
Mulberry
USA
Asked
— Edited
Morning All
Does anyone have experience or an opinion on putting an EZ Board in a project enclosure box (like the ones from Radio Shack)? I want to protect from damage and dust inside my B9. My thoughts were to cut side vents for heat ventilation. I plan to get as large a box as possible to insure circulation.
Thanks,
Daniel
Thanks,
Daniel
Daniel
So I took a 6 x 3 x 2 Radio Shack project box. Flipped it over and mounted my EZ Board on the inside of the lid. I then cut the side panels out of the box itself leaving the four corners with their screw mounts.
Safe, secure and well ventilated.
Daniel
I mounted a small fan and pointed it at the regulators on my V3 EZB. I found they didn't really heat up all that much so I removed the fan and cut down on some of the noise coming out of my B9. I know the new V4 will not have regulators so I'm not sure how hot it will get.
Just wondering; what kind if damage could you expect with the EZB being inside of the B9?
So bottom line is the new V4 EZB shouldn't have a heat issue.
I may just use two V4's in my B9 rather than a V3 and V4 (I have 3 V4s coming). That way the components are all the same, especially with the control graphics.
Quick question though. You say above:
" I know the new V4 will feed through the 12vdc I will be powering it with..."
Are you saying the V4 eliminates the need for an H-Bridge?
Regarding potential damage: I just want a bit of protection as I move components about plus my son tends to get over zealous with his basketball in the garage.
Daniel
But it does not mean a 12 volt servo could be wired/powered directly through the new board, correct? Currently I use an H-Bridge to prevent damage with my big servo with a separate power source. It lifts a lot of weight.
Daniel
Can't wait to see more of it!
Like what you've done with the v3 case too.
Daniel
Also remember we are talking about several things here; Voltage, Current (amps), V3 EZB and V4 EZB.
V3 EZB has on board regulators that will power servos and other things at 5vdc from the power pins of each port. They will give you 5vdc no matter what voltage you power the board with. Each port has 3 pins; 5vdc, ground and signal. You get your 5vdc power to run servos and other things by hooking up to the 5v & ground pins. You can only pull up to 5 amps (current) total from all things powered from the V3 EZB. The 3rd pin (the singnal pin) also provides 5vcd but is not rated to provide any current (amps) draw. You cant power anything from this pin. It's just used to send signals to turn stuff on and off like servos. It does other things too but I wont get into that now.
V4 EZB will not have any voltage regulators on it. What ever voltage you power the board at will directly feed to the power pin (the old 5vdc pin) of each port. From what I hear you cant pull more then 5 amps total from anything or all that is powered by these ports. I'm not sure what the power min/max is for the V4 EZB but the V3 accepts between 5vdc and 17vdc (I could be a little off here. Please check for your self).
Hope this helps,
Dave Schulpius
Thanks,
Daniel
The amount of current the V4 can handle will ultimately come down to the PCB trace thickness, widths and lengths which are unknown so I wouldn't like to hazard any kind of guess.
Code:
From above it looks like I was right about V3's input voltage. I stated: Min 5vdc and max 17vdc. However thanks for helping me to keep it factual.
Here's a link to that online V3 & V 2.1 manual:
www.ez-robot.com/Manual/EZ-B%20Technical%20Manual.pdf
It's very true when you imply that V4's true specs are mostly a mystery to us till it ships and a manual is supplied. *confused*