🚦 This is a prototype circuit for an intersection(crossroads) roundabout traffic light system. The inputs are the sensors, i.e. infrared sensors that detect the presence of vehicles, plus a timing system. The heart of this circuit the micro-controller which coordinates all the activities.

➕➕ Arithmetic operations in most machines are performed in the ALU whereby logic gates and flipflops are combined so that they can subtract, multiply, and divide binary numbers. This circuit only implements the addition part, on four bit digits

💡 A circuit that is used to control a room lighting automatically depending on the time of day, whether day or night. It uses an LDR(Light Dependent Resistor) that varies the resistance depending on the enviroment's light intensity, and thus controls the room light

A simple yet complicated design of the infrared light transmitter circuit. Consist of a 555 timer and an IR LED to emit the IR signal

Programs I learned in first semester

This is a simple circuit that will blink the LEDs in regular time period. It is made up of a series of Bi-Color LEDs which are driven either by a 555 timing circuit or by a PNP transistor interchangeably.

This is a 10V and 5Amp current rating linear power supply with protection circuits.

⏱ A counter whereby each flipflop output drives the CLOCK input of the next flipflop. It is asynchronous in that the flipflops do not change states in exact synchronism with the applied clock pulses. Its counts are descending

My supervisor didnt what me to just a buy a receiver in the market🙅‍♂️ and use it here and there.. He wanted me to design it, and heres's the design plus the documentation

〽Basically a circuit used to check continuity in a wire connection or a device, this can save you a lot of headache if you are normallly into hardware wire connections

➕➖ Arithmetic operations in most machines are performed in the ALU whereby logic gates and flipflops are combined so that they can subtract, multiply, and divide binary numbers. This circuit only implements the addition part and subtraction on four bit digits