User's Manual

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< ResponseCard XL >

1. Introduction

It is a part of educational system, students using this system can transmit answers

though it to PC remotely. Then a receiving part accepts the signal form the each

student and passes it over to a PC. Finally, the PC saves the answers and reconstructs

them.

2. Remote Keypad

It has a unique ID. It can be operated in the Presentation & Test mode.

In case of Presentation Mode, once if the number key on the keypad is selected, it

transmits the unique ID and corresponding IR signal.

And regarding Test Mode, an user can store any answers in the remote keypad & the

maximum stored data will be 999 and the stored answer will be transmitted to PC

after downloading at IR USB Receiver.

2.1 General Features

z There are two modes - Presentation mode and Test mode

z LCD display - Question Number , Answer and so on

z 15 buttons (0~9, *, ? ,↓(N), ↑(Y), T/P)

z LED - Lights when button is pressed while in Presentation Mode

- Lights when low battery voltage is detected

z Two batteries – CR2450 (3V) x 2ea

z Non-volatile memory (EEPROM) capable of storing up to 999 single digit

responses

Summary of content (8 pages)

PAGE 1
< ResponseCard XL > 1. Introduction It is a part of educational system, students using this system can transmit answers though it to PC remotely. Then a receiving part accepts the signal form the each student and passes it over to a PC. Finally, the PC saves the answers and reconstructs them. 2. Remote Keypad It has a unique ID. It can be operated in the Presentation & Test mode.
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.2 LCD display • 4 large digits ; 3 for Question Number and one for Answer When Presentation mode • When Test mode In Test mode, a dialog display to interface with user with feedback questions such as "Lease Test Mode? (Y/N)" and “Erase Stored Data? (Y/N)” 2.3 Buttons There are 15 buttons for education XL remote keypad. ↓(N) ↑(Y) 1/A 2/B 4/D 5/E 7/G 8/H * 0/J T/P 3/C 6/F 9/I ? 2.4 ID code There are 6,291,456 possible ID combinations available.
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Answer field of the LCD. LCD display is blank when Normal status Echoed for 3 second when key is pressed 2.5.1 Setting ID ID of each remote can be set to a desired ID code as follows: a) Press and hold both “*” and “6” buttons until LED is lit constantly. b) Press the numeric key corresponding the desired ID code. For code “000123”, ‘0’, ‘0’, ‘0’, ‘1’, ‘2’, ‘3’ serially. c) IR remote will acknowledge by blinking LED 3 times. 2.5.
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• • • Student can use Up and Down Scroll buttons to change Question Number 001~999, enter and/or review answers already stored. Student can change the wanted number by themselves through Goto function. a) Press ‘*’, then the first digit will be blink for Question Number. b) If press the wanted number, the next digit will be blink for Question Number. c) And press the wanted number, the next will be blink for Question Number of third digit. d) Press ‘?’.
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• Once student has completed test, Mode button (T/P) is pressed again. Unit displays "Leave Test Mode? (Y/N)" message. If "Y" is pressed, unit switches from Test mode to Locked mode and displays “LOCK” under Answer space. While in Lock mode, units Presentation capabilities are fully functional. • Unit may not leave Lock mode until stored answers are downloaded and previously stored answers are deleted.
PAGE 6
2.7.1 Range while in Presentation mode The nominal IR transmission distance is 13m (~ 42’) when the battery is fresh. The IR transmission distance may reduce as the battery wears out. 2.7.2 Range while in Transmission/Download The distance is 1m (3feet) when battery is fresh. 2.8 Low Battery Indicator The unit will indicate when the battery is low and needs to be replaced. The unit will flash or go on LED to indicate low battery 2.9 Casing Features Size of a remote keypad is 62x100x8.
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computer. 3.2 Protocol from remote keypad of Presentation mode IR receiver sends 9 bytes of data to the host PC via USB interface when a valid IR data is received. (LED lights and go off to indicate a valid data) ID code 6 bytes Button code 1 byte 1 byte 1 byte Ex: ID “A2345F” and button ‘*’, IR receiver will send bytes A 2 3 4 5 F * 3.3 Protocol from remote keypad for Downloading IR receiver sends the following data to host PC via USB interface when a valid download data is received.
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