I am working on a college project. for that, I have to use Arduino. Basically, my project is automatic stabilization, to do so I am using an Arduino nano, an MPU6050 sensor, and four servo motors ( two-axis, two servos for each axis). now, what I should use to power up the whole thing? what kind of battery do I need to use? and how I can power them all?
Power the servos separately, using a servo power supply that supplies 4.8-6V and at least 1 Ampere per servo (for small servos), 3A/servo for large ones.
A 4xAA pack will power 1 or 2 small servos, if the cells are fresh.
Don't forget to connect all the grounds.
should i connect all the grounds to the arduino too?
ALL grounds must be connected.
ahhhh, i tried that, i used another 9v battery to connect the servos and i conneced a voltage regulator to 5v for servo, then i connected servo Vin and ground to the battery only and then i connected the signal wire to the arduino board. and i burnt my arduino nano. now what should i do? should i also connect ground from battery to the arduino? i mean servo ground will be connected to battery and aruino both? or only to battery ground what i already tried or to arduino ground? please clear a little i am just newbie with arduino.
9V batteries are for smoke alarms and can't provide enough current for even one servo or motor. A fresh 9V battery will power an Arduino for only a few minutes.
Connecting ALL the grounds means exactly what it says. Connect Arduino ground to sensor ground, servo ground, power supply and battery ground (negative terminal). See this Arduino tutorial: Common ground and why you need one
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