This is an nspire port of WP-34s calculator software.
Var for keymap.
To learn to use WP-34s, read its official manual: http://sourceforge.net/projects/wp34s/files/doc/
2.4″ SPI TFT with a resistive touchscreen. SPI running at 62.5Mbps.
Unfortunately, The Raspberry Pi is just too thick, otherwise it would be fun to build a calculator around it.
4 months ago, critor released mySpire(http://www.cncalc.org/forum.php?mod=viewthread&tid=9441) which allowed modification of nspire CX/CM’s boot splash screen. Since the image itself is signed, there is no way to change the image except modify its position, size, etc.
However there is still a workaround. It’s possible to use third-party payload to display extra things on the screen. So here it is.
Present from Silicon Labs! Guess whats inside?