Project Versions
Seven development iterations of the cruise speed control system. Each version explores a different counter, display, comparator, and reset-logic approach — all without a microcontroller or PLC.
V1 – One Counter Cruise System
Introduces the basic one-counter cruise system concept with display, comparator, LED indication, and NE555 flashing warning.
V2 – 74LS192 Cruise System
Uses a 74LS192 up/down counter approach with display driver, comparator, green/yellow range logic, and flashing red warning.
V3 – CD4029 Cruise System
Uses CD4029 counter logic to create the cruise speed count with display decoding, comparator warning, and LED range correction.
V4 – Analog Sensor / TC7107 Cruise System
Introduces an analog sensor concept using an analog input stage and display/comparator logic for speed indication.
V5 – 74LS192 Reset Logic System
Focuses on reset and invalid-state handling using 74LS192 counters, display drivers, XOR correction, and reset logic.
V6 – CD4029 + CD4511 Cruise System
Uses CD4029 counters and CD4511 display drivers with carry/borrow logic, XOR correction, comparator warning, and reset logic.
V7 – 74LS90 Completed Cruise System with 4-bit Comparator
Started as a two-display 74LS90 and 7447 counter circuit and was completed with green/yellow logic, XOR/inhibit correction, 74LS85 4-bit comparator, DIP switch set-speed input, NE555 flashing red stage, and reset/limit logic.