|
|
|
![]() |
|
|||||||
|
||||||||
![]() |
|
|
Thread Tools | Rate Thread | Display Modes |
|
|
|
#1
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
Quote:
I'd like to see one of two things: A) Say that teams can use batteries for computing devices provided it is done safely and doesn't interface with the control or motors for the robot. This can be demonstrated by having the team turn off the robot and see what is still running. or B) Make the only legal source of power on the robot to be the ROBOT battery. |
|
#2
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
Quote:
|
|
#3
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
Quote:
Also, S03 already covers unsafe robots. |
|
#4
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
So you're OK with an LRI arbitrarily looking at a battery powered custom circuit and saying "I deem that to be unsafe"? You don't want rules in place to actually tell you what is considered a safe setup and what isn't?
|
|
#5
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
It's already a rule and happens all the time to rookie teams.
|
|
#6
|
|||
|
|||
|
Re: How to power Mini-PC on robot?
Or to any team that doesn't follow whatever inane whims some LRIs seem to have.
Pre-Edit: Don't read any subtext into this. If you think it's an attack on someone, it's not. Seriously, I'm not that subtle. |
|
#7
|
|||
|
|||
|
Re: How to power Mini-PC on robot?
I initially saw the rule (COTS device with Battery) as a power limiting concession, but can also appreciate how it is a safety issue (did the team design the power circuit correctly).
A COTS device that includes a battery is an easy bright line to enforce. If you allow teams to install any battery, then what are the rules on what can get a battery? If a fire starts because a custom battery circuit shorted out, how do you turn it off? I'm surprised that Samsung 7's weren't banned. |
|
#8
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
Shh! Don't ruin it for us.
|
|
#9
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
Quote:
People aren't asking for "any battery" to be legal, just USB batteries of some shape or form. These are common devices, with a known output plug, voltage, and current. A restriction saying "COTS batteries that output 5V power over USB at 2 amps or less and 10,000mAh or less" for example would be reasonably narrow, wouldn't result in these strange nightmare slippery-slope kids-wired-a-battery-at-home-using-bare-copper scenarios people keep jumping to, and would fix this and many other problems. |
|
#10
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
Quote:
Quote:
|
|
#11
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
Quote:
Quote:
|
|
#12
|
|||||
|
|||||
|
Re: How to power Mini-PC on robot?
Wow, 3 pages of replies to the poor guy that needed to source a weird power supply for his mini PC. He must be getting lots of help, I probably don't even need to... Oh.
So team-4480, have you gotten any more info on the stock power supply? I'd love to help you figure out an off the shelf solution for powering that. |
|
#13
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
Quote:
I did some searching on bypassing the "smart power plug" and there are some people suggesting that it has been done just to wire in a 2K resistor to the positive side and a capacitor to the negative and feed that into the white wire. Apparently, that white wire wants something like 12-13V. Last edited by team-4480 : 24-01-2017 at 20:20. |
|
#14
|
|||||
|
|||||
|
Re: How to power Mini-PC on robot?
Quote:
At any rate, this car charger will probably work. It's listed as compatible with the same laptops that your stock charger is compatible with. It has to be a boost charger of some sort, though there isn't a guarantee of how low an input voltage it'll work with. Still $20 for a potential off the shelf solution seems reasonable to me. |
|
#15
|
||||
|
||||
|
Re: How to power Mini-PC on robot?
I think it's vaguely clear that by "integral", they mean, like, the battery isn't an external device that plugs into the power supply port in lieu of a regular power supply. A laptop not only has a cutout for a battery, but a port purpose built for its use, and hardware integral to the laptop to regulate its charge. I think it's not THAT hard to understand the Q&A on this.
All of that being said, I think the rule is stupid and pointless and has no business making this distinction. USB batteries for custom circuits should be allowed. I know they aren't, so I won't use them, but they should be. It's silly that they aren't allowed, and it arbitrarily makes some solutions (more expensive ones!) better than others (more accessible ones!). Rules for USB batteries don't have to be complicated. Allow a USB powered custom circuit to connect to it using standard ports and cables only. Make it like pneumatics where you can't modify the cables or the battery or use custom wiring or whatever. Maybe even regulate the size of the USB battery if you must. This is not prohibitively difficult. |
![]() |
| Thread Tools | |
| Display Modes | Rate This Thread |
|
|