hi,
I built a rocket flight computer that uses lm7805cv to regulate power for mpu6050 servo 3xled's.
the lm7805cv is rated to supply 1A using my multimeter it tested to supply only .19A and the 9v battery gives .78A. As soon as the Arduino nano starts to turn a servo every thing goes dead.(it worked if on Arduino nano regulate but then the nano over heated
any help will be appreciated
If you using PP9 battery,
It's not a regulator issue, it's a battery issue.
@b707 it's a 6f22 9v battery
I made an edit to the topic
please show your schematic
Is a regulator goes hot when run a servo?
@b707 The regulator stays cool
I'm creating an schematic
I just found out that 6f22 and pp9 are the same type battery.
This battery is not suited for servos, it capacity is very limited (200- 500 maH) and nominal long-term current is 0.01 -0.05 A only
For example, the datsheet of EVEREADY 6F22
@b707 it worked when the nano regulated the power from same battery
so the post #5 - without the schematic it's impossible to say more
Could you post more information about this magic battery of yours?
I see a mistake in your connections
VIN arduino pin is input for internal Nano regulator, it accept voltage above 7v only.
If you use external 5v regulator, you shouldn't connect it to VIn , use 5v pin instead
can that change the AMP consumption?
It is not a consumption question, your scheme is completely unworkable
Why?
why?
because 5v on VIN pin is not enough for stable operation of the nano
I moved it to 5v
