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2 Pcs NE555+CD4017 LED Chaser Water Flowing Light Module DIY Kit Electronic Circuit
Feature: 1. Mainly composed of clock generation circuit and decimal counter circuit. 2. The self-excited multivibrator with NE555 as the core the power supply charges capacitor C1 through R2 R3 R4. When C1 starts charging the 2 pin of NE555 is still...
$8.72 Free Delivery