3.2.12 How to use
the Free LED 7 segments
On the NX-4i board prepares 2 pairs of LED 7
segments; separated by common anode type and
common cathode type (1 pairs per type). Convent
for test circuit involved figure output.
3.2.12.1 Connect the a-g and pt input to digital
signal directly. Because LED 7 segment has
connected the limit currency resister already.
3.2.12.2 In case, to use LED 7 segment common
anode type have to connect the COM input of LED
7 segment to +5V volatge or logic signal”1"
3.2.12.3 In case, to use LED 7 segment common
cathode type have to connect the COM input into
ground or logic signal”0