when the EU first proposed this, it would’ve been micro-USB.
They did. It was...
https://en.wikipedia.org/wiki/Common_external_power_supply#History
...and it had an expiry date, which was extended twice. It ran out in 2014.
The detailed legislation for the new initiative hasn't been written yet, but if it's sane it will again have an expiry date. The problem is, this time around, they're showing signs of wanting to bash Apple rather than being sensible.
it will have zero impact in e-waste as more and more cables will continue to be thrown away due to wear and tear this is unavoidable.
...but it is better than the bad old days when every phone came with a proprietary cable (often unique to that
model let alone brand) permanently attached to the power brick, so the whole adapter was landfill. Today, most
phone/tablet adapters have a USB-A socket so only the cable needs changing... which is what the EU should have been insisting on all along rather than focussing on the phone end of the connection.
Not sure if the EU isn't spitting in the ocean and taking credit for the tide here, though - once smartphones started being full-blown pocket computers rather than, well, just phones, it started making sense to give them USB - and if you put a USB socket in the charger then you only have to ship one cable for both charging and hooking to a computer...
The other missed step is to stop chargers (with the minimum power capacity they can get away with) being bundled with the phones. Instead, you'd just buy one or two high-power chargers that worked with
all your devices.
I've sometimes travelled with an iPad, a Kindle
and a phone (so, shoot me) and its great just to be able to take the iPad adapter (the most powerful) and two cables rather than three adapters... If those devices hadn't come with their own just-good-enough power bricks, I'd have removed a whole little toe from my carbon footprint and the planet would be saved and we could all eat as much meat as we wanted... maybe
:->
different AC Adaptors will continue as no one can do them all, all devices have different power requirements and making all be rated to the max so they can be used on all is just wasteful as this would require more materials to be used as AC Adaptors giving out less power are smaller for that reason.
The
hidden advantage of forcing USB-C would come by making everything conform to the USB-C power delivery spec: so you could plug any device into any PSU with the confidence that the device would negotiate the voltage/current with the power supply and, at worst, nothing would get damaged. MicroUSB was
partly there but I think a lot of chargers failed to meet the then USB battery charging spec and only charged at low current.
the Raspberry Pi used micro USB yet I had to buy a Power Supply design for it not use my existing one as it was no good
Raspberry Pi is not a phone - it can need every drop of the max 2.5A that vanilla MicroUSB can deliver, and if it doesn't get it, things stop working (whereas a phone would still charge slowly). Version 4 with USB-C charging
should have been better except they stuffed up the design and it didn't work properly with higher-power chargers (fixed in the latest revisions, I believe). Also, the Pi is very aggressively "built down" to that $35 price by leaving no corner uncut - so I'd cut it a few more breaks than a $1000 phone.
also UK plugs are different to the US and do on.
Not a bad idea when UK plugs are carrying twice the voltage and a different AC frequency, plus they are individually fused and have a safer socket design with shutters over live/neutral that only open when the earth pin is pushed in. I think the reason that the EU never tried to impose a standard mains socket is that the UK one would have won any rational contest for the safest design, and we can't have that. Anyway, most IT devices have a standard IEC socket of some sort on the other end. Note that, unlike USB-C, these are all
dumb connectors where the wrong voltage/current/polarity can be dangerous, so different shaped connectors serve a purpose.