@gtmize You need to post the Amazon link again in a way that works. I use a URL shorter. If the board is a clone, then you may need to change the proc...

@gtmize What exact board are you using, and what board are you selecting in the drop down. the 2040 has numerous entries, one right a bunch wrong.

@gtmize Does the UNO work?

@gtmize Choosing an old processor is fairly common for NANO clones, I have a few of them. I had not heard of that happening with the very new RP2040 o...

@dronebot-workshop OMG, I do hope the 'comes in three' does NOT happen. Seriously though, I am hoping for a speedy recovery for both you and your Mom ...

@itinerant-john I can still remember my great grandmother cranking the phone to make a call. When the operator answered she asked for her party by nam...

@itinerant-john Here is the Amazon link to a boost converter that is adjustable up to 70V.

@itinerant-john Why do you need to try something as tricky as +-25v when you can buy a 50V boost? I showed you a 70V adjustable which would be much be...

@dbwfred So #1 main drive is a done thing, no changes needed? You want to add a second mechanical brake? The Arduino losing power and engaging bra...

@davee I am not sure what your point was. It seemed to me you missed the description of the 'fail safe' on passenger lifts. Power goes out, brakes are...

@davee Here is a picture of a very typical hoist motor and brake. The small device on top of the brake is the electromagnet thet deactivates the brake...

@davee I am a little mystified by the proposed solution, although my experience with dumb waiters is smaller and very long ago. Emergency systems don'...

@dbwfred To answer your questions. Q1. YES Q2. Depends.

@dbwfred Most of the time we don't get enough information.