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Temperature alarm

Thursday, 17 April 2008 19:29 administrator
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Temperature  alarm with  ATMega8 and DS18S20/DS18B20. Set high and low limits with rotary switches
and device will alert you with buzzer and blinking LED's when temperature is out of limits.

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Attachments:
 TemperatureAlarm.zip[C code, hex file, schematic(png and Eagle), fuse settings for PonyProg]157 Kb
Last Updated ( Sunday, 08 February 2009 19:50 ) Read more...
 

Triac Power Regulator/Timer (ATMega8)

Saturday, 12 April 2008 11:07 administrator
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Single-phase, zero crossing power regulator/timer. Can be used for switching on load for a defined time period, controlling power applied to load, or both functions combined. For example: heater control, soldering iron temperature regulation. 7-segment LED display for time/power indication.Bresenham's algorithm used for control signal distribution.
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Attachments:
 Timer/Power regulator[Source code, schematics(Eagle and png picture)]150 Kb
Last Updated ( Sunday, 13 April 2008 17:31 ) Read more...
 

Countdown timer (ATtiny2313)

Friday, 04 April 2008 19:15 administrator
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Simple timer for switching on load for a defined time period.
Set time period, push the START button and timer will turn on for
a defined time period. After time elapses it will turn off automatically.

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Attachments:
 TimerATtiny2313.zip[C code, hex file, schematic(png and Eagle), fuse settings for PonyProg]86 Kb
Last Updated ( Sunday, 13 April 2008 10:15 ) Read more...