Your calculator, online

Plug a TI-84 Plus CE into this computer and it becomes three things: an AI assistant, a maths solver that shows its working, and a chat client. This takes about two minutes, and you can skip any of it.

Nothing is installed and there is no server. The page talks to your calculator over USB and to your AI provider over HTTPS. Whatever you type goes to those two places and nowhere else.

Three apps

These run on the calculator itself. Send them across once and they stay.

◍ GPT Type a question, get an answer on the calculator screen — kept short enough to actually read.
√ MATH Every key gives what is printed on it, so an equation types the way you would write it. Press [alpha] for letters. Answers come back as worked steps.
💬 CHAT Messages between the calculator and this browser. No API key needed. Rooms and multiplayer games are coming next.

Get them onto the calculator

One time only. You need TI Connect CE, which is free from Texas Instruments.

◍GPT.8xp √MATH.8xp 💬CHAT.8xp

Downloads start immediately — they are small.

  1. Plug the calculator inwith the USB cable that came with it. Straight into the computer, not through a hub.
  2. Open TI Connect CEand drag the three files onto the device window.
  3. Launch them through arTIfiCE or Cesium— they are compiled programs, so they will not run from the [prgm] menu on OS 5.5 and later.
No arTIfiCE yet? It is a free jailbreak-free loader for the CE, and it is what lets a calculator on modern firmware run compiled programs at all.

Add an AI key

GPT and MATH need one; CHAT does not. All three providers below have a free tier that does not ask for a card, and you can add as many as you like — each is remembered separately, so switching between them later never means pasting one twice.

Keys stay in this browser. They are sent to the provider they belong to and to nobody else — never uploaded to us, even if you sign in.
Add keys on your account

Connect and go

That is everything. From here on it is two clicks.

  1. Start an app on the calculator— GPT, MATH or CHAT, through arTIfiCE or Cesium.
  2. Press Connect in the consoleand pick the calculator from the list your browser shows. It only asks once.
  3. Type on the calculatorand the answer comes back on its screen. The console shows both sides of the conversation.
Later: no computer at all. A XIAO ESP32-S3 bridge on the link port has its own WiFi and camera, so the calculator works on its own. Bridge setup is where that gets configured.