Generic Calculator Shield for Arduino Photo-journal

[Maximilian Hohmann]

Hello!

Looks promising! Forget about the ugly LCD and stick with LEDs :-)

(03-11-2015 07:20 PM)MarkHaysHarris777 Wrote:  Should you want to, a larger display can easily be made with more digits... just add more seven segment display chips and an equal number of 273 chips.

Have you looked at the max7219 display multiplexer? With a single chip that only needs three lines from the arduino you can drive an 8-digit seven segment display. (For example: http://www.ermicro.com/blog/wp-content/u...219_00.jpg) Or an 8 by 8 dot LED matrix (less than 3$ on eBay directly from Hong Kong, shipping and multiplexer chip included...).

Regards
Max