Discussion in "Electronics" started by    TPS    Aug 8, 2007.
Wed Aug 08 2007, 10:21 AM
#1
hi friends
here is my most wanted 4x3key board pcb i have used 4 pin micro switch commonly use in tv etc.
you can download it from here http://www.geocities.com/tpsbpl/keypad.zip
 ajay_bhargav like this.
Tags 4x3 keypad PCB
Wed Aug 08 2007, 10:29 AM
#2
wow.. this is a nice share.. thank you TPS. i am going to host your file on my server in the circuits section thanks again !dance
Wed Aug 08 2007, 03:53 PM
#3
welcome dear, i will soon post traffic signal project' PCB
thanx all for great support
:-)
Wed Aug 08 2007, 10:05 PM
#4
thank you.. for your contribution i will add a direct submit area.. where user can directly post their work... but it will be first reviewed by the admin
Fri Aug 31 2007, 11:15 AM
#5
download its pdf file
Fri Aug 31 2007, 11:34 AM
#6
add the top text layer too.. so easy to assemble the PCB
and.. which software you use for PCB design?
Fri Aug 31 2007, 03:04 PM
#7
well i use Express PCB
Fri Aug 31 2007, 07:22 PM
#8
keypad silk screen
Fri Aug 31 2007, 07:39 PM
#9
great.. i will combine both and put it in the download area
Fri Sep 21 2007, 04:06 PM
#10
can you please provide a schematic for 4x4 keypad using same 4 pin switches!? waiting for reply..

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Thu Jun 11 2020, 11:57 AM
anudee
sir could please send the code for I2C and wifi interfacing with 8051
scena
Wed May 20 2020, 03:59 AM
Does anyone have microcontroller programming software for STC15F104W (core 8051, 4 k, 128 byte, 6 I/O pin, UART ... DIL8), that works?
Sun May 03 2020, 01:08 AM
Tamu Gurung
Hi I am looking for a assembly language program for a digital decimal counter. Time counts max limit of 2 mins starting from 2.00 mins and ending at 0.00. time is to be displayed on 4 7-segment LED displays. Edsim51 simulator to be used. Thanks
Wed Mar 25 2020, 07:09 PM
Tajammul
Sir kindly send the code file i2c for 8051
ExperimenterUK
Sat Mar 14 2020, 04:06 AM
@ Rohitnani,ABEBE..which project ?
Fri Mar 13 2020, 06:25 PM
ABEBE
how can get hadwere of this project
Rohitnani
Sat Mar 07 2020, 10:41 PM
Sir, Could you please send me the zip file input password....
Wed Feb 26 2020, 10:28 PM
Peter Parker
Is it possible to send multiple messages using only 1 GSM module?
Sat Feb 01 2020, 03:42 PM
Pearl Olin
Hello,
Wed Jan 22 2020, 11:46 PM
MINU CHAUDHARY
I m getting errors while simulation process during interfacing socket output and lcd... Can i get the report of ur project which is same as us.

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Mirza123
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Wed Jul 01 2020, 11:07 PM
PS: I am a new learner thats why my question may s...
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Posted By Mirza123
Wed Jul 01 2020, 02:05 PM
Thanks for the assistance. I have read the data sh...
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Posted By ExperimenterUK
Wed Jul 01 2020, 10:12 AM
See section 15 (Ports) of the data sheet. ...
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It seems ports on the AT89LP2052 are not like on t...
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It is about capacitor? i should put it between Vcc...
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Posted By cerouno
Wed Jun 17 2020, 10:37 AM
Take another look at the power supply to the LCD.A...
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Wed Jun 17 2020, 02:01 AM
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