Features: A quartz crystal controlled clock movements with hour, minute and second hands; Ideal for replacing defective units or for creating your own personalized clock projects; Great for repairing, replacing...
Features: Best for assemble and posted on any mental material. Adopting reliable magnet material, it is non-toxic and harmless. Creative and hot puzzle toy for enhancing assemble ability. Improve intelligence, imagination...
Deceleration stepper motor: Diameter: 28mm; Voltage: 5V; Stepping angle: 5.625 x 1/64; Reduction ratio: 1/64; 5-wire 4-phase can be driven with ordinary uln2003 chip can also be used in...
Description: Circuit board is made of FR - 4 glass fiber, tough and durable plate. Reasonable circuit layout design. Use your creativity, diy your LED clock! Voltage: 5V-12V. PCB...