TI83 - Arduino TI Calculator Linking Library - Calculadora TExas TI83 9.6kbps Serial

https://github.com/KermMartian/ArTICL

 

https://github.com/jw0k/serial2ti83

serial2ti83

A program for Arduino Uno that makes it possible to connect a TI-83 calculator to a computer

Introduction

This program turns an Arduino Uno board into an adapter between a TI-83 graphing calculator and a computer. In order to use it upload serial2ti83.ino to an Arduino board using the standard Arduino IDE and connect the 2.5mm jack port on the bottom of TI-83 to Arduino according to the following table:

Jack port	Arduino
sleeve	GND pin
tip	pin 2
ring	pin 3

You can now run some linking program, e.g. TiLP and start exchanging data (upload programs, take screenshots, dump ROM, manage variables, etc.). In case of TiLP make sure to go to File->Change Device first and choose GrayLink cable and TI-83 calc.

Optional: before uploading serial2ti83.ino it is recommended to increase the size of hardware serial buffers to make the connection more reliable. Open HardwareSerial.h from you Arduino installation folder (usually C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino) and change these 2 lines:

#define SERIAL_TX_BUFFER_SIZE 64
#define SERIAL_RX_BUFFER_SIZE 64

to:

#define SERIAL_TX_BUFFER_SIZE 256
#define SERIAL_RX_BUFFER_SIZE 256