Binary displays are very popular for clocks so it looked like there a gap waiting to be filled in the measurement area with an instrument that displayed its results in a Binary format. As result I decided that a DVM would be a suitable project to be given a Binary makeover. The Microbit has the
Binary DVM Using Atmega Read More »
Introduction The goal of this project was to assist the user in learning the proper technique for a physical exercise, in our case a dumbbell bicep curl. As our understanding of biology and anatomy improves, the design of physical exercises is improved by the application of scientific principals and experimental results. For each exercise there
Haptic Exercise Coach Using Atmega644 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 one from my earlier project. The LED shown
4×4 Matrix Key-board Interfacing with ATmega32 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 it here at 3.3v, same as the one
Thermometer using DS1621 and Nokia 3310 LCD interfaced with ATmega8 Read More »
video USB RFID Reading Keyboard Demo https://youtu.be/IdGpSafJISI This is a step by step tutorial on how to build a RFID tag reading USB keyboard using the USnooBie. This tutorial is provided with the project files. The code files are heavily commented with references to relevant documentation. Watch the two part videos below to see how to build and
USB RFID Reading Keyboard using USnooBie using Atmega Read More »
RFID is the craze, found everywhere – from inventory systems to badge ID systems. If you’ve ever been to a department store and walked through those metal-detector-looking things at the entrace/exit points, then you’ve seen RFID. There are several places to find good information on setting up RFID, and this instructable focuses on installing the Parallax RFID reader (Serial TTL)
AVR/Arduino RFID Reader with UART Code in C using Atmega Read More »
Hello Friends, In this tutorial we will make a “Digital Stop Watch” using an AVR ATmega8 Microcontroller. This will help you learn many concepts like Multiplexed Seven Segment Display Interfacing Using AVR Timers Using Interrupts And many others too. The code is written in C language for avr-gcc (WinAVR) . Steps to Build the “Digital Stop Watch”
Digital Stop Watch with ATmega8 using microcontroller Read More »
•Low power •EEPROM memory for autonomous operation, 16 bytes available for general purpose use. •Low cost This device provides three channels of 8 bit pulse-width modulation. Output pulse duty cycle ranges from 0 to 255/256 in 255 steps. DACs may be loaded by the DS interface. DAC values may also be copied into the on-chip EERPOM
3 channel, 8 bit EEPROM DAC with DS interface using ATtiny12 microcontroller Read More »
Driving a shift register using an AVR chip’s built-in hardware is really quite easy. Most of their offerings have an SPI module, or Serial Peripheral Interface. A shift register is exactly that, a peripheral device that communicates via a serial line. All we need to do is hook up our connections and use a few
How to drive 595 shift registers with AVR hardware SPI using ATmega168 microcontroller Read More »
Driving a shift register using an AVR chip’s built-in hardware is really quite easy. Most of their offerings have an SPI module, or Serial Peripheral Interface. A shift register is exactly that, a peripheral device that communicates via a serial line. All we need to do is hook up our connections and use a few
How to drive 595 shift registers with ATmega168 Read More »
