V1 – One Counter Cruise System
Introduces the basic one-counter cruise system concept with display, comparator, LED indication, and NE555 flashing warning.
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Circuit Explanation
A single CD40110 counter/display driver counts the simulated speed value. The 74LS85 comparator continuously compares the current speed with the selected cruise set speed. Combinational gates derive the green (0–5) and yellow (6–9) range indications, while the NE555 astable stage flashes the red warning LED when the set speed is reached.
Components Used
Schematic Preview
Proteus Project Files
V1 One Counter Cruise System Proteus Project
V1/One Counter.pdsprj
Proteus simulation
One Counter.pdsprj
Proteus 8 Professional simulation project for V1 - One Counter Cruise System.
Open using Proteus 8 Professional.
Circuit Schematic PDF
V1 One Counter Cruise System Circuit Schematic
V1/One Counter.PDF
Circuit schematic
One Counter.PDF
Exported circuit schematic PDF for V1 - One Counter Cruise System.
Truth Tables
V1 One Counter Cruise System Truth Tables
V1/one_counter_truth_tables_updated.pdf
Truth table
one_counter_truth_tables_updated.pdf
Truth-table PDF documenting the logic used in V1 - One Counter Cruise System.
V1 One Counter Cruise System Truth Tables
V1/one_counter_truth_tables.pdf
Truth table
one_counter_truth_tables.pdf
Truth-table PDF documenting the logic used in V1 - One Counter Cruise System.
Word Report
V1 One Counter Cruise System Word Report
V1/One_Counter_Cruise_System_GA1_Report_Improved_Template.docx
Word report
One_Counter_Cruise_System_GA1_Report_Improved_Template.docx
Editable Word report for V1 - One Counter Cruise System.
V1 One Counter Cruise System Word Report
V1/project_v1_ga1_report.docx
Word report
project_v1_ga1_report.docx
Editable Word report for V1 - One Counter Cruise System.
PDF Report
V1 One Counter Cruise System PDF Report
V1/One_Counter_Cruise_System_GA1_Report_Improved_Template.pdf
PDF report
One_Counter_Cruise_System_GA1_Report_Improved_Template.pdf
PDF report for V1 - One Counter Cruise System.
V1 One Counter Cruise System PDF Report
V1/project_v1_ga1_report.pdf
PDF report
project_v1_ga1_report.pdf
PDF report for V1 - One Counter Cruise System.
Limitations & special logic notes
The single counter limits the display range and the invalid-state handling is minimal — values above 10 are not yet fully blocked. These limitations motivated the later versions.