Single chip processor as the arduino nano, originally with the 12 v power supply to power a vin, now want to reduce the vin to 8 v series resistance, probably need to how much resistance?

CodePudding user response:

Partial pressure resistance, 5 k, 10 k,
In addition, unless your load current is very low, such as 300 ma
Use the following, and for short periods of time, otherwise, really do not recommend using this method,
Calorific value is very big, very easy problems,