BRAVO Telemetry Module
DS-BRAVO-9
Pin-out
Pin Description
Pin No
Name
Direction
Description
1
ANT
In
Antenna input/output 50ohm impedance
2, 15
GND
In
Connect to ground
3, 4, 7, 8,
9, 11, 12
14
I/O1-8
In / Out
When configured as transmitter:Active low
Digital inputs: high impedance inputs
When configured as receiver: Active High
Digital outputs: LVCMOS output drive
5
LRN SW
In
Learn switch input: Normally ‘high’ momentary
connect to Ground to enter Learn Mode.
If on board switch or to be used this input can
be left unconnected
6
LRN LED
Out
Optional LED drive output Mirrors on-board LED
10
TX/RX
In
Connect to Vcc : Module is a transmitter
Connect to GND : Module is a receiver
13
W-DOG
In / Out
Transmitter= Input
Connect to Vcc : Watchdog is disabled
Connect to GND : Watchdog is enabled
Receiver= Output
High : Watchdog is healthy
Low : Watchdog Fault!
16
Vcc
In
Supply voltage
17
N/C
N/A
Leave unconnected
NC
In
TX MODE ONLY
MOM/
LTCH
In
In RX MODE ONLY
Momentary mode pull pin low - Connect to GND
LATCH mode pull pin high - Connect to VCC
Bravo
10 11 12 13 14 15 16 17 18
9
8
7
3
2
1
4
5
6
A
N
T
G
N
D
Tx
/
N
R
X
I/O
1
I/O
2
I/O
3
W
-D
O
G
I/O
4
I/O
5
I/O
6
I/O
7
G
N
D
V
cc
Learn Switch
LR
N
L
E
D
LR
N
S
W
I/O
8
N
C
N
C
LED
General description of operation
Each module can be set to act as a ‘ transmitter’ or ‘receiver’ A telemetry system is achieved when
two modules are paired together, as transmitter (BRAVO-Tx) and receiver (BRAVO-Rx).
Each time any input changes on the BRAVO-Tx, it will transmit the input status to the paired BRAVO
-Rx(s). The BRAVO-Rx(s) which will set their outputs to match the BRAVO-Tx input. After each state
change the modules will return to sleep mode.
Note: All of the 8 channels are common to all modules in a system
Example: If you are using a system with two or many Bravo modules each channel be will common to
all modules ie. if you change state on transmitter input 8, then all receiver output 8’s will also
change state.
18
