ICStation team of research and development department have made this project about the human body induction alarm .It uses DC5V voltage to work. When someone is appearing in the inducing area of infrared sensor and the whole system will use both sound and light to alarm. The inducing distance is 7m.And it is a simple and cheap alarm which is suitable for a protection against burglars to home, office, warehouse and laboratory.
Features of human body induction alarm :
1.When the hardware initializes, the buzzer will sound and the LED lights will flicker.The whole process keeps for 3-5 seconds
2.If there is no one appearing in the inducing area of infrared sensor, the buzzer will not sound and the LED light will not flicker.
3.If there is someone appearing in the inducing area of infrared sensor, the buzzer will sound and the LED light will flicker.The alarm of both sound and light will keep for 5 seconds.
4.If there is someone appearing in the inducing area of infrared sensor and remain still, the alarm will stop after 5 seconds of sound and light alarm.And only when the human body is moving during the inducing area of infrared sensor and then will trigger the alarm again.
Step 1: Components list
3.Highlight LED light emitting diode
4.Human Infrared Sensor Module
5.Active Buzzer Module for Arduino
Step 2: Hardware schematic diagram
Step 3: Hardware making tutorials
Connect +5 power and GND to bread board. The red jumper wire uses as power line and black jumper wire use as ground wire.
Step 4: Put the highlight LED emitting diode and pin header on the bread board
Step 5: Connect 2 PCS 3P Dupont Line to the buzzer module and human infrared sensor module
Step 6: Connect the buzzer module and human infrared sensor module to the bread board
Step 7: Connect the the signal end
Connect the the signal end of highlight LED emitting diode, buzzer module and human infrared sensor module to the Arduino board
Step 8: Connect the power end and ground wire end
Connect the power end and ground wire end of the components to the positive and negative pole of bread board
Step 9: The video to show the effect
Do you want to show your DIY and want to share your great idea with others?
Or you have many problems about electronics that need to be solved.
Our purpose is to help you to learn more about electronics.
If you have any question, please visit our BBS: