Matched with the self-deception ruler , it can be used as a small mouse pad. A mobile phone that supports RFID can be placed on it to light up a small lamp. The RFID chip can also be welded and used as an RFID card. The size is 100mm × 72mm.

The bookcases of those born in the 1990s often have a few comics sealed in them, such as Detective Conan and Doraemon. Sometimes there are some strange things mixed in, such as girl comics such as Sailor Moon, Cardcaptor Sakura, and Sapphire Prince. Occasionally read it, what you read is youth and experience. Dream good friend Doraemon’s magical prop series, you can’t touch it, you have a lot of imagination, you can make one yourself~

Users who like in the comment area will be randomly selected to receive a sand sculpture set (including mouse pad, self-deception ruler, DingTalk punch card and matching decorations)

Actual PCB photos:

Various strange ways to play:

Incorrect usage: