Editing PointLess LED Array
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[[Image:LedArraySchematic.png | Circuit]] | [[Image:LedArraySchematic.png | Circuit]] | ||
− | + | IC1_PIC16F877 PIC Microcontroller. | |
− | + | CA, CB, CC, CD Usual mix of large ( electrolytic )and small caps for use with regulator. | |
− | + | Q2 4 Mhz crystal. | |
− | + | C1, C2 approx 15 pf. | |
− | + | REG 5 volt regulator I used LM7805. | |
− | + | REL1...8 Current limiting emitter resistor say 200 ohm. | |
− | + | IC2 Low side switch array ULN2803. | |
− | + | IC3 High side switch array UDN2891. | |
− | + | LED Array Not shown, go to futulec or other supplier and look around. | |
− | + | D1 Reverse protection diode, low current rectifier should work, as should just leaving it out ( works most of the time, then the regulator blows, or not ). | |
=== Printed Circuit Board === | === Printed Circuit Board === |