Drivers for ATmega32 microcontroller implemented in C programming language
- Part of Embedded Systems Diploma class work
The application layer includes various application specific software components that are designed to execute specific set of tasks, as per the use-case.
Implemented Applications:
- Stopwatch: Using 7-segments and buttons with features of pause/resume, reset, and adjust time.
- Moveable Car: Using DC-Motors and buttons with features of move forward, backward, turn left, and turn right.
- LCD Games: Using 4-Bit Character LCD and Buttons
- Calculator: Using 4-Bit Character LCD and Keypad with features of addition, subtraction, multiplication and division. Handled division by zero, float result of division with 6 digits precision, continuous operations with the last answer [rounded], and repeated operations with '=' button.
- Numerical Converter: Using 4-Bit Character LCD and Keypad with features of convert to/from Decimal/Binary/Hexadecimal with simple interactive user interface. Can handle unsigned 8-bit integers.
- Volume Controller: Simulating volume control GUI using potentiometer and 4-Bit Character LCD.
- Fire Fighting: Using LM35 temperature sensor, MQ2 Smoke Sensor, DC-Motor Fan, LEDs, Buzzer and 4-Bit Character LCD with features of Estimate mean filtered temperature, display weather information, start detecting smoke state within certain temperature threshold, Yellow led indication in case of safe heat weather, Red led, buzzer and Auto running fan in case of fire, with configured hysteresis.
- Filtered Temperature: MEAN filtered temperature math library.
A hardware abstraction layer (HAL) is a logical division of code that serves as an abstraction layer between a computer's physical hardware and its software. It provides a device driver interface allowing a program to communicate with the hardware.
Implemented HAL Drivers:
- Led
- Button
- 7-Segment
- DC-Motor
- Character LCD
- Buzzer
- Keypad
- Sensors (Potentiometer, LM35)
MCAL is a software module that directly accesses on-chip MCU peripheral modules and external devices that are mapped to memory, and makes the upper software layer independent of the MCU.
Implemented MCAL Drivers:
- DIO
- ADC