Implementation of Transmitter-Receiver System using UART protocol and representation of output in 7-segment LED displays
This repository contains the implementation of a Uart Transmitter-Receiver system, which is a system for serial, 1-by-1 bit, data transmition. In this implementation the characters being transmitted are assumed to be the numbers 1-9 and also the characters 'F', '-' and ' ' (space). These characters are used to transmit 4-character-messages that come from sensors and are represented in the following way: [‘space’|‘-’][‘space’|1-9] [‘space’|0-9] [0-9], where | represents the logical or, eg: '-194', ' -87'. Error message is represented by the message 'FFFF'.
In addition to the transmition system, a 4-digit-display system is designed in order to display the message in 7-segment LED displays. The 4 displays are not simultaneously on when displaying a particular message. They operate one after the other in a circular order in very high speed. This very high speed makes it possible to display a message only using one display driver and still the flickering not being perceived.
The system is lastly expanded in order to add a decoding to the transmitted message for safety reasons. The decoding system is using one encoder and one decoder. The encoding method is simple: If the true representation of a character is the binary x, then the transmitted signal is the binary x + 1. For instance, in this implementation, the character 6 is represented in binary by 0110. The transmitted signal after encoding is 0111.
The total schematic of the system is provided for more clarity:
A more thorough description of the system implementation, along with schematics provided by the simulation tool and results from the testbenches for each component is provided in greek in the Project Report.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent