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Results tagged with power
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user 83
This tag is for questions regarding powering and/or power consumption of Arduino systems.
11
votes
Why is the regulator very hot?
If you power the Arduino with an external power supply the on board regulator has to dissipate the voltage difference between input and 5VDC at the total current you draw from the board. … It is better practice to power any load directly from the external power supply, taking the higher voltage into account. …
- 2,911
6
votes
Accepted
What will happen if I give my Arduino Uno more or less than 5 volts?
Check the datasheet for the IC's on the board and find the minimum power supply voltage the device works at. …
- 2,911
6
votes
Accepted
How to switch an external circuit with Arduino?
Do notice though that the two batteries / power supplies must be floating with respect to each other otherwise you're going to short them out. …
- 2,911