This project is based on Motorola Microcontroller M68HC11A8. The system Voltage
Reader is used to read the analog voltage in different devices connected to the
controller and display the corresponding digital value.
To simulate this circuit, initially activate Mixed Mode simulator from the
Schematic Editor window. Simulation can be performed by selecting Transient
analysis from Simulation menu.
This project includes microcontroller M68HC11A8, LCD driver (HD44780U), 2-line
LCD display unit, analog voltage sources.
In this project instead of different devices, analog voltage sources are
connected to each pin of the ADC port (PORTE) of Microcontroller M68HC11A8. The
voltage sources connected have different predefined voltage set to it. A LCD
display unit is interfaced with the controller through LCD driver at PORTC. The
controller reads any one of the analog pin, the inbuilt ADC in microcontroller
convert value to corresponding digital value. The digital value is then given to
LCD driver there after it is displayed in LCD display unit.
The source code written either in C or Assembly language can be viewed from the
code editor window.