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SF10
Laser altimeter
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4. Menu options
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The SF10 can be connected through the on-board USB port to a Terminal emulation program running on a PC. The LightWare Terminal
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software is available for download from www.lightware.co.za.
Once the USB connection is made, the Terminal window displays the distance reading from the SF10. Pressing the <space bar> key
stops the measuring process and changes the display to a menu that lists all the available settings and configuration options. Pressing
the <space bar> key again restarts the measuring process. If no changes are made, the unit will automatically begin to measure
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again after two minutes.
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a: Serial port baud rate (9600 ... 115200)
The serial port transmits a serial string of ASCII encoded data from the SF10 to the host controller. The baud rate of transmission is
selected by menu item <A> and toggles through the standard baud rates from 9600 to 115200. By default, there is 1 stop bit and no
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parity or handshaking on this serial port.
The ASCII string representing the altitude is in floating point format with two decimal places followed by carriage return and line
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feed:
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where carriage return and line feed are given by the hexadecimal ASCII characters:
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The altitude is sent out of the serial port when any ASCII character is transmitted by the host controller to the SF10.
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b: I2C bus address (0x00 ... 0xFF)
The I2C bus operates in slave mode and accepts an 8 bit address before responding with a 16 bit, binary coded integer that is the
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altitude in centimetres. The address can be set by selecting menu item <B> and is entered as an bit, hexadecimal number.
SF10 Laser Altimeter - Product Manual - Revision 0
Product manual
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Figure 8 :: LightWare Terminal showing menu options
"22.48\r\n"
\r = 0x0D
\n = 0x0A
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© LightWare Optoelectronics (Pty) Ltd, 2014
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