Modify TI-84 Calculator: Access ChatGPT for Enhanced Functionality & Cheats
Learn how to modify your TI-84 calculator to access ChatGPT, download cheat sheets, and more for enhanced exam performance.
Summary of the Video on Modifying the TI-84 Calculator
This video demonstrates how to modify the TI-84 calculator to enable functions such as online chatting, downloading cheat sheets, and accessing GPT models, facilitating unethical practices during exams. Below is an overview of the key points covered in the video:
Objectives:
- Potentially remove the TI-84 from the list of approved calculators for standardized tests.\n2. Create a surprising challenge for engineers at Texas Instruments (TI).\n3. Assist users in passing their calculus exams through custom hardware modifications.
Implementation Process:
The modification primarily involves integrating a Seed Studio ESP32 C3 Wi-Fi microcontroller into the TI-84 calculator. This compact module offers Wi-Fi connectivity.
Data transfer is facilitated through the TI-84’s 2.5mm jack, often misidentified as a headphone jack. The Homebrew community has reverse-engineered the protocol, enabling it to interface with microcontrollers.
Key steps to achieve this modification include:
- Utilizing basic electronic components to illuminate LEDs and activate vibrating motors.\n- Developing a modification that enables the TI-84 to search the web, chat, or download pre-prepared cheat sheets during an exam.
Technical Details:
A significant challenge was addressing the voltage mismatch between the 3.3V supply from the microcontroller and the 5V supply from the calculator’s link port. This issue was resolved using a level shifting circuit.
A custom printed circuit board (PCB) was designed to streamline wiring and enhance the reliability of the modification. On the software side, the TI-84 is programmed to communicate with the microcontroller, which emulates another TI-84 calculator. Interaction with the microcontroller is managed through TI-BASIC commands.
Capabilities of the Modified Calculator:
- Chatting with friends during exam time.\n- Downloading images and cheat sheets from a server.\n- Quickly obtaining answers using ChatGPT.\n- Bypassing exam mode, which restricts calculator functionality during exams.
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