OEM Transmitter
Evaluation Kit
User's Guide
Warning:
Some customers may wantproducts may be
Linx radio frequency ("RF") Linx radio frequency (“RF”)
products to control machinery or devices remotely, including machinery
used to control machinery or devices remotely, including machinery
or devices that can cause death, bodily injuries, and/or property
or devices that can cause death, bodily injuries, and/or property
damage if improperly or inadvertently triggered, particularly in industrial
damage if improperly or inadvertently triggered, particularly in industrial
settings or other applications implicating life-safety concerns (“Life and
settings or other applications implicating life-safety concerns. No Linx
Property Safety Situations”).
Technologies product is intended for use in any application without
redundancies where the safety of life or property is at risk.
NO OEM LINX REMOTE CONTROL OR FUNCTION MODULE
SHOULD EVER BE USED IN LIFE AND PROPERTY SAFETY
The customers and users of Remote Control or Function Module
SITUATIONS.
No OEM Linxdevices and machinery controlled with
RF products must for Life and Property use all appropriate safety
should be modifiedunderstand and must Safety Situations. Such
procedures cannot provide sufficient safety and will without limitation,
modificationin connection with the devices, includingvoid the product’s
using appropriate safety procedures
regulatory certification and warranty. to prevent inadvertent triggering by
the user of the device and using appropriate security codes to prevent
Customers may remote controlled machine or device by users of other
triggering of the use our (non-Function) Modules, Antenna and
Connectors as part of other systems in Life Safety Situations, but
remote controllers.
only with necessary and industry appropriate redundancies and
in compliance with applicable
product to trigger an action directly
Do not use this or any Linx
safety standards, including without
limitation, ANSI and NFPA standards. It is solely the responsibility
from the data line or RSSI lines without a protocol or encoder/
of any Linx customer who uses one or more of these products to
decoder to validate the data.
Without validation, any signal from
incorporate appropriate redundancies and safety standards for the Life
another unrelated transmitter application.
and Property Safety Situation in the environment received by the
module could inadvertently trigger the action. This module does not
have data validation built in.
Do not use this or any Linx product to trigger an action directly
from the data line or RSSI lines without a protocol or encoder/
All RF products are the data.
Without
interference
signal from
decoder to validate susceptible to RF
validation, any
that can prevent
another unrelated RF products without frequencyreceived by the module
communication.
transmitter in the environment agility or hopping
could inadvertently trigger the action.
implemented are more subject to interference. This module does not
have frequency agility built in.
All RF products are susceptible to RF interference that can prevent
communication.Linx
products without frequency agility or hopping
Do not use any
RF
product over the limits in this data guide.
implemented are more subject to interference. This module does not
Excessive voltage or extended operation at the maximum voltage could
have a frequency hopping protocol built in.
cause product failure. Exceeding the reflow temperature profile could
cause
use any Linx product over the limits
evident.
Do not
product failure which is not immediately
in this data guide.
Excessive voltage or extended operation at the maximum voltage could
Do not make
failure. Exceeding the reflow temperature
to any Linx
cause product
any physical or electrical modifications
profile could
product.
This failure which is not immediately evident.
cause product will void the warranty and regulatory and UL certifications
and may cause product failure which is not immediately evident.
Do not make any physical or electrical modifications to any Linx
product.
This will void the warranty and regulatory and UL certifications
and may cause product failure which is not immediately evident.
!
Table of Contents
1
Introduction
2
Ordering Information
2
OEM Transmitter Button Assignments
3
DS Series Receiver / Decoder Evaluation Board
4
Theory of Operation
4
Using the Kit
5
Setting the Address
6
Input Interpretation Selection Switches
6
Selecting the Protocol
7
Development Using the Prototyping Area
7
Using the Boards as a Design Reference
8
Range Testing
9
About Antennas
9
In Closing
10
DS Series Decoder Evaluation Board Schematic
11
Resources
OEM Transmitter Basic Evaluation Kit
User's Guide
Figure 1: OEM Transmitter Basic Evaluation Kit
Introduction
Linx OEM RF transmitters offer a simple, efficient and cost-effective method
of adding remote control and command capabilities to any product. The
Basic Evaluation Kit provides a designer all the tools necessary to correctly
incorporate Linx OEM transmitters and receiver modules into a product.
The evaluation board serves several important functions:
•
•
Rapid Evaluation: It allows the performance of the transmitters and
receivers to be evaluated quickly in a user's environment.
Range Testing: Using the OEM transmitter and the included
development board, a simplex transmission is generated that can be
used to evaluate the range performance of the products.
Prototype Development: An on-board prototyping area is provided,
which allows for additional circuitry to be placed directly on the board
so that it can act as the first prototype of the product. All of the signals
are available on a breakout header for easy access.
Design Benchmark: During the design process of your product, the kit
provides a known benchmark against which the performance of your
own design may be judged.
•
•
The kit includes 2 OEM transmitters, 2 DS Series encoders / decoders*, 2
LR Series receivers*, 2 PCB-mount RP-SMA connectors*, 1 development
board, 1 CW Series antenna, 2 AAA batteries and full documentation.
* One part is soldered to each Carrier Board
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1
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Revised 2/16/2016
Ordering Information
Ordering Information
Part Number
EVAL-***-HHCP
EVAL-***-HHLR
Description
Compact Handheld Basic Evaluation Kit
Long-Range Handheld Basic Evaluation Kit
DS Series Receiver / Decoder Evaluation Board
8
2
1
4
5
9
3
10
11
7
12
13
6
14
*** = 315, 418 (Standard) or 433MHz
Figure 2: Ordering Information
OEM Transmitter Button Assignments
D7
D5
D3
D1
D6
D4
D2
D0
Figure 4: DS Series Decoder Evaluation Board
CMD-HHCP-***
CMD-HHLR-***
Figure 3: OEM Transmitter Button Assignments
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Battery – 3VDC (use 2 AAA style batteries)
Power Switch
Power On Indicator LED
Prototyping Area
Breakout Header
LR Series Receiver Module
DS Series Encoder / Decoder
Reverse-Polarity SMA Antenna Connector
LEDs – D1–D7
Buzzer – D0
Protocol Selection Switch
Data and Address Line Interpretation Configuration Switches
Address Configuration DIP Switch
Valid Transmission Received LED
–
2
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–
3
–
Theory of Operation
OEM Transmitters
Linx OEM transmitters are a great way to quickly bring a remote control
product to market. They are fully assembled and certified, eliminating the
need for design, tooling, and certification. Linx can also customize the
transmitters with customer specific art, logos or switch layouts.
The operation of the OEM transmitter is straightforward. When a button(s)
is pressed on the OEM transmitter, the states of D0 to D7 are formatted
into packets by an on-board encoder IC. These encoded packets are sent
to a Linx transmitter that, through the antenna, conveys the data into free
space.
Receiver / Decoder Evaluation Board
The receiver board is powered by two AAA batteries. A Linx LR Series
receiver is used for reception of the transmitted signal. This receiver
provides exceptional sensitivity, allowing the transmitter and receiver to
operate at distances of up to 1,000 feet (depending on TX model and
signal conditions). The data recovered by the receiver is decoded by the
DS Series set as a decoder. If the settings of the 10-position DIP switch on
the receiver board match the address setting of the transmitter, the data
line outputs are updated to match the state of the buttons on the OEM
transmitter. To demonstrate this, one data line on the evaluation board is
used to drive a buzzer while the other lines activate LEDs. This board also
has a prototyping area with all of the receiver and decoder lines brought
out to a header.
Setting the Address
The DS Series encoder and decoder each have ten address lines that must
match in order for the transmitter and receiver to talk to each other. If they
do not match, then the decoder ignores the transmission and takes no
action.
To set the address on the receiver evaluation board, note the A0–A9 labels
on the board and turn the DIP switches on or off as desired. If a switch is
on, the address line is connected to ground. If it is off, then the address line
is pulled high to VCC.
Figure 4: The Evaluation Board Address DIP Switch
The HHCP and HHLR utilize a ten-position DIP switch that is accessed by
a cover on the back of the remote. The switch numbers match the address
lines with switch number 1 corresponding to A0 and number 10 to A9.
Application Note AN-00300 should be referenced for complete details.
Note:
All address switches ON and all switches OFF are not valid
states and are not recognized by the decoder. At least one switch
must be set differently from the rest.
Using the Kit
Using the kit is straightforward. Simply attach the antenna to the board and
install the batteries. Set the address on the transmitter and on the board
to the same settings, turn on the power to the board, and press a button
on the transmitter. When D0 is pressed, the buzzer sounds; when S1–S7
are pressed, the LEDs turn on. When any button (D0–D7) is pressed on the
transmitter, the corresponding decoder output (D0–D7) is active high (V
CC
)
on the prototyping header.
Note:
All switches (address, protocol select and interpretation
configuration) must match on both the transmitter and the decoder /
receiver board.
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4
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5
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