ATmega16

SPI (serial peripheral interface) using AVR microcontroller (ATmega16)

Interfacing(USB - RS232 - I2c -ISP) Projects / Ibrar Ayyub

There are different protocols for serial communication between two deceives like, USART, SPI, I2C etc. Before selecting any communication protocol, data transfer rate is an important parameter. SPI transfers data at high speed data. AVR microcontroller contains on chip SPI interface. This article will explore the hardware configuration and programming of SPI. Serial Peripheral Interface […]

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How to use fast PWM (Pulse Width Modulation) Mode of AVR microcontroller Timer

PWM Projects / Ibrar Ayyub

This article is in continuation of PWM generation using AVR timer. In the previous article, PWM generation using Phase correct PWM mode is described. However, there are some applications like DAC, power regulation and rectification etc. which require high frequency PWM wave. The PWM generation using Fast PWM mode is suitable for such applications. This

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Phase Correct PWM (Pulse Width Modulation) Mode of AVR microcontroller Timer

PWM Projects / Ibrar Ayyub

Pulse Width Modulation is well known technique for controlling power electronics devices like SCR, IGBT etc. PWM is also used in motor speed controlling. Square wave generation by using AVR timers is explained in previous article. The AVR timers have feature of PWM wave generation as well .This article describes PWM generation capability of AVR

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Waveform Generation using AVR Microcontroller (Atmega16) Timers

Interfacing(USB - RS232 - I2c -ISP) Projects / Ibrar Ayyub

At times we come across applications or situations wherein we need to generate square waves with the microcontroller. The square wave can be generated by programming a pin which toggles between 0 and 1 with a certain time delay. Alternatively, the inbuilt feature of AVR timers can be used in square wave generation. The advantage

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Serial communication (USART) with different frame size using AVR microcontroller

LCD Projects / Ibrar Ayyub

The previous article explains serial communication using 8-bit data transfer. AVR microcontroller also supports serial data transfer with frame size of 5, 6, 7 and 9 data bits. The size of data frame can be adjusted according to application. For example, consider a system that needs to transmit only ASCII codes as data. In this

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How to use External (Hardware) Interrupts of AVR Microcontroller (ATmega16)

Interfacing(USB - RS232 - I2c -ISP) Projects / Ibrar Ayyub

This article introduces the concept of interrupts and the different types of interrupts in AVR Microcontroller (ATmega16). Interrupt as the name suggests, interrupts the current routine of the microcontroller. Microcontroller executes instructions in a sequence as per the programs. Sometimes there may be a need of handling planned and higher priority events instantaneously that might

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How to interface LED with AVR Microcontroller (ATmega16)

Interfacing(USB - RS232 - I2c -ISP) Projects / Ibrar Ayyub

ATmega16 has 32 I/O pins to communicate with external devices.  Before interfacing with external devices, these pins must be cofigured as input or output pin. This article demonstrates the basic I/O operation of ATmega 16 using LEDs. All the four ports can be configured to read an input from some external device or to give

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How to interface keypad with AVR microcontroller (ATmega16)

Interfacing(USB - RS232 - I2c -ISP) Projects / Ibrar Ayyub

Keypad is most widely used input device to provide input from the outside world to the microcontroller. The keypad makes an application more users interactive.  The concept of interfacing a keypad with the ATmega16 is similar to interfacing it with any other microcontroller. The article of Interfacing keypad with 8051 can be referred for detailed

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