Wooden Digital Clock is controlled over WiFi
LedMcu

Wooden Digital Clock is controlled over WiFi

androkavo @ instructables.com build a nice looking wooden clock that is able to show time, temperature, humidity and also it has alarm. The clock is controlled through your web browser using wifi connectivity and it also has a vibration sensor to stop the alarm. Wooden Digital...

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Alarm System Powered By Arduino
ArduinoDIYLCD/OLED

Alarm System Powered By Arduino

Dejan Nedelkovski had built an Arduino security and alarm system project that uses an ultrasonic sensor for detecting objects and a buzzer for notification. Components needed to build this simple system are: Arduino board, LCD display, 4x4 keypad, ultrasonic sensor and buzzer. The...

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8931
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Adjusting clock with alarm, hygrometer & thermometer on 1.8″ ST7735 display
Arduino

Adjusting clock with alarm, hygrometer & thermometer on 1.8″ ST7735 display

Nicu Florica blogged about his adjusting clock with alarm, hygrometer and thermometer on 1.8″ ST7735 display: I use feature from article Another adjusting clock with alarm & thermometer using DS3231 on 1.8″ ST7735 display and change reading internal temperature of DS3231...

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Temperature alarm for boiling milk
McuTest/Measurements

Temperature alarm for boiling milk

Domen Ipavec shares his temperature alarm for boiling milk. Temperature alarm uses an Atmel attiny841 microcontroller, DS18B20 high temperature waterproof temperature sensor from adafruit, 2x16 HD44780 LCD and a buzzer to do its job. Anyone who has ever boiled milk on the stove...

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4488
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Arduino Proximity Alarm
Arduino

Arduino Proximity Alarm

Lucas Reed @ instructables.com has build a proximity alarm using Arduino and an ultrasonic sensor from Parallax. If a nearby object is approaching then the alarm will sound and an RGB LED will light up. He writes: An ultrasonic rangefinder and Arduino microcontroller will check for...

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Arduino – Laser Tripwire Alarm System
ArduinoLaser

Arduino – Laser Tripwire Alarm System

In this instructable, we will be building a laser guided tripwire alarm system using a SainSmart Leonardo R3 development board. Arduino - Laser Tripwire Alarm System -...

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5975
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Wake-U-Up System
Mcu

Wake-U-Up System

Zhiyong Hao and Zhuo Chen from Cornell Univercity build A PIC-based Alarm clock system that is different from most alarm clocks known. This project is aimed to design a ‘Sleep and Wake-up Assistant’. Different from a normal alarm clocks which can only make noise, this alarm...

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3970
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ATmega Alarm Clock & Thermometer Humidity meter
Mcu

ATmega Alarm Clock & Thermometer Humidity meter

nitram147 @ instructables.com has build a ATmega based alarm clock with temperature and humidity reading. Sensor used is DHT11. First, let me introduce you my project. I made an Alarm clock with extended functionality & thermometer and humiditymeter. Everything started when my...

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