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Description
81 LED MATRIX
This circuit is an LED Chaser with 81 LEDs using two 4017 ICs and 555 timer
Parts list:
IC1 & IC3= IC 4017(2pcs)
IC2= IC 555
5mm LEDs (81 pcs)
T1 to T9= 2N2222 transistor(9pcs)
C1= 2.2uF capacitor
P1= 100K potentiometer
D1= 1N4007 diode
R1 to R9= 1K resistor(9pcs)
R10= 470 ohm resistor
R11= 10K resistor
R12= 3.3K resistor
Sep 19,2018
7,636 views
81 LED MATRIX
2 Layers PCB 100 x 100 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen
LED Caser
7636
12
10
6.06 (12)
Published: Sep 19,2018
Standard PCB
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