KAPPA Telemetry Receiver Module
DS-KAPPA-T868-2
KAPPA Receiver module serial data output
Serial data output operation:
The KAPPA outputs the serial number, button and battery status of the transmitter encoder.
This data may be fed directly to a microcontroller or RS232 type driver circuit which may then be
fed directly to a PC serial port.
Serial data is output on every packet receipt - this equates to every 1/4 second whilst a button
is held down/input active. This data is output is valid regardless of whether the Transmitter/
Encoder has been learnt to the KAPPA or not. The serial data packet contains a learn bit to show
if an encoder input is learnt.
Serial data configuration :
Baud Rate:
19,200
Data bits:
8
Parity:
none
Stop bits:
1
Handshaking:
none
Serial
data
for-
mat:
Serial number [SN1 SN2 SN3]:
Made up of three 8-bit bytes where the most significant byte is transmitted first.
Example: 12ABAA (hexadecimal) or 0001 0010 1010 1011 1010 1010 (binary)
Tx input stats [IP1-8 IP9-16]: made up of two 8-bit bytes.
The low order byte is sent first representing inputs 8 down to 1 where the MSb is input 8 and
the LSb is input 1. The high order byte is sent next representing inputs 16 down to 9 where the
MSb is input 16 and the LSb is input 9.
A bit at state 1 represents an encoder input as active.
Using this method inputs can be multiplexed giving maximum versatility.
Example: 00000000 00010000
Shows input 13 active.
10000000
00000000 Shows input 8 active
10000001
10000000 Shows inputs 16, 8 and 1 active
Learn status and low battery:
One 8 bit byte:
Bit0 shows low battery on Tx - where 1 = Low battery
Bit1 shows learn status of Tx - where 1 = Learnt
Bespoke versions
Customised versions of the all transmitters, receivers and chipsets are available to provide a
bespoke remote chipset for OEM applications. Please contact our sales or support teams for
further information.
SN1
SN2
SN3
IP1-8 IP9-16
TXV
Line Feed - $0A (hex)
Input status on Tx
3 byte serial number
STAT
CR
LF
9 bytes of serial data sent
Carriage Return - $0D (hex)
Tx battery voltage (if available)
Learn status and low battery
