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DIY Calculator
04-09-2019, 03:25 PM
Post: #7
RE: DIY Calculator
(04-09-2019 11:22 AM)Dave Britten Wrote:  
(04-09-2019 09:42 AM)agarza Wrote:  Unfortunately there is very little memory left so making it programmable is not an option.

Hey, if Sinclair can make a programmable scientific calculator with half the ROM of an HP-35, then a 32KB AVR should be no sweat! ;D

Since it's an AVR, I would suggest including a USB programming port (would that model require an external USB-to-TTL chip?) and leaving the Arduino bootloader on it. It would make for a very nice platform for experimentation.

I have no idea how Sinclair did such a feat. I have run out of memory.

You can use the Arduino IDE and program it with an Arduino Uno, usbtiny or usbasp. If you look at the pictures, on the back you'll see there is a 6 pin programming connector.
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Messages In This Thread
DIY Calculator - agarza - 04-08-2019, 11:01 PM
RE: DIY Calculator - Dave Britten - 04-09-2019, 03:09 AM
RE: DIY Calculator - agarza - 04-09-2019, 09:42 AM
RE: DIY Calculator - Dave Britten - 04-09-2019, 11:22 AM
RE: DIY Calculator - agarza - 04-09-2019 03:25 PM
RE: DIY Calculator - rprosperi - 04-09-2019, 05:35 PM
RE: DIY Calculator - Dan - 04-10-2019, 05:31 AM
RE: DIY Calculator - Steve Simpkin - 04-10-2019, 06:38 AM
RE: DIY Calculator - Dave Britten - 04-10-2019, 02:02 PM
RE: DIY Calculator - agarza - 04-10-2019, 09:06 PM
RE: DIY Calculator - Dan - 04-09-2019, 05:40 AM
RE: DIY Calculator - agarza - 04-09-2019, 09:47 AM
RE: DIY Calculator - agarza - 04-09-2019, 05:03 PM
RE: DIY Calculator - agarza - 04-09-2019, 05:43 PM
RE: DIY Calculator - agarza - 04-09-2019, 07:12 PM
RE: DIY Calculator - agarza - 04-09-2019, 08:45 PM
RE: DIY Calculator - rprosperi - 04-09-2019, 10:55 PM
RE: DIY Calculator - agarza - 04-10-2019, 02:20 AM
RE: DIY Calculator - Eddie W. Shore - 04-12-2019, 01:00 PM
RE: DIY Calculator - Maximilian Hohmann - 04-12-2019, 01:54 PM
RE: DIY Calculator - Steve Simpkin - 04-13-2019, 04:52 AM



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