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Discussion Groups | BasicX | pins??

Discussion forum for the BasicX family of microcontroller chips.

pins?? - mixman1982 - Aug 13 12:43:00 2002

hi everyone i bought a 4x4 keypad from jameco a while back and i
can't figure out which pin goes to my ede1144 keypad encoder. there
are 9 pins on the keypad and only 8 inputs into the keypad encoder.
can anyone help? i scanned pictures of the keypad to give everyone
an idea of what i am working with. the pin outs for the keypad
encoder are these:

1 rs-232 output
2 baud 0=2400, 1=9600
3 connect to +5v
4 connect to +5v
5 digital ground
6 row 0 output
7 row 1 output
8 row 2 output
9 row 3 output
10 column 0 input
11 column 1 input
12 column 2 input
13 column 3 input
14 connect to +5v
15 oscillator connection
16 oscillator connection
17 data valid output
18 beeper output

any help would be greatly appreciated! thanks.

conrad




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pins?? - mixman1982 - Aug 13 12:44:00 2002

hi everyone i bought a 4x4 keypad from jameco a while back and i
can't figure out which pin goes to my ede1144 keypad encoder. there
are 9 pins on the keypad and only 8 inputs into the keypad encoder.
can anyone help? i scanned pictures of the keypad to give everyone
an idea of what i am working with. the pin outs for the keypad
encoder are these:

1 rs-232 output
2 baud 0=2400, 1=9600
3 connect to +5v
4 connect to +5v
5 digital ground
6 row 0 output
7 row 1 output
8 row 2 output
9 row 3 output
10 column 0 input
11 column 1 input
12 column 2 input
13 column 3 input
14 connect to +5v
15 oscillator connection
16 oscillator connection
17 data valid output
18 beeper output

any help would be greatly appreciated! thanks. here is the links
to the pictures.
http://us.f1.yahoofs.com/users/ea2ad688/bc/front.jpg?bc_tNg9AhZcDWWlC
http://us.f1.yahoofs.com/users/ea2ad688/bc/back.jpg?bc_tNg9A2hLTmjhN

conrad



(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

RE: pins?? - James R. Parish - Aug 13 19:43:00 2002

Heheh. That little keypad is the same one I use. It is also the reason I
don't buy any more from Jameco. They are "scalping" the PIC & "stamp" users
with it. I have an older Jameco catalog that lists it for $6.95, I bought
it from the next catalog for $7.50 and I though that was a bit pricey. They
raised the damn price up to almost $15 on that little "surplus" keypad. I
have shopped with Jameco since the 70's when they were known as "James
Electronics". Darn shame too, they have some nice stuff. I don't recommend
them anymore and I now only use BG Micro, DigiKey, Newark Electronics, All
Electronics and Alltronics. And to boot, the damn thing didn't come with a
pinout either. Yes I have the pinout.

-----Original Message-----
From: mixman1982 [mailto:]
Sent: Tuesday, August 13, 2002 1:45 PM
To:
Subject: [BasicX] pins??

hi everyone i bought a 4x4 keypad from jameco a while back and i
can't figure out which pin goes to my ede1144 keypad encoder. there
are 9 pins on the keypad and only 8 inputs into the keypad encoder.
can anyone help? i scanned pictures of the keypad to give everyone
an idea of what i am working with. the pin outs for the keypad
encoder are these:

1 rs-232 output
2 baud 0=2400, 1=9600
3 connect to +5v
4 connect to +5v
5 digital ground
6 row 0 output
7 row 1 output
8 row 2 output
9 row 3 output
10 column 0 input
11 column 1 input
12 column 2 input
13 column 3 input
14 connect to +5v
15 oscillator connection
16 oscillator connection
17 data valid output
18 beeper output

any help would be greatly appreciated! thanks. here is the links
to the pictures.
http://us.f1.yahoofs.com/users/ea2ad688/bc/front.jpg?bc_tNg9AhZcDWWlC
http://us.f1.yahoofs.com/users/ea2ad688/bc/back.jpg?bc_tNg9A2hLTmjhN

conrad



(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

RE: pins?? - James R. Parish - Aug 13 20:41:00 2002

I lost my notes so I had to go look at my code.

Jameco "Scalper-1" Keypad pin-out:
1 = C0
2 = C1
3 = C2
4 = C3
5 = R0
6 = R1
7 = R2
8 = R3
9 = N/C

The EDE1144 sends an ASCII CHR and here is the translation table:

48 = "1"
52 = "2"
56 = "3"
49 = "4"
53 = "5"
57 = "6"
50 = "7"
54 = "8"
65 = "9"
55 = "0"
69 = "2ND"
70 = "ENTER"
51 = "CLEAR"
67 = "UP ARROW"
68 = "DN ARROW"
66 = "HELP" -----Original Message-----
From: mixman1982 [mailto:]
Sent: Tuesday, August 13, 2002 1:45 PM
To:
Subject: [BasicX] pins??

hi everyone i bought a 4x4 keypad from jameco a while back and i
can't figure out which pin goes to my ede1144 keypad encoder. there
are 9 pins on the keypad and only 8 inputs into the keypad encoder.
can anyone help? i scanned pictures of the keypad to give everyone
an idea of what i am working with. the pin outs for the keypad
encoder are these:

1 rs-232 output
2 baud 0=2400, 1=9600
3 connect to +5v
4 connect to +5v
5 digital ground
6 row 0 output
7 row 1 output
8 row 2 output
9 row 3 output
10 column 0 input
11 column 1 input
12 column 2 input
13 column 3 input
14 connect to +5v
15 oscillator connection
16 oscillator connection
17 data valid output
18 beeper output

any help would be greatly appreciated! thanks. here is the links
to the pictures.
http://us.f1.yahoofs.com/users/ea2ad688/bc/front.jpg?bc_tNg9AhZcDWWlC
http://us.f1.yahoofs.com/users/ea2ad688/bc/back.jpg?bc_tNg9A2hLTmjhN

conrad



(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

RE: pins?? - James R. Parish - Aug 14 10:26:00 2002

I just drafted up a 1" x 2" Printed Circuit Board that affixes right to the
back of the 9-pin header on the keypad. I might get ambitious and make a
few this week if you're interested.

http://www.j-com.net/EDE1144_PCB.PDF
-----Original Message-----
From: mixman1982 [mailto:]
Sent: Tuesday, August 13, 2002 1:45 PM
To:
Subject: [BasicX] pins??

hi everyone i bought a 4x4 keypad from jameco a while back and i
can't figure out which pin goes to my ede1144 keypad encoder. there
are 9 pins on the keypad and only 8 inputs into the keypad encoder.
can anyone help? i scanned pictures of the keypad to give everyone
an idea of what i am working with. the pin outs for the keypad
encoder are these:

1 rs-232 output
2 baud 0=2400, 1=9600
3 connect to +5v
4 connect to +5v
5 digital ground
6 row 0 output
7 row 1 output
8 row 2 output
9 row 3 output
10 column 0 input
11 column 1 input
12 column 2 input
13 column 3 input
14 connect to +5v
15 oscillator connection
16 oscillator connection
17 data valid output
18 beeper output

any help would be greatly appreciated! thanks. here is the links
to the pictures.
http://us.f1.yahoofs.com/users/ea2ad688/bc/front.jpg?bc_tNg9AhZcDWWlC
http://us.f1.yahoofs.com/users/ea2ad688/bc/back.jpg?bc_tNg9A2hLTmjhN

conrad



(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )