if I made a mistake, please let me know.
Why are you running 5-6V servos off 9V?
Hi,You need better power for sure...The servos need 5 to 6 volts at perhaps 1 to 2 amps. So separate external power supply is needed. 5V to servos, external power supply ground connected to Arduino ground.For the arduino, separate power. Wall wart of equivalent, like 9V 1A to external power.the 9V alkaline won't work.You MAY be able to use 4 AA NiMH batteries to run both Arduino 5V and the servos.
As you have discovered, 9V batteries are useless for motors, especially servos, which require 5 to 6V.Servos require a surprising amount of power. A good rule of thumb is 1 Ampere per servo, so a 5 to 6V, 4 Ampere power supply will handle 1 to 4 servos of most (but not all) types.A 5xNiMH AA battery pack will handle 2 servos. Don't forget to connect the grounds.
You're only supposed to ask a question once afaik.My question is still the same as in your other thread: