LED Fingertip Top Three-leaf Finger Top Transparent Acrylic Shell Luminous Display DIY Production Kit
Description
Feature Weight 40gPower supply 3 CR1220 button batteries excluding battery Dimensions 7 1cmCircuit board material double sided 1 6 FR 4 glass fiber boardFunctional principle After welding it can be rotated on the finger Can display text pictures Three CR1220 button batteries are used in series to supply power After being stabilized to 5V by the voltage stabilizing chip it is provided to the single chip microcomputer with a power switch The 24 SMD LEDs are controlled by the single chip microcomputer to flash and emit light at high speed according to the font data using the phenomenon of persistence of human eyes Package includes 1 x DIY KIT
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