17 Apr
2011
17 Apr
'11
10:19 a.m.
On 4/17/11 12:51 PM, Chuck Guzis wrote:
A couple of years ago, I considered making my own
modern version of
the SR-22 (unique among hex/octal calculators because it also does
floating point in hex and octal). I've got a pile of nice backlit
LCDs here that would do wonderfully; microcontrollers are numerous
and cheap, but I came up against a wall looking for a high-quality
keypad with, say, 25 or 30 keys...
Keypads are tough. :-( Several years ago I needed a membrane keypad
for a commercial design, and I found a good company in Florida who did a
very good job on them. They're still...membrane keypads, though. Eeew.
-Dave
--
Dave McGuire
Port Charlotte, FL