However using four NiMH rechargeables in a battery holder and powering direct to the 5 V line on the Pro Mini avoids using the problematic voltage regulator and is a vastly more appropriate and reliable option.
However using four NiMH rechargeables in a battery holder and powering direct to the 5 V line on the Pro Mini avoids using the problematic voltage regulator and is a vastly more appropriate and reliable option.