DIY 51MCU LED Hand Spinner Production Kit Soldering Practice Board With Housing

Description It is a DIY part and it needs to have the soldering element of the SMD component If there is no foundation according to the PCB mark it is generally no problem to assemble it More than 20 kinds of display effects 3 kinds of LEDs give more than 12 all red all green all blue can be mixed Can display text and graphics using 51 single chip control Powered by 2 CR2032 button batteries low power consumption Package inclueded 1 x DIY 51MCU LED Hand Spinner Production Kit With Housing