I am trying to create an RF remote that has 6 buttons but the RF encoder only has 4 inputs. Is this possible and preferably I would not like to use a separate chip.
This is what I am using:
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2 Answers
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The IC has four inputs, you can activate multiple inputs at once, for 15 unique switch combinations.
You could use six diodes to decode 6 switches into 4 inputs.
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\$\begingroup\$ Of course sorry didnt think of that \$\endgroup\$ Commented Aug 26, 2014 at 20:11
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It has 4 inputs, which means you can input \$2^4\$ combinations of these inputs. To translate button presses to binary numbers, a priority encoder is needed, such as this one.
