Ti-83 Intervalometer.
What do you need to take a time-lapse video using your SLR? An Intervalometer. But what if you don't have the time/skills necessary to build one? You just want something quick and cheap. Do you have a Ti-83[84] calculator? Well if you do then you can easily rig up a simple intervalometer using your camera, a connection cable and your SLR. Just follow along.
1 - Depending on your calculator, this process might be a little different. The following directions are for the Ti-83+.
1) Turn on your graphing calculator (duh)
2) Press the PRGM key
3) Press the Right arrow twice to highlight the tab at the top titled "New"
4) Press ENTER
5) Enter in a name (I used "Camera")
6) You are now ready to insert the following program. The functions prompt, while, for, and end can be found by pressing the PRGM key again. The function Send has to be selected by press 2nd -> 0 (catalog). Here is the program: : Prompt A
: While 1
: For (H,1,A,1)
: End
: Send(A)
: End
2) Press the PRGM key
3) Press the Right arrow twice to highlight the tab at the top titled "New"
4) Press ENTER
5) Enter in a name (I used "Camera")
6) You are now ready to insert the following program. The functions prompt, while, for, and end can be found by pressing the PRGM key again. The function Send has to be selected by press 2nd -> 0 (catalog). Here is the program: : Prompt A
: While 1
: For (H,1,A,1)
: End
: Send(A)
: End
*Note* "A" is the duration between shots. If you set "A" to 100, the camera will take an image every second.
Connect your Ti-83 connection cable from your calculator to the remote plug on your camera.
3 - Shoot.
After you have set up your camera and adjusted your settings for the shot run the program.
