Data Sheet

A Autonomous mode start (available since FW: 1.3.8)
0x41…
Set tinyLiDAR to a host controller-less Single Step Ultra Low Power
conversion mode. This is a new
lower
power mode of the module where it
will take a measurement continually at a specified cadence and stay in the
lowest power state otherwise. A trigger threshold distance must be
programmed before this mode can be started. Once an object is closer than
this trigger distance, the logic output signal available on pin 4 as shown in
the diagram below will be set to “high” for a programmable time duration.
No I2C host such as an Arduino etc is needed for operation once tinyLiDAR
is
in this mode. The I2C bus will be inoperable during this mode, however the
serial TTY output port (pin 1) will still be running. As of FW:1.3.9, the white
pin (SDA) will also go “low” for the duration when triggered. This was done
for convenience so that all connections would be available on the 4pin Grove
connector. As of FW:1.4.0, the min pulse width value is now 0 which means it
will generate a short low going pulse width of approx. 1.5ms in duration on
the SDA pin when triggered. This is meant to be used as an interrupt for a
host processor board.
This command requires a sequence of steps which are best applied from
the tinyLiDAR Terminal GUI sketch shown in Appendix A.
Limits: 10 to 2000mm for low and high side limits
Interval: 1 to 600 for 100ms increments
Pulse Width: 0 for 1.5ms, else 1 to 100 for 100ms increments
LED Indicator: 1 for ON, 0 for OFF
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