PIC16F628a Led Chaser

Description:

The heart of the LED chaser is the 'PIC16F628A' microcontroller, IC2. The program that runs on this chip controls the LEDs attached to the output port pins. Resistors R1 - R8 limit the current through LED1 - LED8 to a safe level. Resistor R9 provides a pull-up for the input connected to switch S1.

Schematic:

click on image to zoom

Components:

• Resistors, R1 - R8 330 ohm 0.25W
• Resistors, R9 - R10 10k ohm 0.25W
• IC2 PIC61F628A
• Socket for IC2
• Red LEDs (8)
• S1 Push Switch

5v Power Supply Schematic:

Components:

• Capacitor, C2 100nF 5v Dielectric Ceramic
• Capacitor, C3 220nF 5v Dielectric Ceramic
• Jp2 Single row PCB header plug
• IC1 LM7805 5v voltage regulator

Hex code:

Note: Just copy the below code and paste it in notepad and save it with '.hex' extension, as chaser.hex.

:020000040000FA

:02000000B52821

:08000800BB00030EBC000A0856

:10001000BD00831264009D3081070B11E220B50BF7

:1000200017283230B500B715AA03031937143D0855

:100030008A003C0E8300BB0E3B0E09003520B71D25

:100040001E28B711051E2C28360A03192A28FC3E43

:100050000318B714B6011E28360A03191E28B60065

:10006000803A06300319A0001E288A012008820762

:100070004028532861286928742885289128B128A8

:10008000A00A30083F213713B7132F21B8184C2886

:100090002B1BB717192108002B1F08006821031C10

:1000A000371719210800B71C5928B7100330A000D2

:1000B0000800371C08002B081F39031D1929A00A46

:1000C0000800A00A381D08002F2119210130A000C6

:1000D0000800A00AB8180800B71F08002F21B7139E

:1000E00037170130A0000800A001B8187D28B00A19

:1000F00030082F060319B001080068212C05B00054

:100100002F08300203187D280800A8013808A7002E

:10011000B71C0800B71003100130381D380DB800A7

:1001200008000730371D0530A000B7100430B706AF

:10013000FF30B600B81D08008B120B118B13640042

:10014000810183160F30810083128601B60163009E

:100150006400051AA628B60A3608023A031DA72825

:10016000B528A801A701A0010800860107309F005B

:100170008316103085008601003081008312203004

:1001800084003D308001840A0406031DC1289D308F

:1001900081003230B500FF303F212F03BB00AC019E

:1001A0000830BB0DAC08031D0314AC0DFF3E031D4E

:1001B000D128B0011F30A9000130B8000B118B16F7

:1001C0008B171E2822082305240525052605A104D2

:1001D000210886002508240523052205A6062408F3

:1001E00023052205A50623082205A4062208A30646

:1001F000A209A90B08001F30A900A1012808A2002C

:100200002708A5002805A300A400A6000800B20046

:10021000B20DB30CB20DB30CB20DB30CB20DB30CE6

:10022000B20DB30CB20DB30CB20DB30CB20D330C56

:1002300008003821AA003710013E03192A29382165

:10024000371B0721B4003821371B0721A7003408CA

:10025000A800080033213821AB03371408003321EC

:100260003821AB0008002E08BA002D08B90008009C

:100270003A088A003908B90A0319BA0A8200B0009C

:100280005C21B00803190800AE00B1016121013EF4

:1002900003195A29033003190230AD070318AE0AB7

:1002A0006121013E031D4C29310AB1003006031DB6

:1002B000462908003108AF007630AD000130AE00AD

:1002C00008002E088A002D08AD0A0319AE0A820024

:1002D0003E083F040319BF090310BE0DBF0D031CE8

:1002E0007429A130BE06BF063F0808000534083453

:1002F0008134003408344234003408342434003467

:1003000008341834003408349934003408345A342A

:10031000003408343C3400340834003418340834D1

:100320000034183408348134183408344234183412

:100330000834243418340834183418340834993400

:10034000183408345A34183408343C341834083417

:100350001834183408343C343C3407347E347E344A

:100360000634FF34FF340834E734FF340A34DB3416

:10037000E7340A34A534C3340A34423481340C34AB

:1003800081340034FF3448340534E03440340534DB

:100390007034203405343834103405341C340834B7

:1003A00005340E3404340534073402340534833400

:1003B00001340534C1344034FF3448340334E0346C

:1003C000403403347034203403343834103403346C

:1003D0001C34083403340E34043403340734023438

:1003E0000334833401340334C1344034FF3448349B

:1003F00002348034803402344034403402342034B7

:1004000020340234103410340234083408340234F6

:10041000043404340234023402340234013401342A

:1004200002348034803402344034C0340234A03486

:1004300060340234503430340534283418340734EE

:1004400014340C3409340A3406340B3405340334C0

:100450000C34023401340E3401340034FF3443349C

:100460000134803480340134403440340134203449

:100470002034013410341034013408340834013489

:1004800004340434013402340234013401340134BC

:1004900003340234033404340534063405340B3495

:1004A0000C3406341734183407342E3430340834FE

:1004B0005C3460340934B834C0340A346034803475

:1004C0000B34803400340C3400340034FF344834AE

:1004D00008348234813408344134C0340834A034C0

:1004E0006034083450343034083428341834083434

:1004F00014340C3408340A34063408340534033414

:10050000FF340A34083466340034083499346634CD

:1005100008346634FF3408349934FF3408346634C0

:100520009934083499340034FF340E34073481345C

:1005300000340734413482340734A534C3340734DB

:100540005A34E7340734A5347E3407345A343C3403

:100550000734243418340734183400340734003492

:100560000034FF340A3408340034CC340834003406

:100570006634083400343334083400349934FF349A

:1005800044346434FF34003414347F3480341434FD

:10059000FF3480340234FF3440340234FF342034DA

:1005A0000234FF3410340234FF3408340234FF3490

:1005B00004340234FF3402340234FF340134023490

:1005C000FF3400340234FF3480340234FF344034CA

:1005D0000234FF3420340234FF3410340234FF3448

:1005E00008340234FF3404340234FF340234023459

:1005F000FF340134FF3404340734DB343C34073433

:10060000B734783407346F34F0340734DF3460346F

:1006100007346F34F0340734B73478340734ED34AA

:100620001E340734F6340F340734FB3407340734F0

:10063000F6340F340734ED341E34FF3404340734F9

:10064000FF34803407347F34C0340734BF3460341F

:100650000734DF3430340734EF3418340734F734D8

:100660000C340734FB3406340734FD3403340734C8

:10067000FF3401340734FE3403340734FD340634C8

:100680000734FB340C340734F73418340734EF34B0

:1006900030340734DF3460340734BF34C034FF34BF

:1006A00006340734813400340734423400340734CC

:1006B00024340034073418340034073499340034B7

:1006C00007345A34003407343C34003407340034DF

:1006D000183407348134183407344234183407345A

:1006E00024341834093418341834093400341834D4

:1006F00009341834003409340034183409341834F7

:100700001834033424343C3404345A346634053405

:10071000A534C33406344234813407348134003480

:10072000073400340034FF345F34073488348834AD

:100730000734443444340734223422340734113427

:100740001134FF345F340734AA34CC3407345534C1

:1007500066340734AA343334073455349934FF34BB

:1007600009340934A534C3340934DB34E73409349B

:10077000E734FF340934FF34FF3409347E34FF3466

:100780000934BD347E3409345A343C3409342434B9

:100790001834093418340034093400340034FF3478

:1007A0004C340634A234C13406345134E0340634B7

:1007B000A834703406345434383406342A341C34A3

:1007C000063415340E3406348A340734063445347E

:1007D0008334FF34443406348034003406344034E7

:1007E0000034063420340034063410340034063427

:1007F000083400340634043400340634023400343F

:100800000634003401340634803401340634403474

:1008100001340634203401340634103401340634F3

:10082000083401340634043401340634003403340B

:100830000634803403340634403403340634203420

:1008400003340634103403340634083403340634D5

:100850000034073406348034073406344034073417

:100860000634203407340634103407340634003498

:100870000F34063480340F34063440340F340634D9

:1008800020340F34063400341F34063480341F34CF

:10089000063440341F34063400343F340634803488

:1008A0003F34063400347F3406340034FF340634D9

:0E08B000FF34FF34013400340034FF34FF34D1

:02400E00743FFD

:00000001FF

Now burn the ucontroller using JDM Programmer. For more details read my article "Getting Started with ucontroller".