Adafruit Bluefruit EZ-Key response messages

NOTE: This page will be updated as I have time to do some more tests, but I wanted to get something posted so Google could begin indexing it…

The $20 Adafruit Bluefruit EZ-Key module sends a variety of status messages back through it’s serial port. Here is a list:

Power Up, unpaired:

Adafruit Bluefruit HID v1.2 11/30/2013
 No devices, making discoverable
Discoverable

When being paired:

Connecting to host xxxx,xx,xxxxxx
Exit discoverable
Connected

Power Up, paired – device not present:

Adafruit Bluefruit HID v1.2 11/30/2013
 Attempt to connect to xxxx,xx,xxxxxx
Failed to connect

Power Up, paired – device present:

Adafruit Bluefruit HID v1.2 11/30/2013
 Attempt to connect to xxxx,xx,xxxxxx
Connected

Pair Button Depressed to enter pairing mode:

Reset paired devices
Disconnected
Reset paired devices
Discoverable
Reset paired devices
Exit discoverable
Discoverable

* It appears to repeat those messages each time.

Power Up in remap mode (holding down PAIR button):

Adafruit Bluefruit HID v1.2 11/30/2013
Remap ready!

After sending remap HEX string:

OK
Set Mapping:64

* The tutorial on the Adafruit site indicates the number should be 128. As of yet, I do not know what the 64 and 128 represent, but I assume it’s some kind of bit mapped status.

Resending the HEX string:

OK
 Mapping:

* Not the missing “Set” but the space in front of “Mapping” is still there, and no status number. Maybe I dropped some data (it happens every time) or maybe it’s some missing stuff in the EZ-Key firmware.

At this point, I reset the EZ-Key if I wish to remap again. I am not sure (yet) if the second remapping takes effect (I will test and update this page).

When a switch is used, a key down message is sent, and then a key up message is sent when the switch is released. I’ll go through this when I get a moment and document the bits (I think I have a typo in this initial list).

K 0xFEF ... input 0 (1111 1110 1111) pressed
K 0xFFF ... input 0 (1111 1111 1111) released

K 0xFDF ... input 1 (1111 1101 1111)
K 0xFFF

K 0xFFB ... input 2 (1111 1111 1011)
K 0xFFF

K 0xF7F ... input 3 (111 0111 1111)
K 0xFFF

K 0xFEF ... input 4 (1111 1110 1111)
K 0xFFF

K 0xFDF ... input 5 (1111 1101 1111)
K 0xFFF

K 0xFBF ... input 6 (1111 1011 1111)
K 0xFFF

K 0xF7F ... input 7 (1111 0111 1111)
K 0xFFF

K 0xEFF ... input 8 (1110 1111 1111)
K 0xFFF

K 0xDFF ... input 9 (1101 1111 1111)
K 0xFFF

K 0xBFF ... input 10 (1011 1111 1111)
K 0xFFF

K 0x7FF ... input 11 (0111 1111)
K 0xFFF

Others – to be documented next update:

Adafruit Bluefruit HID v1.2 11/30/2013
No devices, making discoverable
Discoverable

…or…

Adafruit Bluefruit HID v1.2 11/30/2013
No devices, making discoverable
Discoverable
Connecting to host xxxx,xx,xxxxxx
Exit discoverable
Connected

And…

Adafruit Bluefruit HID v1.2 11/30/2013
Attempt to connect to xxxx,xx,xxxxxx
Failed to connect

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