@ Roger, All these Servos we work fine on 6v.

@Cem,

Thank you for your confirmation! I'm very excited!

Hello Everyone, All,

I have another question on following Gael's tutorial, the ribbon cables are being used to say connect the servo motor to the arm breakout board and then to the nervo board, plugging in the ribbon cable,

My question is how does this work for the ezrobot controller, I don't see any ribbon cables male connector there for the servo signals and power (I can only see the camera and the I2C ones.....), so I'm confused on what to do? : for connection of the ezrobot controller to Gael's breakout boards.

Thank you for your help,

Kind Regards, Roger

You will have to wire everything manually. Realize Gael's system is custom designed for the Arduino/Nervo boards. Go back to my thread, it show me converting from the Arduinos over to EZRobot.

Dory, you'll have toss every idea from Gael's method of wiring. EZ Robot is easier by far.

I put one EZb4 in the head, controlling the all the head servos, shoulder servos, abdomen servos and camera then put 1 ioTiny in each bicep controlling the bicep, wrist and finger servos.

Here is link to my project. There are some photos of the wiring. T-one project

You only have to run a signal wire to each servo from the EZb4, ioTiny and 6volts positive and negative to each servo from a bus. This drastically cuts down the mass of wires. There MUST be a common ground between the boards and servos.

Hope this doesn't add too much to the confusion.

Ask any questions, this is a great forum to get help.

Hi Bob,

Ok, it sounds like your wiring concept is totally different to Gael's method,

I had looked at your link with your photos of wiring, I understand that you wired in a way that only run signal wires from EZB4 to the servos, but what I don't understand is: (sorry I'm still very new to this...)

1. Gael's method uses breakout boards so that the main wires runs back to the mainboard, in your method of wiring, what do you use? or did you connect the signals from the servos directly to the EZB4 controller without using the breakout boards?

2. You mentioned 6volts positive and negative to each servo from a bus, what does the bus means? Can I buy it here? It looks very neat wiring in your photos, stunning!...

3. I have attached a photo of the EZB4 and servo motor test HK15298B, it works, but "only" with the inline 5V regulator which I bought from the shop here, does that mean, each of my servos, I need to connect the 5V regulator? I found your youtube videos and is it a power distribution unit that you are using? as I cannot find this to purchase anywhere online, please let me know if I'm on the wrong path,

4. also, I tried to power the EZB4 with a 6V battery (photo attached) but that didn't turn on the unit, after that I decided to tested with 8 (1.5v batteries) and then EZB4 turns on (in the photo), so does that mean I will need a 12V battery all the time to run EZB4?

Thank you for your assistance, you are very kind and friendly and yes this forum is great! Really appreciated!

Kind Regards, Roger

@Roger,

To answer your question 4. the EZ-B v4 controller input voltage spec is: 4.5v to 16v

See: https://www.ez-robot.com/Tutorials/Files/EZ-Bv4%20Datasheet.pdf

Also read up on the Low Battery Warning’ feature and default settings for that.

Use a 6V 12A SLA battery... FYI that voltage regulator you are using in the picture can only output maybe 1amp... not nearly enough for even one servo...