This project gives you a nice and simple scientific calculator using AVR microcontroller. It has 2 keypads as shown in the circuit diagram and the results are shown on the 16×2 LCD display. You can do sin,cos, tan functions using this project. The code is written in Codevision AVR C. You can download the codevision […]
Scientific Calculator using AVR Microcontroller Read More »
Description With this small board you can program most of the AVR ATTiny microcontrollers or you can build your projects to use it in a stand alone application. It can be powered with a 9V battery because it has 5V voltage regulator on it. The voltage regulator can give 1000mA current. The power to the
ATTiny Board For AVR ATTiny microcontrollers Read More »
Here is my home-made kit of ATmega32 microcontroller interfacing. The ATmega32 controller is rich with features like onboard 32kB in-System programmable flash, 1 KB EEPROM, 2KB SRAM, 10bit ADC (8 channel), SPI bus inteface, TWI (compatible with I2C bus) interface, an USART, analog comparator, etc. That’s why I’ve selected it to load my kit with
Make-Yourself ATmega32 Starter’s Kit with LCD, I2C, SPI, RTC, ADC interfaces Read More »
This project can measure capacitance and inductance using the Atmega8 microcontroller and the code is written in Bascom AVR. The limitations of this project is Inductance Range: 0.1?H to 2H Capacitance Range: 1pF to 2.5?F Electrolytic Capacitor Measurement Range: 0.1?F to 30000?F Circuit Diagram: For more details: Capacitance and Inductance meter using Atmega8
Capacitance and Inductance meter using Atmega8 Read More »
I recently obtained a very old mobile phone from a friend. The battery was dead, so I dismantled it and to my surprise found a display with soldered contacts. In other mobile phones the display was connected via a conducting polymerpad, which was extremly difficult to use on selfmade circuitboards. Googling the name of the
LPH7319 controlled via I2C Read More »
This project is used to measure the distance using ultrasonic sensors. The ultrasonic signal passes through the atmosphere to a barrier, which we want to measure the distance. Part of this signal is reflected and travels back to the receiver. The time delay between sending and receiving signals are then determined by distance barriers. The
Ultrasonic range finder using ATMega8515 Read More »
I am presenting one application with the Nokia 3310 LCD: Designing a thermometer using DS1621 temperature sensor IC. DS1621 is 8-pin sensor from Maxim, with temp range of -55 to +125 degree C, which can be interfaced with microcontroller over two-wire serial i2c bus. It has operating voltage range from 2.7 to 5.5v. I’m operating
Thermometer using DS1621 and Nokia 3310 LCD interfaced with ATmega8 Read More »
16×2 LCDs are most commonly used display units in microcontroller based projects. I got much information about LCD, LCD commands, LCD initialization etc from the below link and I hope, it will be very much helpful for beginners. For more Detail: 4 bit interfacing of a 16X2 LCD display to PIC16F877A, Atmega16/32 & MSP430
4 bit interfacing of a 16X2 LCD display to PIC16F877A, Atmega16/32 & MSP430 Read More »
Here is a project for beginners to interface a 16-key (4×4) keypad with ATmega32 using 8-pins i.e. one port of the microcontroller. This is useful particularly where we need more keys but don’t want to spend more uC pins for interfacing. The 4×4 keypad is a standard one available in the market. I’ve used here
4×4 Matrix Key-board Interfacing with ATmega32 Read More »
Using graphic LCD in a project gives it really a good look and flexibility of displaying different characters and shapes. But, the graphic LCDs are quite costly. The NOKIA 3310 LCD provides a really low-cost solution to add a small graphic display into your project and also good for learning purpose. The LCD is SPI
NOKIA 3310 LCD interfacing with ATmega8 Read More »
