Some servos will do that when power is applied to them - mostly it’s analog servos I’ve noticed have that behavior

I was wondering if there is anyway I could stop power going to outputs when I first put power on the ez-bv4,because all my servos turn to the left 45 degrees when I do ?

It's the servos - not the EZ-B. Soon as the signal line on some analog servos is held high or low, they begin measuring the pwm and causes it to move on the 20ms timeout. You can "try" to power the ez-b first and THEN power the servos a second later and see if the servos have a moment to sort them selves out. And keep the signal connected to the EZB the whole time

Thanks for that looks like I will have to put a switch between inmoov and ez-b .will try that cheers walter

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wfairall - you might want to try it first because I don't know if it'll work. The analog servos that I had experience with will ALWAYS twitch when powered on - no matter what the signal wire is connected to (or not connected to)

So try it first with one servo before moving your system over to a switch

Will try that tommorrow and let you know how I get on thanks

hi yes just put a switch to neg on servo,powered up ez_bv4 then connected to wifi,and program ,then switched on all fine  thanks walter,also could you tell me if I can update software for my ez_bv4 ,I have tried with no luck,its about 4yrs old ,not sure which version it is cheers again