Techs & Trends
working of keypad
Hi,
I thought the working of keypad of Mobile as below_
- If we press any key, a particular signal is sent to IC/chip of handset. And this signal is different for different keys to do different operations. Please let me know if I am wrong.
- Please let me know what type of signal is that. whether it is voltage or current or any other type...(Please this is urgent)
Thanks and regards
Basavaraj Tambur
I thought the working of keypad of Mobile as below_
- If we press any key, a particular signal is sent to IC/chip of handset. And this signal is different for different keys to do different operations. Please let me know if I am wrong.
- Please let me know what type of signal is that. whether it is voltage or current or any other type...(Please this is urgent)
Thanks and regards
Basavaraj Tambur
...
