long". So away...
Note that is mostly theoretical. Batteries are pretty complex. For instance, a battery can give you a peak of high current (e.g. 5 Amps), but immediately after there's an "hole" of energy. That's because most of the available charge is pulled out, and you must give time to the chemical reaction to restore a balance.
Okay, just for your info...
Finally...what do you mean as "total voltage"? Is it not 9V as the battery?
- xikky likes this
Posted 01 May 2012 - 08:00 AM
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