Description
LED running light module with NE555 CD4017 5V SMD kit. Build a dynamic LED running light with this NE555 + CD4017 Running LED Flow DIY Kit. The LEDs light up one by one in a smooth loop effect, the speed of which is easily adjustable with a potentiometer. Perfect as an educational soldering project, electronics experiment, or educational demonstration.
consists of an NE555 timer IC and a CD4017 decimal counter. Together, they form a clock and counter circuit that sequentially drives ten red LEDs. This creates the well-known “running light” or “waterfall LED” effect.
The NE555 acts as a pulse generator (astable multivibrator). The generated clock pulses are forwarded to the CD4017, which converts each pulse into the next output. As a result, the LEDs light up one by one. The 50K adjustment potentiometer allows the flashing speed to be precisely adjusted, from slow to fast.
The print on the PCB shows where the components should go. The longest leg on the components is the + and the short leg is the -.
Caution: Contains SMD components, not suitable for beginner solderers.
LED chase light module with NE555 CD4017 5V SMD kit specifications:
– Supply voltage: 3–5V DC
– ICs: NE555 timer + CD4017 decimal counter
– LEDs: 10 × 3mm red LED
– Setting: 50K potentiometer (speed control)
– Output: Running / flow LED effect
– Assembly: Solder yourself (DIY)
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