Mindboards

Ah - interesting indeed! So we can actually use any PF handset with permanently activated button as beacon... (but perhaps there are IR beam width considerations?)

I opened an EV3... I didn't want to take the risk of breaking something, so I didn't go too far away, but enough to see the fuses. Indeed, there are 3 of them, all rated 1.1A. So maximum available current is 1.1A (permanent, something around 2A for a short time) for 2 motor ports.

OK, we have the same

so you mean overall 3A for all and everything? 3A is the internal current limit of driver chip. but its continuous rating is 1.5A (2A peak) per motor. But it can only provide current provided by upstream fuse, battery, etc... It looks to me like there are two separate thermal fuses one for each of ...

Input. I mean the fuse between the battery compartment and the EV3 main board. There is no output fuses on motor ports, but the driver chip does limit current to about 3A (and it has a thermal shutdown too if needed).

the load is always at the limit of the motor thermal fuses. I probably even will need 2-4 addional motors but there is no daisy chaining and no support of the MS RCX-MMux yet by BCC/C . Then I think EV3 input fuse will trigger... NXT one was a 1.8A fuse, hopefully on the EV3 with its 4 motors ports...

Depends on the load! clearly the "official" method would be to use another EV3 in slave mode. Anyway I'm fairly confident that you can try without burning anything...

As far as I know the EV3 motor driving chip is the same as the one used in PF receiver V2 (while NXT one was the same as V1). This makes this comparison somewhat releveant: http://philohome.com/pfrec/pfrec.htm. As with PF V2 the real power limitation will probably be EV3 input resettable fuse - and ...

Looks a lot like a 0.75A rated Bourns MF-MSMF075 resettable fuse... (the same used in all PF battery packs)

These motor do have a short description at the beginning of page, section "the roster", but indeed they are not shown by their numbers there... I'll try to improve this.