this post was submitted on 02 Sep 2023
244 points (92.1% liked)
Asklemmy
43984 readers
683 users here now
A loosely moderated place to ask open-ended questions
Search asklemmy π
If your post meets the following criteria, it's welcome here!
- Open-ended question
- Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
- Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
- Not ad nauseam inducing: please make sure it is a question that would be new to most members
- An actual topic of discussion
Looking for support?
Looking for a community?
~Icon~ ~by~ ~@Double_[email protected]~
founded 5 years ago
MODERATORS
Our Aldi now has electronic price tags for each product in the centre aisles. I wonder if they're Bluetooth.
It varies. Some of them use Bluetooth Low Energy, some of them use other wireless techniques for lower power and greater range.
I have an idea, there are some restaurants around, maybe its these restaurant pagers.
They're usually e-ink displays that get their power from NFC, so they're probably not Bluetooth
Thatβs not correct. They run on coin cells and use their own RF protocol. Most use something like zigbee. Others even use light to transfer data.
Usually they use something (but not exactly) zigbee