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Originally Posted by Andrew Blair
I'm really sorry if this is a repeat thread, but I can't find anything. I'm wondering if you can do it off the new breaker panel.
How can you give the voltage draw of a motor to the brain?
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Let me see if I'm following your question.
You are trying to read the voltage applied to a motor, correct?
Or, are you looking for the current being drawn by a motor?
The voltage measurement at the breaker panel will only provide the main battery voltage. Remember, there is a speed controller between the breaker panel and the motor. So, to read the voltage applied to the motor, it would have to be done at the output side of the speed controller. Be careful with that, if I'm not mistaken, the RC analog inputs can only measure 0 to +5vdc. On top of that, to measure motor voltage correctly means the motors need to be measured under load. Therefore, motion will be involved, watch your extra body parts
Measuring current is another matter. I don't believe we have an easy way to do that with the tools provided by FIRST.
Please speak up if I'm off base on any of this.