Download the test program with driver: i2cm030710F.asmI had been putting off writing a driver for some 24LC64 and 24LC256 EEPROMS I was thinking about using, when I came across a temperature logger application written by Sean Ellis. The Temperature logger was posted on on www.avrfreaks.net on January 10, 2002, project ID 49. The original application […]
EEPROM Driver for AVR with RAM using ATtiny15 microcontroller Read More »
This technique uses digital I/O pins to multiplex analog voltages into an analog input on the microcontroller. The method is most suitable for signals that do not need to be sampled frequently and it may be extended to accommodate a large number of inputs, though for a large number of inputs, the use of a
Analog Multiplexer using AVR microcontroller Read More »
Described are the waveform capture method, example firmware and hardware designs. This material formed the basis of an article that was first published in the October, 2003 issue of Circuit Cellar magazine. The only components added to the operating Atmel AT90S2313 circuit (one capacitor and two resistors) to allow waveform sampling with < 1 microsecond resolution
PWM Waveform Capture using AVR microcontroller Read More »
Downloads: Assembler source deco030511C.asm AVR Studio hex file is deco030511C.hex Overview This circuit employs a synchronous demodulator to separate a 1 KHz signal from noise and measures the amplitude of the 1 kHz signals once a second at about 60 microvolts per count then sends the measurements via an RS-232 interface for further
1 KHz Synchronous Detector using AVR microcontroller Read More »
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
Morse Code Alarm Clock using ATtiny2313 microcontroller Read More »
Data from Port0 7447 entegresinde and 7-segment displayreaches ‘ s.7447 -integration mikrodenetleyiciden from binary code to show in the 7 segment displayis used. So when it comes to 0000 a, b, c, d, e, f LEDs lights up g edi fireproof.7 segment displayis connected in parallel to each other ‘ s.Using the same data path to the parallel 7 segment display 7-segment display at
89C517 Segment Display using the Digital Time Read More »
The assembly code given here was written to see what it would take to make an AT90S1200 generate 8 channels of proper PWM. In this case, by proper, I mean with the maximum high frequency content consistent with the needed duty cycle and give clock. Take a look at the scope shots below and notice
8 Channel PWM using AVR microcontroller Read More »
About AVR Programmer This simple AVR Programmer will allow you to painlessly transfer hex programs to most ATMEL AVR microcontrollers without sacrificing your budget and time. It is more reliable than most other simple AVR programmers available out there and can be built in very short amount of time. AVR programmer consists of in-circuit
AVR Programmer with ATMega8-16 Read More »
Original Atmel micro controllers to use the at series with a good example of ds1302 ds18b20 circuit 2 × 16 lcd indicator can be set with 4 buttons on The first button press and a bout at 2 minutes (time) setting with the buttons 2 and 3 going through after going through the first process tekrarlıyorsunuz
AT89C52 DS1302 DS18B20 LCD On Time-Temperature Read More »
Digital Capacitance Meter This is a simple capacitance meter which can measure capacitance value easy. There are some measurement methods for capacitance, at one time the capacitance was measured with a impedance bridge or a dip meter. Recently typical capacitance meters can measure capacitance and some additional characteristics from current vector by applying AC voltage
Capacitance Meter using AVR microcontroller Read More »
