Abstract:
A remote-controlled digital electronics
trainer device has been designed and implemented
based on ATmega328 QFN microcontroller, logic gate
integrated circuits (ICs) and an infrared (IR) detector.
On the board face are light emitting diodes (LEDs) that
indicate logic state of various logic inputs and outputs.
A remote transmitter completes the set up and is used to
send infrared signals to the receiver. This prototype
presents a novel approach of designing teaching aids to
help reach a larger number of learners when
demonstrating certain concepts during learning
sessions. The wireless control integration in the device
enables a technologist or a lecturer to demonstrate to
learners how logic gates respond to logic inputs by a
press of button on the transmitter. Various
combinations of inputs have been tested and it’s been
found that the board has a maximum power
consumption of 1.85W. It’s expected to solve the
challenge of having many learners and less teaching
aids especially in developing countries. The design
procedure, implementation, testing and verification of
the device is discussed in this paper.
