During high school the only computer I had access to during school days was my beloved TI-84+ graphing calculator. It was a surprisingly enjoyable platform for practicing programming. The built-in TI-BASIC programming editor and simple drawing commands meant that it was easy to create small graphical demos and games, which
https://github.com/jmptable/tiny-asm-copter This is a helicopter game written in AVR assembly for an ATTiny13A connected to a Nokia 3310 LCD and 1 button. Made for the fun of the challenge to fit a graphical game into 1 KB code space and 64 bytes of RAM while running
Turns out it just spits comma separated points out over serial in ASCII. I didn't have the original serial plug so I opened it up and connected an Arduino directly to the TTL serial lines on the board. I wrote a simple drawing app in Processing to play with it,
I figured out how to use raw control of the TI Link Port on a TI-84+ graphing calculator in order to implement some Z80 assembly routines that could talk to an Arduino using regular asynchronous serial. Once I got that working I used it to make this demo. The touch
Lightly edited copy of the original blog post from when I was in high school: This is the PropComp in all its current glory. Future versions will have all this contained in a case under the keyboard, kind of like the Commodore 64, except this will include the screen. The
Rockin' Sesame StreetA project from when I was in middle school. This record player used the motor from a CD drive to spin records, and a tooth pick pick-up. In the photo it's missing the paper cone that I attached to the tooth pick to amplify the sound. The body
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