Air Raid Siren Timer

INSTRUCTIONS

This is a fully functional Siren timer!!

Currently, its a custom housing. Though, I will make AR Style housing for it aswell.

You can follow the wiring diagram in the WOKWI thingy, or you can look at the pins and where they connect in the code itself.

Put a power strip into the opening.

When connecting the buttons, put one side to the designated pin and the other at GND (ground). I reccomend using a breadboard or a screw terminal to extend the ground from the arduino because you cannot use a different GND. Use a 12v Barrel jack that has the end cut off and split for the power LED.

I DO RECCOMEND BUYING A BOX OFF OF AMAZON TO KEEP IT WEATHER-PROOF LISTED BELOW.

YOU DO NOT HAVE TO PUT THE LEDS THERE EXCEPT THE POWER AND CHOPPER. THE RELAY LEDS ARE FOR SHOW.

MAKE SURE THE LAMP YOU ARE USING FOR CHOPPER IS THE SAME VOLTAGE AS THE VOLTAGE YOU ARE USING FOR THE SIREN. OR, USE A STEP DOWN CONVERTOR.

This timer uses either an arduino mega or uno.

the front glues onto the back.

LEDs:

 https://www.amazon.com/gp/product/B0C8N441HM/ref=ewc_pr_img_1?smid=A86AD06S3OMVQ&th=1

Buttons:

https://www.amazon.com/gp/product/B083JWZL4G/ref=ewc_pr_img_3?smid=A86AD06S3OMVQ&th=1

Relays:

https://www.amazon.com/AEDIKO-Channel-Optocoupler-Isolation-Support/dp/B095YD3732/ref=sr_1_3?crid=1IAQD7AC8HKRW&dib=eyJ2IjoiMSJ9.47hxJqYJ_AJGQnsxdjq9PFcqVAtdLFNgy9T2I5Q__FSTD2LYjJBGKhfst7AQXJM0QTRRKVexoWrlraFR1jkIU7_BG8xsPQ-v1584jEKWoj9ThuVc3oZwQYq8HRt4tiYYjO7HoW1ljVnKrPHTFsLFIZ-f5xjQLNUcHvxne73YDaD83UMlEaNWkjYcYw9ZoL91vf1_RrqnzKSm_7WrKzPm2MYSinqF_BXHxUw5BHZtVO4.vwdNf7w983ZiRVybIzGH3_O12dZv4zmiI2Grk4zHy24&dib_tag=se&keywords=5v%2Brelay%2Bmodule&qid=1775695414&sprefix=5v%2Brelays%2Bmodule%2Caps%2C1418&sr=8-3&th=1

12v Power supply:

https://www.amazon.com/Supply-Universal-Adapter-100-240-Transformer/dp/B0D269PYK9/ref=sr_1_5?crid=9AJZKJPILYJC&dib=eyJ2IjoiMSJ9.1kDYQ8Uutw5QUcKTMwF1DoOmbLM8dUC9YPvJqXJ23bb9m3nVl4Go-UlonT0RjmDmSAmmgRyr9jUakUlU7Km0CJlgK-SMBKzlHz4uHY8TCsm-VF43CDBGr9XKktkMSzS15wPAib2hQY2jpvWLEWeaakGQ6CdXtllSw-WWNrvcSqOcPqnUXuT2oMpOZSQuF8U4RJr5305Z3dg590dqRWUfHipOp9mwKlvs-crq45y2lmY.MgjxLa6l3MW50peyXx9FQJlzLhKIUhQlOZ2D86mnNPU&dib_tag=se&keywords=12v+dc&qid=1775696189&sprefix=12v+dc%2Caps%2C1383&sr=8-5

Box (optional):

https://www.amazon.com/TICONN-Waterproof-Electrical-Enclosure-Off-White/dp/B0B87X944Z/ref=sr_1_3_sspa?crid=JJLK51SYR6UN&dib=eyJ2IjoiMSJ9.E7e6rfi1_kYmJC4ono_F-qf8jgCV0twrZe1NA7FWd-5E-JvIuoEvqYLb1PAomzFB6QonwGyKQAV4fYCpsl0T5ndChc462USsgVBZ4ya-D54N3SdACJbjK7C0N84FyOQ3Tj5mSxXHd3FWtpPjvu40sdYrQel7_k4s_yMQwGPV5jUeyFDSULSBWMW7FFbVYUZCH5fzZQw1jh8EY-k_es-h_0ifVDE24P0glaVJbb0U-McYmXVU9SFydPJtlZRVNidfFsCO4Wen0Zapw5lD-QPltiaC0HWiTwAv-unBHzTv_2k.jkHH9OTUXl-n9ZmSkkyUzKcKDpqaBe5spttUl8ddzMs&dib_tag=se&keywords=outdoor%2Bweatherproof%2Bbox&qid=1775696295&sprefix=outdoor%2Bweatherproof%2Bbox%2Caps%2C154&sr=8-3-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1

Copy the code from here:

 AR:https://wokwi.com/projects/455220028855151617

 AF:https://wokwi.com/projects/455246812798011393

Thanks for building and stay loud!