THEY LIGHT UP WITH USB POWER!
What does that say? Well, that’s part of the fun! Each side has a different coded message. Drive your friends wild as they try to figure it out.
Amaze your friends and neighbors with this circuit board keychain that lights up when you plug it into a USB port.
The fiberglass circuit board is 1.5” x 0.5” and 64 mils thick. It features metal pads in numeric shapes and 8 mil traces that are disguised but not concealed beneath a green solder mask. One side of the board displays a message in binary code and 2 yellow LEDs. The other side of the board is another message in binary and 2 current limiting resistors.
Each circuit board hangs from a sterling silver earring hook.
This design is available in: keychains, necklaces, earrings, and magnets.
These circuit board earrings are an ideal way to show pride in one's techie skills or those of a loved one.
Check out our store for flash drives, circuit boards, and more!
All metals and solders are lead free, RoHS compliant, and safe for daily use. Every item is soldered and assembled by hand, thus each piece contains minor variations.
We can ship outside the United States! Contact us to find out about additional International shipping rates.