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BCD to HEX IC, thmbwheel & 7segment interfacing

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Bhavik Shah

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bcd hex ic

Q1)which IC can be used as a BCD to HEX converter?
Q2)circuit diagram or methodology for interfacing 4 thumwheel switches &
4 digit 7 segment display?
 

bcd hex c

Hi,

Q2/Thumbwheel switch.

Common pin connected to ground. Each other pin connected to an input port of a mcu or to an input of a buffer with a pull up resistor.

Q2/7 segment

see this schematic as an example :

h**p://chaokhun.kmitl.ac.th/~kswichit/2051/7-seg/7-seg.htm

* = t
 

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