CalAmp FOB10-BL User manual

BLE KEYFOB™
Hardware and
Installation Guide
Version 1.0.0
SEPTEMBER 1, 2015

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Regulatory Information
FCC Rules
Compliance Statement (Part 15.19)
The enclosed hardware device complies with the Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any
interference received including interference that may cause undesired operation.
FCC ID: APV-FOB10
IC ID: 5843C-FOB10
M/N: FOB10-BL
Manufacture: CalAmp Corp.
Warning (Part 15.21)
Changes or modifications not expressly approved by CalAmp could void the user’s authority to operate the
equipment. Manufacturer is not responsible for any radio or TV interference caused by unauthorized
modifications to this equipment.
Compliance Statement (Part15.105(b))
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
•Reorient or relocate the receiving antenna
•Increase the separation between the equipment and receiver
•Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
•Consult the dealer or an experienced radio/TV technician for help.
Industry Canada (IC) regulatory information
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the
following two conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de
licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas produire de
brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d’en compromettre le fonctionnement
CAN ICES-3 (B)/NMB-3(B)

Driver ID Keyfob system design
Table of contents
Driver ID Keyfob system design .......................................................................................................... 1
Key Fob button pushes .....................................................................................................................10
Button state machine ignoring debouncing .................................................................................10
button state coded as 2 bits .........................................................................................................10
Configuration for each button ...................................................................................................... 11
Event generation mask for each button coded as 1 byte.............................................................11
Keyfob configuration.........................................................................................................................11
OTP (factory set configuration).....................................................................................................12
Keyfob button timing diagrams for common scenarios. .................................................................. 12
Short press showing de-bouncing other buttons not pressed. ....................................................12
LMU-FOB comms ..............................................................................................................................13
Advertisement packet contents....................................................................................................13
Calamp Fob data contents ............................................................................................................13
Version letter encoding.................................................................................................................14
txpw contents ...............................................................................................................................14
Scan response packet contents ....................................................................................................15
Overview of Bluetooth Automatic Driver ID process........................................................................15
State Machine for driver ID discovery ..........................................................................................15
State Machine for Finding Fobs using Beeps and Buttons............................................................15
Description ....................................................................................................................................15
Sequence diagram of discovery of driver id when only one fob in range ....................................18
Sequence Diagram of discovery of driver ID using buzzer and button.........................................19
Sequence diagram of connecting to a single fob to sound buzzer during driver id discovery .....20
Bluetooth LE services ....................................................................................................................21
New PEG triggers ..........................................................................................................................21
New Trigger modifiers...................................................................................................................21
New PEG actions ...........................................................................................................................22
Params ..........................................................................................................................................22
Driver’s FOB Out-of-Range................................................................................................................ 23
Over the Air Update..........................................................................................................................23
Format of Fob OTA ID report ............................................................................................................24
Work Breakdown ..............................................................................................................................27

Build Process ................................................................................................................................. 27
Keyfob ...........................................................................................................................................27
BTCS ..............................................................................................................................................27
LMU............................................................................................................................................... 27
Key Fob button pushes
Button state machine ignoring debouncing
Warning: Any key press event with time interval shorter than 1s is not going to be reliably received
by LMU FOB module when LMU BT driver is operating in Scan advert mode.
The state diagram below will only work if the KeyFob is connected to BTDB.
button state coded as 2 bits
Not pressed
00
Pre-short press
01
Short Press
10
Long Press
11
The three buttons are bit coded into a single button state byte 0 0 b3 b3 b2 b2 b1 b1
Not
Pressed
Pre-short
press
Short PressLong Press
timeout MinSP
Tx ShortPress
timeout repeat SP
Tx Shortpress
timeout LP
Tx longpress
timeout repeat LP
Tx Longpress
Button push
Button release
Tx Not pressed
Button release
Tx Not pressed

Configuration for each button
configuration units / bit size (bytes) default
Event Generation mask (see below) 1 00111100
Generate events on
releasing button from
short press & when long
pressed & keep
generating long press
events until button is
released.
Event generation mask for each button coded as 1 byte
description mask (top 2 bits are reserved)
generate message on min short press timeout 00xxxxx1
generate message on short press repeat timeout
00xxxx1x
generate message on short press release
00xxx1xx
generate message on long press timeout
00xx1xxx
generate message on long press repeat timeout 00x1xxxx
generate message on long press release
001xxxxx
Keyfob configuration
Stored on individual Keyfobs.
units / bit size (bytes) default
Short Press minimum 100ms 1 2
Short Press Repeat 100ms 1 2
Long Press time 100ms 1 15
Long Press Repeat 100ms 1 5
beacon interval
1ms
1
8750
beacon duration after keypress
1s
1
0 (always and forever)
CID n/a 2 0xFFFF
(0xFFFF is special case and is
always processed) otherwise
this CID must match the CID
in the LMU
Tx power
db
1
0
Low Battery LED blink % % 1 20
Button push LED blink
n/a
1
0x07 all 3 buttons cause blink
when pressed (0x0f if 4
buttons)
Config button 1 (see above)
n/a
1
0x3c
Config button 2 (see above) n/a 1 0x3c
Config button 3 (see above) n/a 1 0x3c
reserved (for 4
th
button) n/a 1 0x00

OTP (factory set configuration)
Description size (bytes) default
Cal Id 2 0xca1a (** to be confirmed by
BT SIG)
tx power calibration
4 (1 for each available power
level)
measured during ATE
Keyfob button timing diagrams for common scenarios.
Short press showing de-bouncing other buttons not pressed.
0) Button is pushed at time zero.
a) After de-bouncing button is determined as pressed but no message is generated.
b) After ‘short press minimum time’ a short press event is generated and if configured a
message is broadcast with button state 0b00000010 and reason code 0b00010001.
c) After ‘short press repeat time’ a short press repeat event is generated and if configured a
message is generated with button state 0b00000010 and reason code 0b00010001.
d) After Button is released and de-bounced a button release event is generated and if
configured a message is generated with button state 0b00000000 and reason code
0b00110001
0) Button 1 is pushed
a) Button 2 is pushed before ‘short press minimum time’ for button 1. Because button 2 is
pushed before ‘short press minimum time’ Buttons 1 and 2 are now considered as grouped
for the purposes of the reason code.
b) Short press minimum time elapses on both button 1 and 2 if configured a message is
broadcast with button state 0b00010010 and a reason code of 0b00010011
c) The short press repeat time passes for buttons 1 and 2; if configured a message is generated
with button state 0b00001010 and a reason code of 0b00010011.
d) button 2 is released if configured a message is generated with button state 0b00000010 and
reason code 0b00110010
e) Button 1 is released if configured a message is generated with button state 0b00000000 and
reason code 0b00110001
Button 1
0a b c d
Button 1
Button 2
0a b ccccd e

0) Button 1 is pushed
a) Button 1 ‘short press minimum time’; a short press event is generated and if configured a
message is broadcast with button state 0b00000010 and reason code 0b00010001.
b) Button 1 ‘short press repeat time’; a short press repeat event is generated and if configured
a message is generated with button state 0b00000010 and reason code 0b00010001.
c) Button 2 ‘short press minimum time’; a short press event is generated and if configured a
message is broadcast with button state 0b00001010 and reason code 0b00010010.
d) Button 1+2 ‘short press repeat time’; a short press repeat event is generated and if
configured a message is generated with button state 0b00001010 and reason code
0b00010011.
e) Button 2 ‘released’; a button release event is generated and if configured a message is
generated with button state 0b00000010 and reason code 0b00110010
f) Button 1 ‘short press repeat time’; a short press repeat event is generated and if configured
a message is generated with button state 0b00000010 and reason code 0b00010001.
g) Button 1 ‘long press time’; a long press event is generated and if configured a message is
generated with button state 0b00000011 and reason code 0b00100001.
h) Button 1 ‘long press repeat time’; a long press repeat event is generated and if configured a
message is generated with button state 0b00000011 and reason code 0b00100001.
i) Button 1 ‘released’; a button release event is generated and if configured a message is
generated with button state 0b00000000 and reason code 0b00110000.
LMU-FOB comms
Advertisement packet contents
The advertisement consists of at least 2 parts from GAP specification, Manufacturer Specific Data
called ‘calamp fob data’; and Tx Power Level called txpw.
Calamp Fob data contents
note: now using the MAC address as the fob ID.
size (bytes) Description default
L 1 length of this data 0x10
F 1 Manufacturer Specific Data as
defined in GAP
0xff
cal
2
Calamp manufacturer ID set by us
to distinguish our devices
0xca1a (big endian)
TBC
Button 1
Button 2
0a b b b b c d e f g h h i
calamp fob data txpw
L F cal vcid pfv ccrc s r b a

v
1
version of this message
0x01
cid 2 Set by customer/provisioning to
allow a single customer to
differentiate their devices from
the mass.
0x0000
p 1 App id;for the keyfob this is 0x01 0x01
fv 2 Version of keyfob firmware
running on the keyfob.
0xnnbb (big endian)
nn coded as packed
binary coded decimal
bb is version letter
and running area (see
below)
0x1308 is version
“1.3e” running from
low area
c
1
configuration version
crc 2 crc of the keyfob configuration
(defined above) that will include
CID, button config etc . Actual crc
polynomial TBD. This is to be used
to determine if the configuration
is as expected.
N/A
s 1 button state (see above) 0x00 no buttons
pressed
r 1 advertisement old button state
captured in previous time slot(see
above)
0x00 beacon
b
1
battery state (%)
0x64 100%
a 1 RSSI @ 1 metre taking into
account tx power level
n/a
Version letter encoding
version letter
bb for low area
bb for high area
‘a’
0x00
0x01
‘b’
0x02
0x03
‘c’
0x04
0x05
‘d’ 0x06 0x07
......
‘y’ 0x30 0x31
‘z’ 0x32 0x33
txpw contents
size (bytes)
Description
default
L
1
length of this data
2
P 1 Tx power as defined in GAP 0x0a
p 1 transmitted power of this 0xf6 (-10dB) **TBD
L P p

advertisement (db)
Scan response packet contents
May contain uuids of services, name and any other static data.
Overview of Bluetooth Automatic Driver ID process
State Machine for driver ID discovery
To mitigate contention where a FOB is in range of several LMUs the LMU will only look for FOBs
when the PEG script executes PEG action.
State Machine for Finding Fobs using Beeps and Buttons
Description
•LMU is asleep saving power
•Key Fob(s) transmitting beacons (advertisement packets) every 10 seconds.
•Driver turns key in ignition (and wakes LMU)
Idle
Finding
Driver Fob
Fob
connected
Fob Found
PEG Trigger
PEG trigger
PEG Action
Out of Range or
PEG Action
Not Found
PEG Trigger

•Peg ignition trigger causes Peg BT_KEYFOB_DISCOVER action (TBD) for
BT_KEYFOB_DISCOVER_TIME (configurable TBD) time.
•BT middleware starts discovery
•BT middleware populates discovered devices list including FOB ID and RSSI and TxPwr for all
calamp keyfobs that match the BT_KEYFOB_CID (configurable 0-FFFE standard CID, FFFF is
special case).
•BT middleware stops discovery after BT_KEYFOB_DISCOVER_TIME timeout
•BT middleware calculates path attenuation for all discovered keyfobs based on RSSI and
TxPwr.
oIf a single KeyFob has (config TBD) smaller path attenuation [BT_KEYFOB_PATHATT]
than all others, that key fob is selected as the driver’s fob.
oIf a single KeyFob has advertised a button push that key fob is selected as the
driver’s fob.
oOtherwise a set of candidate fobs is created from those fobs within
BT_KEYFOB_PATHATT of the least attenuated.
if configured with BT_KEYFOB_USE_FOB_RSSI (config TBD) BT middleware
connects in turn to each candidate fob and uses a config/control service to
measure the RSSI at the fob
•If a single KeyFob measures the RSSI with a
6dB/BT_KEYFOB_PATHATT less than all the rest this fob is selected
as the driver’s fob.
otherwise if configured with BT_KEYFOB_USE_FOB_BUTT (config TBD) BT
Middleware connects to each candidate fob and requests the buzzer to
sound for TBD on bench, start with 200) ms. BT middleware waits for
BT_KEYFOB_QUERY_DRIVER_TIMEOUT (config TBD) for a button press
response from the driver.
•if button defined in BT_KEYFOB_USE_FOB_BUTT is received from a
single fob, this fob is selected as the drivers fob
otherwise the driver’s fob is set to null.
•if driver’s fob is non null
oBT Middleware invokes PEG TRIG_BLE_FOB (already used) trigger with a button code
(TBD) as the modifier; having populated (config TBD) ACC_BLE_RSSI_HILO (already
used) accumulator with RSSI and ACC_BLE_FOB_BATT (config TBD) (already used)
with battery status.
oBT Middleware invokes DID_DriverId_Event()(already used)with FOB ID (not MAC
address) as the driver’s ID
oBT Middleware connects to Drivers fob and connects to the ‘button notification’
service; the ‘LED’ service; the ‘Buzzer’ service; and the ‘Configuration’ service.
obutton notification service provides the button state and reason codes as per
advertisement packet.
owhile connected PEG actions ACT_KEYFOB_BUZZ (config TBD) cause BT-middleware
to connect to the buzzer service(TBD) and sound the buzzer according to the
modifier (TBD)
Comment [n1]:
Optional for phase 2

owhile connected PEG actions ACT_KEYFOB_LED (config TBD) cause BT-middleware to
connect to the led service(TBD) and sound the buzzer according to the modifier
(TBD)
oWhile connected BT-middleware connects to config service(config TBD) and ota
management service(config TBD) and constructs a PULS ID report with the fob id as
the unique identifier and the LMU id as an agent(TBD).
oIf required LMU will download new config or firmware for fob.
the BT-middleware will contact the config service to update the config as
necessary
the BT-middleware will contact the OTA service and update firmware as
necessary
the BT-middleware will restart the fob firmware using the keyfob
control(TBD) service
Note: no settings changes take effect without reset. Reset drops the
connection.
oBT-Middleware monitors the connection. If the connection drops BT-middleware
invokes PEG TRIG_BLE_FOB (already used) trigger and DID_DriverId_Event()(already
used)

Sequence diagram of discovery of driver id when only one fob in range

Sequence Diagram of discovery of driver ID using buzzer and button

Sequence diagram of connecting to a single fob to sound buzzer during driver id
discovery