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Revision history
Version
Date
Rev 7
2018/04/26
Rev 6
2018/04/05
Rev 5
2017/07/27
Rev 4
2017/05/25
Rev 3
2017/05/05
Rev 2
2017/04/10
Rev 1
2017/03/03
Rev 0
2017/02/20
LW20 / SF20 LiDAR - Product manual - Revision 7
Author
TLP
Added new model variations for "LW20/B", "LW20/C", "SF20/B" and "SF20/C" to
replace obsolete "LW20/SER", "LW20/I2C" and "SF20" models (pages 2, 7, 15). Units
now ship a single I2C and serial communication cable (pages 7, 15, 17, 24). Updated
"Figure 10 :: Connection to a USB converter cable" (page 11). Updated "Figure 4 ::
Connection to a USB converter cable" (page 8) and "Figure 13 :: Connection to a
Devantech USB-ISS module" (page 13). Removed sentences "5 V logic should also work
without any level shifters." and "In some cases, 5 V logic will also work but this is not
guaranteed." (page 15). Included cautionary note "Ensure that adequate ventilation or
heat sinking is provided if the SF20 is incorporated into a custom enclosure, as heat
build-up could occur." (page 22). Removed "Figure 31 :: I2C and power cable". Updated
"Figure 31 :: Pinout diagram" by removing reference to "or 5 V logic" on RXD pin (page
22).
TLP
Updated "4. Specifications of the LW20 / SF20" item "Range" to "0.2 ... 100 m (sunlit
white wall, 45 readings per second)" (pages 4, 5). "4. Specifications of the LW20 /
SF20" item "Beam divergence" to "0.3°" (page 5). Updated "Figure 13 :: Connection to
a Devantech USB-ISS module" to reflect an LW20/I2C model (page 11).
TLP
Added "Figure 32 :: Pinout diagram (page 22).
TLP
Highlighted the factory default I2C bus address as 0x66 (pages 12, 14). Highlighted the
factory default serial baud rate as 115200 (page 12).
TLP
Changed baud rate setting from 921600 to 115200 (pages 6, 9). Updated "Figure 13 ::
Connection to a Devantech USB-ISS module" (page 11). Updated LightWare Terminal
screens to version 1.3.1 (pages 6, 9, 10, 11, 14). Included "Data streaming" section into
"Appendix C" (page 25).
TLP
Include new section "6.1 How to communicate with the LW20 using the Devantech USB
to I2C module" (pages 11, 12).
JEP
Updated "4. Specifications of the LW20 / SF20" to include the approval "FDA:
1710193-000 (2017/02)" (page 5). Update "Figure 26 :: Serial and power cable" (Rev 2)
and "Figure 27 :: I2C and power cable" (Rev 2) to include a Ferrite Core component
(page 19).
JEP
First edition
|
|
28
of
28
LW20 / SF20 LiDAR sensor
Comments
© LightWare Optoelectronics (Pty) Ltd, 2018
Product manual
|
www.lightware.co.za
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