Parallel Port Used to Control Stepper Motor

Featured in this project is the control of a stepper motor with its speed, direction, and step size by sending some signals through the parallel port.

Navigation System Based on Sound

The project illustrates how sound is generated based on the direction that the user must turn in order to face the correct direction as it utilizes an ATmega32, a digital compass, and a GPS.

Building Radio Powered by Solar Energy

The project demonstrates the application of solar energy by matching the amount of power delivered by the solar panel to the amount of power required by the radio.

Mailbox Project Powered by Solar Energy

The project aims to use the sun to provide power to a self-sufficient mailbox wherein the number of the house is displayed depending on the level of the battery.

Building the SmartLock Device

The SmartLock pertains to a locking function that prevents automatic retuning despite changing antenna loads as it provides two external controls for the SG-230.

32-Bit Game Console Known as RBox

The RBox is a game console that does not require any PCB but just a crystal, a few capacitors, and resistors while making use of the smallest and cheapest 32-bit CPU to generate sound and 3D graphics.