The TV Bargraph / Zolhasri Ahmad and Mohd Azizan Jaya

The objective of this project is to generate a display on a television screen consisting of a number of vertical columns. The height of each column is proportional to a specific input voltage. The columns maybe upwards (positive) or downwards (negative) from a reference level. This reference may be changed if only positive-going signals are to be processed. (See figure 1.1). This project is called TV Bargraph. The project is to provide a solution to the problem of displaying many variables with good resolution. The TV Bargraph can arise with spectrum analysis statiscal measurements, multi-point measurements of temperature, pressure, humidity, speed, current, voltage or indeed anything which can be converted to a proportional voltage.