EDF Cell Stretcher Controller User Manual
Contents
1. List of Figures Features e one e two2. Cell Stretcher Controller User Manual BU Electronic Design Facility http edf bu edu ove Cursor D urson Left 2 pee Ae ght NE Figure 1 Description This Cell Stretcher Controller manipulates the mechanical movements of the cell stretcher apparatus by controlling the timing of the apparatus s motor To operate the controller the user must input two time interval values Each of these values directly correspond to the amount of time that will elapse when the apparatus is in either a relaxed or contracted state This design is based on the AVR MT 128 development board from OLIMEX Ltd for the ATMEGA128 microcontroller Controls see Figure 1 A Power the on off toggle switch energizes the controller B Increment this button increments the numeric value under the blinking cursor C Decrement this button decrements the numeric value under the blinking cursor D Move Cursor Left this button moves the blinking cursor to the left E Move Cursor Right this button moves the blinking cursor to the right F Mode this button changes the mode of operation G Motor Enable this toggle switch enables the motor to operate Modes of Operation Set A The user can edit time interval A while in this mode The first row displays time interval A in minutes seconds and tenth seconds MM SS T Increment Decrement and Move Cursor Left Move Cursor Right buttons are enabled in this mode Set B The user can e
3. dit time interval B while in this mode The second row displays time interval B in minutes seconds and tenth seconds MM SS T Increment Decrement and Move Cursor Left Move Cursor Right buttons are enabled in this mode 00 0 31 5 Set B Run The user can enable the motor and run the cell stretcher while in this mode Increment Decrement and Move Cursor Left Move Cursor Right buttons are disabled in this mode Operation 1 Plug the 12V DC power supply into the controller unit 2 Attach the cell stretcher apparatus to the controller unit with the supplied cable 3 Turn the controller unit on by switching the power toggle switch 4 Wait for the motor to move to the initial position 5 While in Set A mode adjust time interval A by using the Increment Decrement and Move Cursor Left Move Cursor Right buttons Press the Mode button to enter Set B mode While in Set B mode adjust time interval A by using the Increment Decrement and Move Cursor Left Move Cursor Right buttons 8 Press the Mode button to enter Run mode 9 While in Run mode enable the motor by switching the Motor Enable toggle to the upward position to activate the cell stretcher 10 While in Run mode disable the motor by switching the Motor Enable toggle to the downward position to deactivate the cell stretcher 11 To change the time A and time B values press the Mode button to enter Set A mode Continue to step 5 NO Diagrams List of Parts
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