Howmany Voltage Regulator Is Needed

Looks nice and neat. Good work.

@dave

almost reddy to put the frame on .:D i made a case for the small regulator .

https://www.youtube.com/watch?v=aY5q-ctl_Io

casestepdown.stlcasestepdownLID.stl

i have 4.62 volts on the big regulator . but thats to low for the ezbv and iotiny . the gifs a low warning signal . so do i use a smal regulator to pull up the volts , to 6 volts ?

To increase voltage you need a DC to DC step up or boost converter.  Consists of a transistor coil and a capacitor.  Something like this but if you Google boost converter (or maybe Amazon) you should find something  I typically buy stuff like this on AliExpress

hu nink

i have those . i think the iotiny needs atleast 6 volts .

IoTiny Voltage input (Vin) range: Minimum: 4.5 volts Maximum: 16 Volts

IoTiny Datasheet: https://www.ez-robot.com/uploads/1/2/6/9/126941806/iotinydatasheet-636966456964424276_1.pdf

@Nomad, That reading you're getting on that new big converter does not seem right. If you bought one that rated at 5vdc then it should put out at least 5vdc after it's adjusted properly. Are you sure that the converter you have is rated for 5 volts and not something lower like 3.5V?

Are you taking that reading with servos or other devices or lights running? If so that would explain a lower voltage reading. Voltage will drop if you have motors that draw a lot of load like servos. Still, you should be able to adjust the converter to above 5vdc to compensate.

If that reading is under 5vdc with no load and you've properly adjusted it then there is something wrong.

Did you try to adjust the converter? There is a small pot (dial) all the way to the right. Try turning it all the way up and take your reading. Then turn it all the way down and retest. This should tell you what the actual voltage range the converter is able to provide. I looked at the specs of the converter you bought and it says you should be able to adjust it 15%. I don't know if that means each way, up and down. If so you should be able to get it up to 5.75 volts DC with no load connected.

Do you have the AC power in selector switch that selects your AC power (110 or 220 vac) in the proper position?

I've seen multimeter testers go bad and give wrong readings. Try using a different tester or change the batteries in the one you're using.

I'm looking forward to hearing what you have going on there.

EDIT: If you're running on a power converter you should disable the low voltage warning setting for the EZB's. I think you can do it in both the ARC software and in the EZB Web interface. You don't need them and they will only drive you crazy. They are there to watch battery voltages so you don't damage the batteries or worse.

@dave

got it . i turned the screw all the way the other side and now i have 5.97 . whithout any devices or servo's connected .

this one i bouth. https://www.amazon.co.uk/dp/B07KCVBZ18?ref=ppx_yo2ov_dt_b_product_details&th=1

https://www.youtube.com/shorts/0mym2r7ub-I

thanks

Outstanding! Looks like your problem is solved. Congratulations.