10pcs DC 5V DIY Electronic Windmill Training Kit Speed Adjustable MCU Course Design Set For Soldering

Description Working voltage DC 5VWork effect speed can be adjustedSize 40 x 50mmNote it is not soldering finished product it is diy kit Circuit principle The circuit is based on the control of the microcontroller the microcontroller controls the vertical LED lit so as to achieve the effect of a windmill rotation you can change the speed of the windmill flashing through the button Package included 10 x DIY windmill training kit