Subj : Re: RP2040 reset idea To : theom+news@chiark.greenend.org.uk From : john larkin Date : Tue Sep 17 2024 19:02:10 XPost: sci.electronics.design On 17 Sep 2024 16:42:36 +0100 (BST), Theo wrote: >In comp.sys.raspberry-pi john larkin wrote: >> Some of my customers also want to lock a box such that it's impossible >> to write to any nonvolatile memory while it's in a secure area. >> >> So here's an idea: a small hole in the box allows a toothpick or a >> paper clip to push a button. A short push is a regular reset. A long >> push is a memory-stick mode boot. We can have a rotary switch LOCK >> hole too. >> >> https://www.dropbox.com/scl/fi/bbhdy053xsdzv77g0brc5/B-box_Reset_Button_3.jpg?rlkey=40ozzdvczf4z8625u8i081a9b&raw=1 > >Looks neat. But I wonder if there's a mechanical solution. eg give the >customer a loop to put a padlock through to lock the lid, and hide the boot >button behind, such that they can't press it without undoing the >padlock. Could even be something simple like a Kensington lock slot where >the boot button is deeply recessed in the slot - you have to stick a >screwdriver in the slot and can't do so if there's a lock inserted. > >Of course that might cost more than your solution, so you can probably >ignore me :) > >Theo It's a pretty small box. https://www.dropbox.com/scl/fi/phhyn6p5lnwyza9of9qil/B953_Right.jpg?rlkey=xuu5qclmygkruncrat6li1u3j&dl=0 If we mount two in a 1U rack adapter, it wouldn't be practical to remove the covers. --- SoupGate-Win32 v1.05 * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3) .