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Real Time Clock/Calendar/Alarm with Interpreter for battery backed-up and battery powered operation with DS interface using ATtiny12

Based on the Atmel ATtiny12L-4PI microcontroller -A real Time Clock/Calendar for less than US$1.50 in moderate quantity.   This is the timekeeping test circuit. It includes a one-transistor circuit to switch in the 5V power supply when present and drop back to the 3v battery the rest of the time. That loop of blue wire-wrapping wire is a lariat used to quickly and easily pull the chip out of the socket ...

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Dutchtronix AVR Oscilloscope Clock using Atmega328 microcontroller

Hardware features:   Connects to your analog scope in X-Y mode using BNC cables or probes (1x, 10x) Uses the Atmel AVR Atmega328p with 32KB flashmemory On board 5V power regulator for use with user provided wall adapter (8-15V DC center positive) Power plug (5.5mm outside diameter) included On-board Real-Time Clock with 32.768kHz crystal and battery backup: this clock won't lose time! Digital to Analog ...

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Morse Code Alarm Clock using ATtiny2313 microcontroller

Morse Code Alarm Clock Modification (Almost) Trivial application of an AT90S2313 or ATtiny2313 in an alarm clock to change the alarm from "BEEP BEEP BEEP BEEP BEEP BEEP BEEP BEEP..." to "WAKE UP" in Morse code. This was designed in response to a request and is in daily use Downloads (Updated 5 December, 2004) AVR Studio Assembly Source: morclk041204A AVR STudio Hex file: morclk041204A.hex Overview The speak ...

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Nixie Clock with AVR using ATmega48 microcontroller

Introduction:  This is the hardware and source code for an Atmel ATmega48 based four digit Nixie Tube Clock. Description: This was my second Nixie clock project. I wanted something a little smaller / cheaper / simpler then my rather large B-7971 clock. I will post the design for that one of these days. I was trying to simplify everything. And basically wound up with a one chip solution, ... the micro itself ...

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Atmel atmega128 clock ds1307 tda5410 hard disk using atmega128 microcontroller

Previously called " Corrupted HDD Evaluate under the heading "corrupted hard disks to evaluate the application, I mentioned a couple of hours on the web projects I had used it with emery hardisk hours now, but quite professional and all of the shared resources, shared project Circuit atmel ATMEGA 128 rtc ds1307 based on the time and is integrated with other active tda5410 dc motor drive. In addition, part o ...

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AVR Music Player with Alarm Clock using AT90USB1286 microcontroller

This music player project built based on AT90USB1286 microcontroller. It uses VS1033D music decoder which integrates music file decoding and digital-to-analog output. Other main part including 16×2 character LCD display, ST7066/HD44780 compatible, using 3.3V instead of 5V and DS1307 real time clock. By finishing this project you can understand the communication between the microcontroller, memory, computer, ...

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AVR assembly language

What is an AVR ? First of all AVR stands for: Advanced Virtual RISC, the founders are Alf Egil Bogen Vegard Wollan RISC (also forms AVR). An AVR is a small microcontroller (chip, IC) which is switching digitally (controller) by means of so called i/o's (input/output pins) The i/o's do all the digital switching. The AVR's used on this website are 8-bit AVR's, meaning 1 byte (1 byte = 8 bits) width working re ...

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