WHAT AM I FORGETTING? • project description:As we leave our homes each day, the three most common items we need to bring with us include our keys, wallets and cell phones.

What am I Forgetting? is a memory aid that helps people remember and locate these critical items. The system is designed around the turning of the doorknob on a home's main door, and serves as a reminder at the point of departure. The system can be programmed for use by multiple people within a household. The system can also be extended for use with additional items users forget.

• use cases:

Alice frequently leaves her house without her wallet, causing her a great deal of inconvenience. With our product, whenever she tries to leave the house without her wallet, the system warns her with a beeping noise. Alice can then look at the token container and sees that the wallet token is glowing red. She can also squeeze the wallet token to locate her wallet.

One day, Ken comes home from work carrying his keys and cell phone, but not his wallet. When he enters his home, a beeping sound notifies him that one of his critical items is missing. Kent looks at the token container, sees the wallet token glowing red, and realizes immediately that his wallet is missing. He decides to go back to work and look for his wallet.

Jane lives alone and has no telephone landline in her rental apartment. One morning, she can't find her cell phone. Instead of searching her wholeapartment, Jane goes to the token container, and squeezes the token representing her cell phone. Her cell phone begins to ring, and Jane is able to locate it right away..

• interaction flow:

1

2

3

• diagram:

TokensSeparate tokens represent the cell phone, wallet, and keys. Each token is made of a translucent, soft material; a force sensor is activated whenever a token is squeezed.

DoorDoorknob is translucent with an embedded LED.

Use case 2

Use case 3

Use case 1

• sketches:

Items keyed to tokens will each have a small gadget attached to them.This gadget will a have small radio receiver to receive an activationsignal and a piezo-electric speaker so that the gadget can respond to a signal from the system transmitter.

Tokens are made of a translucentmaterial so that they can be lit via an internal LED

Each token has a small radio transceiver to sendinput and receive output when squeezed.

The tokens should be 2.5" to4" in length and 1.5" to 3" in width so that they can easily fit inone's hand.

items tokens forms input & output

token & container sketches:

• configuration:

User identifiers: In order to identify themselves, household members who want to use the system need to place an RFID on a personal item they wear every day.Item identifiers: Gadgets are placed on each user's critical items (keys, wallet and cell phone). Gadgets include an RFID, a radio receiver and speaker. The system is pre-configured with 3 item identifiers. Users can use additional identifiers for other items they want to remember.

Tokens: The system comes with three standard tokens representing keys, wallet and a cellphone. Users can extend the system by using additional tokens to represent other items they want to remember.

RFID reader: The system contains an RFID reader installed near the door. The reader identifies the household member, and detects proximity of the appropriate set of keys, wallet and cell phone. The system is pre-configured to detect 3 critical items ((keys, wallet and cell phone), but can be programmed to detect additional items.

Web interface: The web interface is used to add items to the system. As an optional feature, the interface includes a calendaring system, which can be used to specify which days users need which items.

RFID Reader Identifies user and presence of critical items. Sends signals to tokens.