RPN83P: RPN calculator for TI-83+ TI-84+ inspired by HP-42S

[bxparks]

(11-22-2023 01:32 PM)floppy Wrote:  TI 84 PLUS
This cable is for the connectivity to the PC? https://www.amazon.de/TI-Graph-Texas-Ins...6BXBS?th=1
Or this one ? https://www.amazon.de/Datenkabel-Ladekab...10&sr=8-17

Looks like 2 different types are listed. Not sure which one is the best.

(Wow that German Amazon website is painful to use. Captcha. Cookie authorization taking up 1/2 my screen, which can't be dismissed...)

The first one is a custom TI USB-to-serial cable that plugs into the 2.5mm port on many of the older TI graphing calculators, including the 83+, 83+SE, 84+, 84+SE that the RPN83P is compatible with. Don't buy it new, you should be able get it on eBay for $10-15.

The second one is a standard USB-A to USB-mini-B cable. That works for the 84+ and 84+SE which also have a mini-USB-B port. Many people have a lot of these cables already. If you don't, you should be able to get one from a thrift store for like $1 (or the equivalent in Euros).