LED Multiplexor

blefevre
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Using a PIC16F1827, multiplex 40 LEDs, with 2 button input to adjust LED position. Code has LEDs light up in thermometer style.
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Published: September 14, 2011 Concept

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Component (6)
Qty
Description
2N3903, 2N3904

Q7, Q9, Q5, Q1, Q3, Q13, Q6, Q12, Q10, Q2, Q8, Q11, Q4

13
2N3903, 2N3904 NPN Silicon Transistors
SSL-LX5093GD

D26, D39, D19, D15, D5, D7, D33, D25, D31, D32, D21, D29, D11, D8, D2, D24, D37, D22, D40, D23, D34, D16, D10, D14, D27, D4, D30, D35, D1, D28, D18, D13, D36, D38, D12, D17, D3, D20, D6, D9

40
LED Green
LM340-T5 / 7805

U2

1
LM340/LM78XX Series 3-Terminal Positive Regulators
PCF14JT1K00

R10, R7, R4, R13, R12, R8, R5, R1, R11, R9, R6, R3, R2

13
1.00 KΩ R

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