Scanning string of characters from 4x3 keypad mikroc Pic16f877a

Mathi_theboss · Mar 30, 2013

Hi friends i want to know how to get a string of characters from keypad 4x3, like getting 4 numbers continuously pressed one by one, and storing in a variable.

jayanth.devarayanadurga · Mar 30, 2013

See the keypad example code in the mikroC examples folder. Also post your code.

Mathi_theboss · Mar 30, 2013

jayanth.devarayanadurga said:
See the keypad example code in the mikroC examples folder. Also post your code.

That example is for scanning a single key , i want to get 4 digit from the keypad and store in a variable....

jayanth.devarayanadurga · Mar 30, 2013

The example is for 4X4 keypad and not single key. If your keypad returns characters like '1', '2',... for keys 1,2,... you have to store the keys in a string array like keys[5]. If key[0] = '1', key[1] = '2', key[2] = '3', key[3] = '4' and you terminate the array with key[4] = '\0'. So, your key[5] will be equal to "1234".

Scanning string of characters from 4x3 keypad mikroc Pic16f877a

Mathi_theboss

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Scanning string of characters from 4x3 keypad mikroc Pic16f877a

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