Project Contributors

Adam Lawrence (Section B)

Andrew Yoder (Section A)

Kyle Gale (Section A)

The mbed safe is a safe that takes advantage of the many available sensors and devices that work with the mbed. The safe itself is a wooden box, but the features included help make it more than just a secure holding area for possessions. Below is a list of devices and the features they are used for.

Devices & Features

• Temperature Sensor
  • The temperature sensor is placed inside the safe, so that you will know if your possessions are in a safe temperature range
• Adafruit Bluefruit Bluetooth Chip
  • This allows the user to control the safe in every way, but with the convenience of your smartphone
• Retractable Display shade
  • Using a DC Motor and a pulley system, the mbed safe allows the owner to display or hide their locked up possession.
• Touchpad Interface
  • This lets the user to set their combination as well as lock and unlock the safe
• Lock-style Solenoid
  • The most important feature of the safe. The solenoid features quick lock technology that will only allow the safe to be open for a second at a time.
• Pushbuttons & LCD
  • Let the user know the state of the safe (locked or unlocked), safe temperature, and the time.

Wiring Layouts

Temperature Sensor

Temperature Sensor Page

Touchpad

Touchpad Sensor Page

Solenoid

Solenoid Page

Solenoid wiring diagram

The solenoid needs a 9 or 12 volt power and a relay in order to work.

H-Bridge

H Bridge Page

The hbridge attaches to the DC motor

Bluetooth chip

Bluetooth Chip Page

uLCD

uLCD Page