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SBOU155B – October 2015 – Revised February 2017
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OPT8241 Evaluation Module
4.3.1
Indicator LEDs
The sensor board has 2 LEDs for indicating various operating states of the board. The master LED
indicates the overall status of the board and the TFC LED indicates the status of the Time-of-Flight
chipset. The various states of the board are listed in
Table 3
.
Table 3. LED Indicator States
State
Master LED
TFC LED
Status Type
All OK, Streaming OFF
Bright Green
Blue
Info
All OK, Streaming On
Cyan
X
Info
TFC Test Mode Enabled
X
Off
Info
Firmware Upgrade in progress
Blink
(Magenta)
X
Info
Firmware Upgrade done
Magenta
X
Info
DC Jack unplugged
Dimmed colors
X
Info
Overtemperature
X
Magenta
Warning
TFC booted, but status failed
X
Red
Error
TFC did not boot
Blink (Red)
Off
Error
In usual operating conditions, the master LED should be green/cyan and the TFC LED should be blue.
4.3.2
Power Switch
The power switch controls the power to both the sensor and the illumination board. The switch controls
are shown in
Figure 7
.
Figure 7. Power Switch
4.3.3
Reset Switch
The reset switch resets the entire board without the need to power-cycle the board. As part of the reset
process, the reset triggers a USB connect and disconnect on the USB and output data streaming will stop.
This may cause the evaluation software on the PC to misbehave if the software is in connected state.
Disconnect and connect operations on the software should restore the CDK operation with reset
parameters.
Figure 8
shows the location of the reset switch.
