Create a burglar-tripwire with the ultrasonic sensor.
Using an Adafruit compass/accelerometer and an 80-decibel alarm, this project prevents thieves from stealing your backpack.
This project uses an ultrasonic sensor to "sense" if the door opens or closes.
Using the RCWL-0516 radar sensor to detect motion.
This is an analog-style digital clock with multiple display states, a 24-hour alarm, a countdown alarm, multiple alarm display states...
This is an alarm for your house that rings when a movement is detected, like when the door is open or when a body walks in front of it.
A temperature alarm circuit with buzzer is simulated in LTspice in order to develop your intuition and also more simply for fun!
It is simple to learn electronics with a RPi and its GPIO Zero Library.
In this article we setup a Particle Photon module to monitor temperature throught the SI7020-A20 temperature/humidity mini module sensor.
This project is for beginners and is great for pranks.
Hear a "beep" if someone gets too close!
Ever lose something because of someone entering your room? if you have, then I will show you how to build a low-cost alarm!
How to build an Arduino-based big LCD clock with two alarms and temperature monitor controlled by IR TV remote.
A simple burglar alarm built using an ATtiny45. You can attach it anywhere and will it will inform when someone tries to steal something.
A device that warns us with light sound and a sign when our plant needs water.
Hello peepz, I created a little laser alarm from a laser Emitter and a Laser receiver. I used the ky-008 laser.
In this project, we will learn how to control (ON/OFF) a buzzer using Google Assistant and IFTTT with the help of Bolt IoT module.
Discover new generation Automated School Bell using Integromat Software.
Use IFTTT to send a notification to your phone when the current drawn on a circuit gets too high.
EncroPi: Read, Encrypt & Store your Data in Real-Time! USB Data Logger | USB RTC | USB Encryption | Based on Raspberry Pi RP2040 | DS3231
Wearing shirts and shorts, but it's 40 degrees outside? Wearing a hoodie and sweats, but it's 103? Never again with a TEMPorary Solution.
If it detects water, the circuit gives an audible alarm.
Here you will find the code to start up with the SW18010P shock sensor. Have Fun !
In this project, I am going to demonstrate how to make your own police siren alarm with the help of the idIoTware shield.
