Digi GPRS/GSM Application Kit: A versatile connectivity solution for your M2M applications. With this kit, you can easily connect your devices to cellular networks and unlock a world of possibilities. The kit includes everything you need to get started, including a GPRS/GSM modem, an antenna, and a power supply. With its reliable connectivity and flexible configuration options, this kit is ideal for a wide range of applications, including remote monitoring, asset tracking, and data acquisition.
Digi GPRS/GSM Application Kit: A versatile connectivity solution for your M2M applications. With this kit, you can easily connect your devices to cellular networks and unlock a world of possibilities. The kit includes everything you need to get started, including a GPRS/GSM modem, an antenna, and a power supply. With its reliable connectivity and flexible configuration options, this kit is ideal for a wide range of applications, including remote monitoring, asset tracking, and data acquisition.
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Machine-to-Machine Application Kit
LCD/Keypad Module Menu System
Part No. 020-0052 Rev. A
November 21, 2003
Overview
The KDU_MENU.LIB library provides the programmer with a set of functions that allow an efficient and
easy-to-use menu system for use by the operator. The programmer can list a set of action items for the
operator to choose from. Menus can be nested to call other menus or perform a desired task.
All the menu functions are nonblocking.
Display
The LCD will show the title of the menu, with a border, and display two menu items at a time:
Using the keypad, the operator can move the highlight with the
UP/DOWN arrow keys. Press the ENTER
key to select the highlighted item.
Keypad Operation
The LCD/keypad module has a 7-key keypad. The keys have the following response:
LEFT ARROW—not used.
UP ARROW—moves selection up 1 menu item.
DOWN ARROW—moves selection down 1 menu item.
RIGHT ARROW—not used.
MINUS KEY—moves selection down 2 menu items.
PLUS KEY—moves selection up 2 menu items.
ENTER KEY—selects the item highlighted.
®
020-0052 Rev. A 2
Menu Function Listing
Initialization function for a particular menu. Each menu will have its own kduMenuInit call.
PARAMETERS
menu is a pointer to the kduMenu structure assigned.
menu_options is a pointer to the list of menu items associated with the menu.
title is the title that will be displayed when the menu is displayed.
RETURN VALUE
1 when completed.
This function displays the menu pointed to by
mPtr.
PARAMETERS
mPtr is a pointer to the kduMenu structure to display.
state is a pointer to the state of the menu to display
MENU_INIT will display the menu with the first item highlighted.
MENU_REFRESH will display the menu with the last item selected highlighted.
x is the x coordinate of the starting horizontal pixel.
y is the y coordinate of the starting vertical pixel.
RETURN VALUE
0 if waiting for an item to be selected, or the item number selected when the ENTER key is pressed.
Clears the menu pointed to by
mPtr from the LCD.
PARAMETER
mPtr is a pointer to the kduMenu structure assigned.
RETURN VALUE
None.
int kduMenuInit(kduMenu *menu, char **menu_options,
char* title);
int kduDisplayMenu (kduMenu *mPtr, int *state, int
x, int y);
void kduMenuClear(kduMenu *mPtr);
020-0052 Rev. A 3
Places a border around the menu. This is normally done by kduDisplayMenu.
PARAMETER
mPtr is a pointer to the kduMenu structure assigned.
RETURN VALUE
1 when completed.
Data-Entry Functions
The menu library contains a set of data-entry functions that enable an operator to enter data such as param-
eters, time and date, IP addresses, phone numbers, passwords, etc. Data-entry functions use the keypad dif-
ferently than the menu system, so please look at the appropriate data-entry functions for their keypad
instructions. See the sample program KDU_DATA_ENTRY.C for a better understanding of their use.
Allows for data entry of long integer values.
PARAMETERS
Value is a pointer to location of data to be stored.
Heading is a pointer to the heading to be displayed.
digits is the maximum number of digits to allow for data entry.
RETURN VALUE
1 when completed, 0 if pending.
KEYPAD INSTRUCTIONS
LEFT ARROW—moves selection 1 to the left.
UP ARROW—increment value selected by 1.
DOWN ARROW—decrement value selected by 1.
RIGHT ARROW—moves selection 1 to the right.
MINUS KEY—no action.
PLUS KEY—no action.
ENTER KEY—Select the value entered, and exit the entry screen.
int kduMenuBorder(kduMenu *mPtr);
int kduEnterLong(long *Value, char *Heading,
int digits);
020-0052 Rev. A 4
Allows for data entry of float values.
PARAMETERS
Value is a pointer to the location of data to be stored.
Heading is a pointer to the heading to be displayed.
digits is the maximum number of digits to allow for data entry.
RETURN VALUE
1 when completed, 0 if pending.
KEYPAD INSTRUCTIONS:
LEFT ARROW—moves selection 1 to the left.
UP ARROW—increment value selected by 1.
DOWN ARROW—decrement value selected by 1.
RIGHT ARROW—moves selection 1 to the right.
MINUS KEY—no action.
PLUS KEY—no action.
ENTER KEY—Select the value entered, and exit the entry screen.
int kduEnterFloat(float *Value, char *Heading,
int digits);
020-0052 Rev. A 5
Allows for data entry of string variables.
PARAMETERS
String is a pointer to location of data to be stored in.
digits is the maximum number of digits to allow for data entry.
RETURN VALUE
1 when completed, 0 if pending.
KEYPAD INSTRUCTIONS
LEFT ARROW—moves selection 1 to left.
UP ARROW—moves selection 1 up.
DOWN ARROW—moves selection 1 down.
RIGHT ARROW—moves selection 1 to right.
MINUS KEY—delete the last item select.
PLUS KEY—accepts the item selected.
ENTER KEY—select the value entered, only asterisks will be displayed.
int kduEnterString(char *String, int digits);
020-0052 Rev. A 6
Allows for data entry of passwords. As a string item is selected, an asterisk will appear instead of the character
selected.
PARAMETERS
String is a pointer to location of data to be stored in.
digits is the maximum number of digits to allow for data entry.
RETURN VALUE
1 when completed, 0 if pending.
KEYPAD INSTRUCTIONS
LEFT ARROW—moves selection 1 to left.
UP ARROW—moves selection 1 up.
DOWN ARROW—moves selection 1 down.
RIGHT ARROW—moves selection 1 to right.
MINUS KEY—delete the last item select.
PLUS KEY—accepts the item selected.
ENTER KEY—select the value entered, only asterisks will be displayed.
int kduEnterPassword(char *String, int digits);
020-0052 Rev. A 7
Allows for data entry of IP addresses.
PARAMETERS
Address is a pointer to location of data to be stored in.
Heading is a pointer to the heading to display in the heading box.
RETURN VALUE
1 when completed, 0 if pending.
KEYPAD INSTRUCTIONS
LEFT ARROW—moves selection 1 to the left.
UP ARROW—increment value selected by 1.
DOWN ARROW—decrement value selected by 1.
RIGHT ARROW—moves selection 1 to the right.
MINUS KEY—no action.
PLUS KEY—no action.
ENTER KEY—Select the value entered, and exit the entry screen.
int kduEnterIpAddress(long *Address, char *Heading);
020-0052 Rev. A 8
Allows for data entry of 11-digit phone numbers.
PARAMETERS
Address is a pointer to location of data to be stored in.
Heading is a pointer to the heading to display in the heading box.
RETURN VALUE
1 when completed, 0 if pending.
KEYPAD INSTRUCTIONS
LEFT ARROW—moves selection 1 to the left.
UP ARROW—increment value selected by 1.
DOWN ARROW—decrement value selected by 1.
RIGHT ARROW—moves selection 1 to the right.
MINUS KEY—no action.
PLUS KEY—no action.
ENTER KEY—Select the value entered, and exit the entry screen.
int kduEnterPhoneNumber(char *PhoneString,
char *Heading);
020-0052 Rev. A 9
Z-World, Inc.
2900 Spafford Street
Davis, California 95616-6800
USA
Telephone: (530) 757-3737
Fax: (530) 757-3792
www.zworld.com
Rabbit Semiconductor
2932 Spafford Street
Davis, California 95616-6800
USA
Telephone: (530) 757-8400
Fax: (530) 757-8402
www.rabbitsemiconductor.com
Allows for data entry of time and date.
PARAMETERS
Time is a pointer to location of time/date data to be stored in.
Heading is a pointer to the heading to display in the heading box.
RETURN VALUE
1 when completed, 0 if pending.
KEYPAD INSTRUCTIONS
LEFT ARROW—moves selection 1 to the left.
UP ARROW—increment value selected by 1.
DOWN ARROW—decrement value selected by 1.
RIGHT ARROW—moves selection 1 to the right.
MINUS KEY—no action.
PLUS KEY—no action.
ENTER KEY—Select the value entered, and exit the entry screen.
int kduEnterTimeDate(struct tm *Time,
char *Heading);
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Digi GPRS/GSM Application Kit User guide
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- User guide
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Digi GPRS/GSM Application Kit: A versatile connectivity solution for your M2M applications. With this kit, you can easily connect your devices to cellular networks and unlock a world of possibilities. The kit includes everything you need to get started, including a GPRS/GSM modem, an antenna, and a power supply. With its reliable connectivity and flexible configuration options, this kit is ideal for a wide range of applications, including remote monitoring, asset tracking, and data acquisition.
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