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application AVR-Single-Chip-Processors AT90S, ATtiny, ATmega
of ATMEL in practical examples.
The following examples are small applications to test and use these processors practically and to demonstrate their usefulness. All applications were tested, but I cannot guarantee their correct function.
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Audio level meter with an ATtiny24 and a 4 line LCD
Configurable in wide varieties of sensivity, linear and log, etc.
Level meter - Level meter
Tumbling dice with two seven-segment-displays Dice M16 - Dice M16
Infrared receiver and three channel switch, self-learning IR-Rx-Sw IR-Rx-Sw IR-Rx-Sw
Led light chain sequencer with an ATtiny13 ledlight ledlight ledlight
Driving two LED lines and controlling intensity with two potentiometers using an ATtiny13 ledline ledline ledline
Tumbling dice applying an ATtiny13, seven LEDs and a pushbutton, with PCB layout dice dice dice
Digital clock and alarm timer with an ATmega16, 7-segment displays, Xtal control, and much more digiclock digiclock digiclock
All about infrared remote control signals
Measuring IR remote control signals with an ATmega8
Analysing IR remote control signals
IR remote control transmitter with an ATtiny45
IR remote controlled receiver with an ATtiny13
8-by-8 LED matrix with an ATmega16 LED grave led-grave led-grave
Frequency counter with ATmega8, nine modes, 16 MHz xtal Description
fcount_m8_v3 fcount_V03
Eggtimer with an ATtiny2313V as a gift eggtimer eggtimer_asm eggtimer
Stepper motor controller and driver with an ATtiny13 Stepper steppermotor steppermotor
UV-LED array with ATtiny2313 timer UV exposure UV-Timer UV-Timer
Signal generator with frequency and pulse-width adjustment,
normal and inverted digital outputs,
frequency/time/rpm/pulse-width display on LCD,
applying an ATmega8 with ADC channels, Xtal source clock, etc.
RectGen Main program,
LCD routines,
Freq table
Zipped sources
R/2R network for DAC conversion.
Generating sawtooth, triangle and sine wave and playing musical notes with the 10 keys on a STK500.
R/2R network (see diverse links in the text)
SIO controlled digital clock in a 2313.
Could be synchronized with the time normal DCF77, operated on 77.5 kHz in the VLF band in Germany.
Wiring see the Links.
Clock Clock
PCM-encoded remote control signals
in a length from 0.8 to 2.2 ms are decoded
using a AT90S2323 on a small test board
and convert it to a analogue voltage of 0 to 5 Volts.
PcmDec PcmDec PcmDec
Pulse generator
generates exact signals of a desired duration and frequency,
times are controlled by input from an ANSI-compatible terminal program
via the SIO of the chip, e.g. on the STK200 board.
PwgSio PwgSio PwgSio

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