User Guide
Table Of Contents
- 1. Scope
- 3. Firmware:
- 4. Device Name:
- 5. User Interface:
- 5.1. Turn On
- 5.1.1. Power On LED Sequence
- 5.2. Pairing Mode
- 5.2.1. Pairing LED Indication
- 5.2.2. Known Issues
- 5.3. Play/Pause
- 5.3.1. Pause LED indication
- 5.3.2. Play LED indication
- 5.4. Volume Up/Dwn
- 5.6. Mode Button (DSP Toggle)
- 5.7.1. Concert Mode LED indication
- 5.8. Charging Operation
- 5.9. Charge Level Indication
- 5.9.1. Known Issues
- 5.10.1. Power OFF LED Sequence
- 5.11. Audible Prompts
- 5.11.4. Minimum Volume
- 5.11.5. Pairing Mode
- 5.11.8. DSP Tunning
Krill Operational Guide.doc Page 2 of 7 08/26/2022
Document Number:
Document Title:
Krill Operational Guide
Revision Level:
A
8/26/2022
Original Created By:
M Harkins
Revised By:
M Harkins
ECO:
5.1.1. Power On LED Sequence
When the Power/Play/Pause button is first pressed in the off state, the Power On LED
sequence starts with lighting the Play/Pause button, it remains lit as a half second later
the Concert Mode and Next buttons light up. They all remain lit as a half second later
the Volume Up and Volume Down buttons light up. They remain on for a half second
then they all turn off. After the Turn On sequence is completed, there is a delay until
the BT module indicates it has booted and is ready. All LEDs are off during this time.
Upon the BT module indicating it is ready, the unit automatically enters Pairing Mode.
5.1.2. Known Issues
Turn On prompt timing is not always quite correct and volume level is too high (IMO).
5.2. Pairing Mode
Upon completion of the Power On sequence and the BT Module indicating it is ready, the
unit automatically enters Pairing Mode. If the unit was already paired to a device, and that
device is present, this may be an extremely short period of time.
Additionally, pressing and holding the Power Button for ~ 0.5 seconds then releasing causes
the unit to enter pairing mode. This operation is only required when connected to a phone
and wishing to disconnect and enter Pairing mode. This operation has been only partially
implemented at this time.
5.2.1. Pairing LED Indication
Pairing is indicated by all Button LEDs blinking at a rate of half second on, half second
off. This continues until either a connection is made, or registration times out. NOTE:
In P1.8 the micro received no notice of time out, or module shut down. This will be
fixed goingforward.
5.2.2. Known Issues
There is no means to “Cancel” pairing mode or to disconnect from a current connection
to enter pairing mode in the P1.8 Firmware build. We need the “Disconnect” command
implemented in the module to allow the unit to force disconnection to existing
connection prior to entering Pairing mode.
5.3. Play/Pause
After powering up and connecting to a device, the unit enters the Pause mode. Pressing and
releasing the Play/ Pause button will toggle the operation between paused and streaming.
(See Charging and Fault sections for expected LED color).
Original Issue Date:
Date Effective: