Feature:   Model: EH-30.  Working voltage: DC3.3-5V or 3*AA battery.  Speed: Adjustable.  PCB size: 74.4 x 43.7 x 24mm.  Color: Red LED.    Package includes:   5 x DIY Electronic...

Description:   The suite,adopt a warning lamp circuit NE555 and CD4017 chip simulation to make blue LED and red LED flashing, respectively, according to the pulse adjusting RP1 flicker frequency...

Working principle: Using the SMD CD4060 control 12 red, yellow and green LED flashing, adjust RP1 can change the speed of flashing, while the music chip issued a wonderful music....

Description:It is DIY kit, need to assemble it yourself.Color: BluePackage included:5 x DIY LED Round Flash Electronic Production Kit

Feature:  16-tone box under your control, arbitrarily issued 16 kinds of interesting analog sound, is not only an electronic toys, also can be used as the doorbell or alarm.  Specification: ...

Specification:  Material: Carbide;  Shank diameter: 6mm;  Head size: 10mm;  Head type: D+G+C+F+A.     Features:  1. Perfect for opening holes, or porting heads on ferrous materials;  2. Made of tungsten carbide, durable to...

Description: ICL8038 is a kind of monolithic function signal generator with excellent performance.  It can generate sine wave, triangle wave, square wave and square wave.  Feature: Operating voltage: DC12V.  Working...

Description: AT89C2051-based of four electronic clock kit.  Supply voltage: 3V  ~ 6V.  PCB Size: 52 x 42mm.  Function: Seconds correction (for precise School).  Switch to every minute independent display interface...