Skip to content
Better HN
Top
Best
Ask
Show
New
Jobs
Search
⌘K
0 points
pavel_lishin
10y ago
0 comments
Save
Share
I believe that RFID are not battery powered - the signal that pings them is what powers them.
0 comments
1 comments · 1 top-level
top
newest
oldest
madelinecameron
10y ago
Ah okay, yeah. I knew they were active and passive RFID tags but I think the last time I played with some was almost a decade ago, haha.
j
/
k
navigate · click thread line to collapse