Tag: Alarm

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...

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...

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 -...

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...

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...

simpleiothings.com has build a Wifi connected smoke alarm using ESP8266 module: This tutorial will teach you how to build a Wifi Smoke Alarm Notifier for about $10 dollars. You won’t have to code anything, and you won’t have to solder or buy expensive electronics equipment. Any...

This reference design is an anti-drowsiness alarm, which aims to keep the drivers alert by disrupting one’s drowse. According to the study by U. S. National Highway Traffic Safety Administration (NHTSA), drowsy driving is the primary contributor of at least 100,000 auto crashes a...

Markus Gritsch posted pictures and code of his PIC24 bedside table alarm clock: Another year, another clock, but for the first time for my alarm clocks. I am not using an MSP430 but a PIC24 instead. Standby current is with 5.5 µA only slightly higher than that of my MSP430 based...