I have a new Uno and if I measure with a multimeter the +5 voltage it is about 4.23. The 3.3 is 3.3. I put a simple voltage divider circuit (2000ohm + 222 Ohm) circuit across +5V and ground and measured the same voltage drop across bith resistors in series. The input voltage is 4xAA batteries that…

Uno +5V is low is this expected?

Topic		Replies	Views
Simple Arduino Uno Voltage Question (5V?) IDE 1.x	7	2242	May 5, 2021
5V input General Electronics	10	1749	May 6, 2021
Output Voltages differ for different power supplies to the arduino. IDE 1.x	7	2078	May 5, 2021
[Urgent] My Arduino UNO 5v pin cannot provide 5volts IDE 1.x	2	987	May 5, 2021
Powering Uno from regulated +5VDC Safe/Possible? IDE 1.x	21	6432	May 5, 2021