Component: GSM (EB066, Generic AT) (Wireless)

Author	Matrix Ltd.
Version	2.0
Category	Wireless

GSM (EB066, Generic AT) component

Low level routines for controlling a standard AT GSM / GPRS interface Also available in the form of the EB066 GSM E-block.

Detailed description

No detailed description exists yet for this component

Examples

GSM Example Example should show the following on the display on the panel and on the hardware.

The AT injector component allows us to simulate the response of the GSM module.

Downloadable macro reference

	DialNumber
Performs a standard voice call by dialling the number specified. Returns 0 for call in progress and 255 for no response.
- STRING	Number
- BYTE	Return

	GetTextString
Collects the text message data from an incoming text message.
- BYTE	NumBytes
- STRING	Return

	SendString
Sends a string to the GSM module.
- STRING	Text
- VOID	Return

	SendScript
Send an AT command script. Returns 0 for fail, 1 for success and 255 for unrecognised script idx.
- BYTE	idx
- BYTE	Return

	SendCommand
Sends a command string to the GSM module. 0 = Command sent ok, 255 = No Reply
- STRING	Command
- BYTE	SendCR
- BYTE	Return

	AnswerIncomingCall
Answers the phone for an incoming type call. Returns 0 for success and 255 for failure.
- BYTE	Return

	GetTextNumber
Collects the sender's phone number from an incoming text message.
- BYTE	NumBytes
- STRING	Return

	HangUpCall
Ends a voice based call. Returns 0 for success and 255 for failure.
- BYTE	Return

	ReadString
Copies the data from the data string array to a local string variable
- BYTE	NumBytes
- STRING	Return

	SendTextMessage
Sends the text message data specified to the number specified using the SMS protocol. Returns 0 for success and 255 for failure.
- STRING	Number
- STRING	Message
- BYTE	Return

	StringReceive
Attempts to receive a string from the GSM modem.
- BYTE	Return

	DeleteAllMessages
Removes all pending text messages from the GSM module. Returns 0 for success and 255 for fail.
- BYTE	Return

	CheckNetworkStatus
Returns the state of the GSM network. 0 = Not connected, 1 = connected, 255 = no reply from GSM.
- BYTE	Return

	CheckForIncoming
Checks to see if any incoming phone call or SMS message. 0 = Nothing, 1 = Text Received, 2 = Phone Ringing
- BYTE	Return

	Initialise
Sets up the GSM module. Returns 0 for OK, 255 for no reply and 254 for command fail.
- BYTE	Return

	ReadMic
Reads the microphone sensor 0 - 4095
- UINT	Return

	ReadSwitch
Read the switch value
- BYTE	index
0 (left) or 1 (right)
- BYTE	Return

	SampleAccel
Samples the accelerometer 0 = no new data, 1 = new data available
- BYTE	Return

	Left
Rotates the robot left - waits for the angle to be traversed before returning
- UINT	Angle
Angle to turn in degrees
- VOID	Return

	ReadIR
Reads an IR sensor 0=Left, 1=FrontLeft, 2=Front, 3=FrontRight, 4=Right, 5=RearRight, 6=Rear, 7=RearLeft
- BYTE	index
0=Left, 1=FrontLeft, 2=Front, 3=FrontRight, 4=Right, 5=RearRight, 6=Rear, 7=RearLeft
- UINT	Return

	LCDDrawPixel
Allows a single pixel on the LCD to be set or cleared
- BYTE	X
X Pixel 0-127
- BYTE	Y
Y Pixel 0-31
- BYTE	State
0=White (Off), 1=Black (On)
- VOID	Return

	ServoSetPosition
Allows one of the servo positions to be assigned
- BYTE	Channel
Range 0-3
- BYTE	Position
Range 0-255
- VOID	Return

	CardBitmap
Displays a monochrome bitmap read from the card on the LCD
- BYTE	X
Range 0-127
- BYTE	Y
Range 0-31
- STRING	Filename
- BYTE	Return

	CardRecordMic
Records an audio stream on the card from the microphone
- BYTE	BitDepth
0=8-bit, 1=16-bit
- BYTE	SampleRate
Sample Rate 0=8KHz, 1=16KHz
- UINT	RecordTime
Time to record for in seconds, Range 0-65535
- STRING	Filename
- BYTE	Return

	CardOpen
Attempts to open an existing file on the SD card 255=Error, 1=File not found, 0=Open OK
- STRING	Filename
- BYTE	Return

	Forwards
Drives the robot forwards - waits for the distance to be traversed before returning
- UINT	Distance
Distance in mm
- VOID	Return

	ReadBearing
Reads the compass bearing based on the degrees clockwise from magnetic north.
[[File:]] -	Return

	GetConsoleHandle
Gets the handle to the console allowing data displaying on the panel etc.
[[File:]] -	Return

	LCDDrawLine
Allows a single pixel width line to be drawn on the LCD
- BYTE	X1
X Pixel 0-127
- BYTE	Y1
Y Pixel 0-31
- BYTE	X2
X Pixel 0-127
- BYTE	Y2
Y Pixel 0-31
- VOID	Return

	ServoAutoMoveToPosition
Allows one of the servo positions to move gradually to a new position
- BYTE	Channel
Range 0-3
- BYTE	Position
Range 0-255
- VOID	Return

	ReadAllValue
Reads a single value stored from the read all command Index dictates which sensor value to read
- BYTE	Index
0=SW, 1-8=IR, 9-10=Line, 11=Light, 12=Mic, 13-15=Accel
- UINT	Return

	LCDBacklight
Allows the LCD backlight brighntess to be adjusted
- BYTE	Intensity
Range 0-100, 0=Off, 1=Min Brightness, 100=Max Brightness
- VOID	Return

	LCDDrawRect
Allows a rectangle to be drawn on the LCD
- BYTE	X1
X Pixel 0-127
- BYTE	Y1
Y Pixel 0-31
- BYTE	X2
X Pixel 0-127
- BYTE	Y2
Y Pixel 0-31
- VOID	Return

	ReadLine
Reads one of the IR line sensors 0-1 0=Left, 1=Right
- BYTE	index
0=Left, 1=Right
- UINT	Return

	ServoDisable
Allows one of the servo outputs 0-3 to be disabled
- BYTE	Channel
Range 0-3
- VOID	Return

	ServoEnable
Allows one of the servo outputs 0-3 to be enabled
- BYTE	Channel
Range 0-3
- VOID	Return

	CardReadByte
Reads a byte from the currently open file. Starts at the beginning of the file and auto increments to the end
- BYTE	Return

	CardErase
Attempts to delete an existing file on the SD card 255=Error, 1=File not found, 0=Delete OK
- STRING	Filename
- BYTE	Return

	CardWriteByte
Appends a byte to the end of the currently open file
- BYTE	Data
- VOID	Return

	EncoderRead
Reads one of the motor encoder counters. Approx 0.328296mm of travel per encoder unit.
- BYTE	index
0=Left, 1=Right
- UINT	Return

	SetMotors
Sets the motor speeds without feedback Range -100 to 100
[[File:]] -	Left
Range -100 to 100
[[File:]] -	Right
Range -100 to 100
- VOID	Return

	Backwards
Drives the robot backwards - waits for the distance to be traversed before returning
- UINT	Distance
Distance in mm
- VOID	Return

	EncoderReset
Resets the motor encoder counters
- VOID	Return

	LCDVerbose
Allows the LCD to automatically report the API commands as they get processed. Default - verbose on
- BYTE	State
0=Off 1=On
- VOID	Return

	SetProp
Allows the COM port property to be set from a parent component.
- STRING	PropName
- ULONG	PropVal
- VOID	Return

	CardInit
Attempts to startup the SD card 255=No Card, 254=Init Fail, 0=Init OK
- BYTE	Return

	GetProp
Allows the property filter for the COM port list to be copied to a parent component.
- STRING	PropName
- STRING	Return

	LCDClear
Clears the LCD
- VOID	Return

Property reference

	Properties
	Expect Echo
Sets if we expect an echo of any data we send out to the GSM modem. Most AT type modems (e.g. GSM modules) will automatically echo back incoming data.
	String Array Size
Amount of RAM memory to dedicate to receiving responces from the GSM
	Message Array Size
Amount of RAM memory to dedicate to storing the last SMS message received by the GSM.
	Script Count
Maximum number of scripts to store in the device's ROM
	Script1
ASCII based AT command data stored in ROM and used when sending script 1
	Connections
	Channel
UART Channel selector Software channels are bit banged using generic I/O pins but are not as reliable as hardware channels. Hardware channels use the selected peripheral on-board the target microcontroller.
	TX
Pin to be used for Transmit data
	RX
Pin to be used for Receive data
	Use Flow Control
Flow Control (Handshake) enable or disable. On: Two I/O pins are used to control the flow of data in and out of the device. Off: Flow control is disabled.
	Baud Options
Baud rate option selector
	Baud Rate
	Simulations
	Label
Textual label shown on the component I/O flasher
	Scope Traces
Selects if the scope traces are automatically added to the data recorder window or not. Simulation - draws an approximation of the UART data onto the scope trace. ICT - sets up the scope trace for incoming data and adds UART packet decoding at the correct BAUD.
	Console Data
Selects if the console data is automatically generated or not
	Console Columns
Number of characters that can be displayed on a single line of the console.
	Data Source
Simulation data source used to allow the component to connect to various remote devices Nothing - Simulation data is ignored COM port - Routes the communication data to and from a physical or virtual COM port API - Routes the communication data via a data API component on the Panel.