Hi there,
I am working on a really big project and Im using 8 different Arduino nanos. I want to power them all with a lipo battery through the vin and ground external power supply. I have had a hard time finding the right requirements. What is the amps and volts that will have the arduino working and controlling sensors and actuators for a while? From there I think I can figure out what I need for all 8.
Thanks.
Does this mean you don't have a DMM or know how to measure the current ?
No I dont but Im sure other do who have done this before and have measurements. Does anyone have data.
thank you
Again I dont have DMM so if i knew how to use one that would not help me. I stated above that I have done some research and I have found vague answers. I want to do it right for my circuits. If you can not give any useful information then stop wasting your time replying.
Helpful info:
Google Nano current / power dissipation.
Divide the power in Watts by the supply volatage.
P= I*V => I =P/V
I is current (measured in Amps, in case you didn't know)
Buy a DMM.
thanks be nicer next time
ok but you have the cart before the horse.
step 1 is buy a DMM.
step 2 is buy Nanos
I would just point out that the Nano is a 5 volt device, and you would need at least 6V on the Vin pin to allow the voltage regulator to produce 5V. But a single LIPO when fully charged is only 4.2V. So that's not enough. Of course you could stack two LIPOs, but then recharging becomes more complicated.
A 3.3V 8MHz Pro Mini would be a good match for a single LIPO, but then you would have to make sure your sensors and actuators will work at 3.3V.
It might be best to get one Arduino working with a battery before tackling eight. Powering with batteries, and recharging them properly, can be a challenge.
It might be best to get one Arduino working with a battery before tackling eight. Powering with batteries, and recharging them properly, can be a challenge.
Good luck with that without a DMM...