Hey guys, I have an arduino Nano board and I power it via USB/computer. When I measure the 5V output pin using a multimeter, it reads 4.74 volts instead of 5.0 volts... Can anyone explain? I also measured 3.3volt output pin, and it showed 3.34 (which is much better than the 4.74 volts).

5 volt output is actually 4.75 volts

system November 5, 2010, 2:18pm 7

Consider using a 7805 Voltage Regulator.

Topic		Replies	Views
nano only putting out 4.78V Troubleshooting	4	1424	May 6, 2021
Powering Nano from usb AND 9V wall wart. Usb only 4.7V IDE 1.x	6	3093	May 5, 2021
Problem with 5v pin in arduino nano IDE 1.x	9	10291	May 5, 2021
Getting a 5V supply from an Arduino Nano? General Electronics	4	2456	May 6, 2021
Problem on arduino Troubleshooting	6	1786	May 6, 2021