
Rural Geek
Hey everyone.
I am putting together a BOM for version 2 of my bot. Its going to be humanoid type of thing. Head two arms and mobile base I am using some ideas from here.
The arms are going to be driven by gear boxes from servo city, and I want to make sure they get what ever power they need. So I am wondering is there a board that I can supply power to and the signal from the EZ-B and plug the servos into the other side?
I am just trying to keep the EZ-B from working to hard and only doing the processing.
If so, I mentioned a board I made the other day. Very simple too, a small piece of strip board, +6V and ground feeds 2 of the tracks, these then have the servo extensions soldered in to the tracks also (from the female socket end), the male plug end is untouched and plugs in to the EZB for signal.
I did draw a PCB design for this (with 6V regulator) but it's at work and I wont be back until Monday. If it's unclear I will try to sketch it out for you.
If I have misread or misunderstood then ignore that
Yea thats what I was looking for. Dang as soon as I read your reply I was pissed I didn't remember reading that.
its going to come off the same 12v battery so there won't be an issue of floating ground.
I found a place in Ontario that can make PCB's for me but I have to make the drawing for them. What software would you recommend to make a PCB drawing?
If it's 12V you will want a 6V regulator circuit before the strip board, although I'm sure you knew that but others may not
ExpressPCB for anyone else who needs it. It's free too which makes it so much better.
The reason is I am not sure what its going to take current wise to just run the arms and speed and I just lazy to do the math.
No schematic yet, I should have chance to do that tomorrow.
R1 is a 1ohm 1/4 watt
C1 is 0.33uF Capacitor
C2 is 0.10 uF Capacitor
Voltage regulator is a TS7800 6V 1.5A Regulator L7806CV.
The LED and R1 are optional, there was space so I used it.
The Voltage Regulator is only rated at 1.5A.
Board is 1" x 1"
It should be able to take up to 35v DC and supply 6v DC to the 5 servo points. You could increase or decrease these depending on servo current etc.
And if needed, the .pcb file for ExpressPCB power.zip