A Braille Interface to the Texas Instruments SR-52 Programmable Calculator.
PENNSYLVANIA STATE UNIV UNIVERSITY PARK APPLIED RESEARCH LAB
Pagination or Media Count:
The Texas Instruments SR-52 programmable pocket calculator has been interfaced with a tactual display for use by a blind graduate assistant. The interacing uses simple, readily available series 4000 CMOS circuitry to convert the contents of the calculators visual display to a self-scanned Braille output. The rate of character display is user controlled. Provisions are included to display the mantissa and exponent sign and calculator display mode. Blanks in the output are eliminated. Author
- Computer Programming and Software
- Human Factors Engineering and Man Machine Systems