17 Apr
2011
17 Apr
'11
9:51 a.m.
On 17 Apr 2011 at 9:24, Jos Dreesen wrote:
Another reason might be that HP is just too expensive
?
Just 3 years ago I bought a scientific calculater which also does
hex,octal, binary and has all the logic functions. Price : 5 USD
new..... Admittedly no RPN, keyboard less good, but still fully
usable.
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...
--Chuck