Skip to main content

13. Alarm device using Mercury Tilt switch

Mercury Tilt switch alarm is really useful when it comes to security purposes as it enables the easy detection of orientation or inclination. Examples include:
  • Used in vehicles so that it alerts others when the vehicle gets jacked up, for stealing wheels and towing.
  • Can be used in valuable items in places like museums, so that the alarm is triggered when it is lifted.
In this project, the Arduino Uno R3 will be programmed in such a way that a buzzer and red LED will light up when there is a change in orientation, and a green LED will light up when the mercury tilt switch is in correct position.

So how does a mercury tilt switch work?
The switch is positioned with respect to gravity forces so that the mercury moves away from the contacts so that the switch is open. When there is an inclination or any slight differences in its orientation, the mercury ball rolls in the tube touching both contacts and closing the switch.

Supplies:

  • LED - Red and Green
  • Resistor - 220 Ω (x2)
  • Mercury Tilt switch

  • Buzzer - Active
  • Arduino Uno R3
  • Solderless Breadboard - Mini
  • Jumper Wires - Male-to-Male [10 cm] (x13) | Male-to-Female [20 cm] (x3)

  • Jumper cables - Female-to-Female [70cm] (x3)
  • 9V battery
  • 9V Battery connector

Setting up your hardware






Connections:

  • Mercury Tilt switch - D3
  • Cathode (LED) - Ground (GND)
  • Anode (Red) - D6
  • Anode (Green) - D5
  • Buzzer - D4

Coding

Final Look

Comments

Post a Comment

Popular posts from this blog

51. Buzz wire game using Arduino

Hello everyone! This is my first Arduino project in 2020 and it is going to be a fun and simple project. You would have heard of the Buzz Wire, a steady hand game, and today you will be learning to make one using Arduino. Hardware components used in this project Arduino Nano USB Type A to mini B cable (for Arduino Nano) Solderless Breadboard - Mini and Full-size LEDs (x2) - Green and Red Resistors (x2) - 220 Ω  Active Buzzer module (KY-012) LCD display module with I2C interface - 16x2 Male-to-Male Jumper wires (x4) - 10cm Female-to-Male Jumper wires (x5) - 20 cm Jumpers (x5) - to reduce the usage of wires Copper wire  Tape (or any form of insulation)  Setup Your hardware setup must look somewhat similar to the ones in the images above. The beginning and end of the copper wire maze must be taped to prevent conductivity between the wire loop and maze. Connections LCD display module with I2C interface GND - Ground VCC - 5V SDA -...
Post a Comment
Read more

71. Buzz Wire Game ( Version 2.0 ) using Arduino

Hey Everyone! I hope that everyone's safe during this pandemic. Today I am going to explain you about the second version of my Buzz wire game. People who are bored of staying indoors can find this game pretty interesting and fun to play.  If you are a beginner, you can start off with my first version of this project :  51. Buzz wire game using Arduino   Hardware components used in this project Arduino Uno Solderless Breadboard (x2) - Full/ Full+ LCD display module with I2C module - 16x2 Potentiometer - B20K Push-buttons (x3) Resistor - 220 Ω Active Buzzer module (KY-012) LED - Red Copper Wire - 19/ 20 gauge thick Male-to-Male Jumper wires - 10cm and 20cm Wire - Long enough to connect the loop of copper wire to ground Other tools required for this project Cutting pliers - To cut the right amount of copper wire Round-nose pliers - To bend the copper wire and make a maze and loop Hardware setup Connections Wire Maze - D2 Wire loop - Ground (GND) B20K Potentiometer S - A0 (+)...
1 comment
Read more

70. Arduino Stopwatch and Timer

Hello everyone! Today I am going to explain you about making an Arduino Stopwatch and Timer, which can be used for time based projects. Read on further to learn more about this project. Hardware components used in this project Arduino Uno USB Type A/ B cable Solderless Breadboard - Full+ LCD display module with I2C interface - 16x2 Potentiometer - 10K Push-buttons (x5) Active Buzzer module (KY-012) LED - Red Resistors (x6) - 10kΩ (x5) and 220Ω (x1) Male-to-Male Jumper wires - 10cm and 20cm Jumpers - to reduce the usage of wires Hardware setup Connections 10K Potentiometer S - A0 (+) - 5V (-) - Ground (GND) Active Buzzer module S - D7 (+) - 5V (-) - Ground (GND) 16x2 LCD display module with I2C interface GND - Ground VCC - 5V SDA - A4 SCL - A5 Push-buttons (+) - 5V (-) - Ground (GND) S - D2, D3, D4, D5, D6 Coding Now, I will explain you about how this real-time project works and you can figure out the coding by this idea.  Push-buttons and their functions D2 - Set Countdown timer D3...
Post a Comment
Read more