Just stepped out to buy gin so now I'm set.

See I created some dust-up. Sorry for the confusion

This heavy duty servo is to lift the bubble head of my B9 robot (several pounds). I wanted to reduce the power draw through the EZ (I have lots of components running through it) but now after working with the board I suppose that's unnecessary (fingers crossed). Let's step back and take this approach:

I have a GWS 6 volt servo I need to control. I've used a vertical servo control set at 1 to 180 degrees (to be modified later because of my mountings). Ports look good, proper board is selected, and power is from a bench power supply is set at 6V.

When I hit the center button the servo the board disconnects but I do get a wee bit of movement from the servo before that happens.

Daniel

If the board is disconnecting it's usually a sign of a power failure, often caused by drawing too much current.

However, if power is supplied by a separate source this shouldn't affect the EZ-B, it will only affect it should the same power supply be powering the servo and the EZ-B.

The EZ-B needs a common ground. double check the ground of the EZ-B power supply and the ground of the servo power supply are connected. Failure to have them connected will cause some faults.

@Mulberry .... Power problem... The servo needs more amps... You bench supply is probably not able to supply enough... Plug your ezb4 directly into a Lipo or niMh battery and try again....

No worries mulberry. We're all friends here. When you hit "centre" the board disconnects. What happens when you try to move it when changing the min/max values. Does the servo try to move or does the board disconnect?

Putting the bench supply aside for a moment, what type/voltage battery do you have for testing the servo? I think the bench supply is what's causing the problems.

No worries mulberry. We're all friends here. When you hit "centre" the board disconnects. What happens when you try to move it when changing the min/max values. Does the servo try to move or does the board disconnect?

I tried Rich's advice with a battery source and connected the servo ground to the EZ ground. This gave me some control but movement was very jerky and the system disconnected often.

Putting the bench supply aside for a moment, what type/voltage battery do you have for testing the servo? I think the bench supply is what's causing the problems.

This latest test was with a 6 volt battery pack (4 Ds at 1.5 each).

Its got to be a power issue. I wonder if its the fact this is a heavy duty servo but at 6 volts EZ should be able to manage it. Maybe not.

Daniel confused

The EZ-B can handle it. The HD's will need extra power (amps) for the extra torque. Also the batteries your using won't really be sufficient to power a servo, especially for the power in-rush servos use to start moving. When I suggestted using a battery earlier I was hoping you had a LiPo. A LiPo or similar really is your best options and really should solve the issue.

@Mulberry .... Plug the servo directly into the ezb.... no other wires nothing else attached to the ezb... Alkaline batteries (even D) cannot provide enough current either.... LOL... One more time... Use a Lipo or niMh battery plugged into the ezb...

So to recap...

1. Plug your GWS servo directly* did I mention directly LOL...into any port on the ezb...
2. Plug a ****Lipo or nimh **** battery into the ezb use 6v or 7.4v doesnèt matter

So just 3 things here... servo, ezb and powerful battery 3) Open ARC and connect... 4) use a horizontal or vertical servo control 5) Make sure the servo control reflects the port the servo is on 6) set min to 0 and max to 180 7) Save 8) slide the servo from position to position and watch the servo move...

:)

This servo obviously needs a lot of juice...

• alkaline battery.... No
• bench power supply.... No
• 7.4 Lipo.... ding, ding.... Hells yes!
• 6v or 7.2V nimh.... ding, ding.... Hells yes!

Problem solved....