Data Sheet

UZ End Ultrasonic Emulation mode (available since FW: 1.3.9)
Stops the tinyLiDAR
Ultrasonic Emulation mode and enables the I2C port again for normal host controller
based operation.
This command requires a sequence of steps which are best applied from the tinyLiDAR
Terminal GUI
sketch shown in Appendix A.
Additional Steps:
To bring the tinyLiDAR board out of this ultrasonic emulation mode you need to issue the UZ command (via
the I2C bus pins) while also pressing the RESET button on the tiny board. The proper sequence is as follows:
1) Type UZ on the Terminal GUI but do not press enter yet.
2) Click and hold the RESET button on the tinyLiDAR board.
3) Press enter for the GUI Terminal to execute the command while releasing the RESET button on the
tinyLiDAR board. A counter is shown counting down from 10 to 0. You must release the RESET button
on the board before 0 is reached on this counter.
4) If successful, you will see the LED on tinyLiDAR give a short rapid blinking pattern for about 1.5
seconds to show it understood your UZ command. If it didn’t work then please repeat from step 1.
At this point the board is functioning as normal and can be controlled by the I2C bus again
Hardware Clear Pin (available since FW: 1.4.0)
If needed for any reason, you can clear the user variables stored in the EEPROM by grounding pin 6 on the
tinyLiDAR board and then pressing the Reset button. This is equivalent to the function provided with the
“RESET” I2C command issued by the GUI Terminal sketch.
tinyLiDAR Reference Manual rev1.26 28