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Knitting Counter

Knitting Counter
Knitting Counter

Knitting always involves a lot of counting as you have to keep track how many rows you’ve knitted and how many should follow. This can of course be done with pen and paper, but it’s more fun with an electronic variant using a microcontroller.


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Materials

Component list

Weerstanden:
R1–R7,R14 = 330Ohm
R8–R13 = 10kOhm
Condensatoren:
C1 = 47µF 16V
C2,C3 = 100nF
Semiconductors
D1 = LED, red, 5 mm
Display = KW3-561-CSA (Lucky Light) or 3 discrete 7-segment-displays (CC)
T1,T2,T3 = BC547
IC1 = PIC16F628A, programmed
Miscellaneous
S1,S2,S3 = pushbutton with make contact
S4 = slide switch with make contact
9V battery with clip-on connector
Piece of experimenter’s board

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