It has a USB blutooth dongle BUT it also has a Micro USB port and because it has 2 x aaa battery compartment, i doubt the microUSB is for charging. The cover says operating 3.3V which will be the 2 x aaa, but it also says 5V input, which will be the USB, THEREFORE my guess is, theres a good chance it will run on USB too, but it might just be to power it to “talk” to the dongle…
Way to not commit Pilgrim
Testing will happen, I just need to wait until my micro-USB cable is freed up
you can switch between keyboard and mouse. I also got a phone arm holder to strap it on my arm, but i havnt used it in a while … maybe i need to take it out and use it again
I’ve considered making one (of that scale), but PCB design is a little out of my reach and not something I want to do anytime soon. Eventually sure, but I have other skills I want to focus on in the meantime. I could probably use a blackberry keyboard, but then I’d need to translate out the ribbon cable. Hmm.
I shall hunt another day. Today is Friday and I’m burnt out.
I may have found something for you. You’d have to order it from China, but it’s a micro and very basic wired keyboard. 84x54mm sounds pretty close? Rather than USB, however, it uses I2C to communicate with whatever control board/Pi/Arduino you might want to use.
I have a question for the chemistry nerds: what can cause TPU to disintegrate?
I have two items that are falling apart that were exposed to a building that had unexplained air quality problems. I don’t know if it’s related or if it’s just the material degrading but I’m kinda curious. It’s weird seeing such a flexible plastic crumbling apart.
I’m kinda puzzled that the top on a multimeter case is still intact, but the bottom became a sticky and crumbly mess. Both sides are black TPU of some sort. And the other thing that’s falling apart is a rubberized part on a current clamp that was stored in it’s nylon case.
I do wonder if the air quality problems were related but to this day, I don’t really know what was in that air, apart from an increased CO2 concentration and something that condensed into an oily substance that floated in open water containers.
Anyways, I need a new case for my Sanwa PM300… The current clamp is a UNI-T so I should probably replace it regardless of the rubberized knob that’s falling apart.
Hopefully, Satur9 won’t lynch me for having a chinese deathtrap in the “for engineering use only” bucket.
The Sanwa PM300 was discontinued back in 2021/7/20.
That was a great little pocket multimeter with true RMS and probably the best cat rating for it’s size.
Apparently the original case is still available in Japan, but I don’t know if I’ll be able to order one. So I’ll probably end up 3D printing one out of PETG or ABS.
As well as a small Solenoid door lock mechanism that i picked up on Aliexpress for 11$
Basically when scanned, if it is part of the approved Access Card List it lifts up the solenoid lock. Just a visual demonstration of it working. But with the project complete you can actually use it now.
Parts List and everything is in my Git aside from the door lock actuator guy…
I’m absolutely not knocking that beautiful work, but think about getting a whole car door from the salvage yard and work it into the power lock mechanism. For max gee-whiz factor. And science. Do it for the science.
But you’re definitely not getting on a plane with a car door. So if you’ve gotta travel, plan accordingly.
An entire car door is a bit much. I was considering a tiny mag lock and a fairy door. Then I just figured the solenoid actuator was enough of a visual.
Since it’s all driven by a relay you could easily just run the lock actuator through the relay and it will work.
I’m sure there are some slim wiegand readers out there
