Adesso NUSCAN 3200 series User Manual download pdf (Page 10)

Shake and Bake:

Preliminary Design Report

October 12, 2011

Keypad

The keypad takes input from the user, who chooses the desired ingredient and

measurement combinations, which are then sent to the microprocessor.

Input Power 5 V DC, .5 mA

Mechanical signal from user pushing keypad buttons

Output Digital signal to microprocessor 0-5 V DC, 0.5 mA

Scanner

The scanner reads barcodes that contain recipes (combinations of ingredients and their

corresponding measurements) and sends this information to the microprocessor.

Input Power 5 V DC, 25-80 mA

Values encoded in barcode provided by user

Output Digital signal to microprocessor 0-5 V DC, 0.5 mA

Switch

A mechanically operated switch is the means by which the user tells the device to begin

dispensing. Each container has its own switch which, when engaged, connects the corresponding

motor to the power supply. If the microprocessor has sent a signal to the motor at this point,

engaging the switch will cause the motor to begin rotating.

Input Power 12 V, 82 mA

Mechanical manipulation by user

Output 12 V, 82 mA to motor (each)

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 43 44

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Adesso NUSCAN 3200 series User Manual Page 10