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BOS1901-KIT
User Guide
4.1
Operation Mode LED Details
This section describes the meaning of the different colors and state transitions of the operation mode
LED.
Table 5: Operation mode LED detail
Pattern
1 second on, 1 second off
1 second on, 1 second off
Any other pattern or color behavior maybe caused by unofficial firmware or bug.
4.2
BOS1901 Error LED Details
This section describes the meaning of the different colors and state transitions of the BOS1901 Error
LED. The two BOS1901 of the BOS1901-KIT board are monitored to validate the presence of an internal
error. If an error is detected, the BOS1901 Error LED is used to indicate the detection of this error. See
section 8.5.3, for more information on the procedure to get the details of the error.
Table 6: BOS1901 error LED details
Pattern
Always off
700 ms on, 700 ms off
4.3
BOS1901 Status LEDs Details
This section describes the meaning of the different colors and state transitions of the BOS1901 status
LED. There is a status LED for each BOS1901.
Table 7: BOS1901 status LED details
Pattern
Always on
Always on
BT001DDK04.01 – Issue 1
Color
Green
In Haptic mode and working normally.
Blue
In Audio mode and working normally.
Color
N/A
No error detected on any BOS1901.
Red
At least one internal error has been detected by a BOS1901.
Color
Sensing the voltage of the piezo electric actuator to detect
Green
press or release event.
Blue
Sending haptic feedback data to the BOS1901.
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Description
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