Close
0%
0%

Arduino Mystery Box

Learn how to create your own Mystery Box, that will open only by interacting with the three inputs.

Similar projects worth following
Hello!

This is a tutorial for beginners, that will help you create a "Mystery Box" that will only open after using all three inputs (HC-SR04 Ultrasound sensor, Photoresistor, and an NTC Thermistor).

This is a fun 4-step Mystery Box that you make at home, to entertain your friends or family.

You would have to interact with the three inputs of the Arduino in order to open the lock.

The SG90 Servo will only open when all 4 steps are completed.

20170507_220539.jpg

Step 1, after powering the box.

JPEG Image - 3.31 MB - 05/11/2017 at 13:36

Preview
Download

20170507_223536.jpg

The inside of the box, with the SG90 Servomotor and complete wiring.

JPEG Image - 3.01 MB - 05/11/2017 at 13:36

Preview
Download

20170507_220847.jpg

Another close-up of the inside of the box.

JPEG Image - 2.82 MB - 05/11/2017 at 13:36

Preview
Download

20170507_223159.jpg

Right side of the box with HC-SR04 Ultrasonic Range sensor and NTC Thermistor 10kohm.

JPEG Image - 2.35 MB - 05/11/2017 at 13:36

Preview
Download

20170507_223108.jpg

Left side of the box, with the PhotoResistor and the Power supply + Arduino USB port.

JPEG Image - 2.73 MB - 05/11/2017 at 13:36

Preview
Download

View all 9 files

  • 1 × Arduino UNO
  • 1 × HC-SR04 Ultrasonic Range Sensor.
  • 1 × Photo resistor
  • 1 × NTC Thermistor 10kohm
  • 1 × Breadboard (generic)

View all 11 components

  • 1
    Step 1

    Hello!

    This is a tutorial for beginners, that will help you create a "Mystery Box" that will only open after using all three inputs (HC-SR04 Ultrasound sensor, Photoresistor, and an NTC Thermistor).

  • 2
    Step 2

    After gathering all needed items, you can wire them like I did in this Fritzing Diagram:

    For the NTC Thermistor I used a 10k resistor.

    For the Photoresistor I used a 5k resistor.

    You can use regular 220 ohm resistors for the LEDs.

  • 3
    Step 3

    You can position the "sensors" how you'd like it the most in the box, but for me, this was the most easy and effective way.


View all 5 instructions

Enjoy this project?

Share

Discussions

Similar Projects

Does this project spark your interest?

Become a member to follow this project and never miss any updates