I recently got an used TI-89 and I want to connect it to my PC. SilverLinks are pretty much impossible to get in my country, so I'm going to build a serial link and I have some questions.
1. Does it matter if I use 4.7 V or 5.1 V Zener diodes?
2. Is 0.5 W power rating on the resistors and diodes enough?
3. Will cutting a 2.5 mm to 3.5 mm jack cable work for the calculator side? The cable is thin enough to go all the way in.
As a newcomer, I'm not sure if I should post this in Electronics/Hardware Development or Calculator Help.
1. Does it matter if I use 4.7 V or 5.1 V Zener diodes?
2. Is 0.5 W power rating on the resistors and diodes enough?
3. Will cutting a 2.5 mm to 3.5 mm jack cable work for the calculator side? The cable is thin enough to go all the way in.
As a newcomer, I'm not sure if I should post this in Electronics/Hardware Development or Calculator Help.