–

–

–

–

4

5

Using the Development Boards

After unpacking the development system, attach an antenna to each

board, install the supplied 9V battery, and turn on the power switches. The

encoder and decoder are set at the factory and work straight out of the

box. To create a new operational setup, follow these steps:

1. On the decoder board, hold the LEARN button and press the

CREATE_KEY button to enter Create Key Mode. Release the LEARN

button and press the CREATE_KEY button ten times to generate the

KEY.

2. To use the infrared key transfer, press the IR_RXEN button on the

encoder board to activate the infrared receiver. Hold the IR sections of

the encoder and decoder boards close until the MODE_IND LEDs on

both boards light up.

3. To set Control Permissions, press the LEARN button on the decoder

board.

4. While the decoder’s MODE_IND LED is flashing, press each data line

button on the encoder that is needed for the application.

5. After all the desired data lines have been transmitted, press the

LEARN button again, or wait until the 15 second time-out occurs. The

permissions are now saved in the decoder.

6. Transmit with one or all the data lines held high to confirm that the learn

process was successful.

Troubleshooting

If the boards fail to work out of the box, then try the following:

• Check the battery to make sure it is not dead.

• Make sure that the baud rate switches are set the same on both

boards.

• Make sure that the antenna is connected and has the correct polarity

connector.

• Check to see if the PDN switch is on, placing the encoder and decoder

into Power Down Mode. In most cases, the encoder PDN switch

should be in the up position.

• Make sure that the Encryption Key is set correctly. This key is created

by the decoder and needs to be sent to the encoder before they will

communicate.

• Make sure that the Control Permissions are set correctly. If the encoder

is not set to use a particular line, then when the button on the encoder

board is pressed, the MODE_IND LED on the decoder board lights up,

but the data line LED does not light up.

If all of these appear to be in order, then call +1 800 736 6677 or email

techsupport@linxtechnologies.com for technical support.

The Prototyping Area

The prototyping area is the same on both boards and contains a large

area of plated through holes so that external circuitry can be placed on

the board. This circuitry can be interfaced with the HS Series encoder or

decoder through the breakout header to the right. At the bottom of this

area is a row connected to the 3V power supply and at the top is a row

connected to ground.

All of the data lines are connected to a wire-wrap header to the right,

allowing easy access from the prototyping area. The DATA_IN, DATA_OUT,

and TX_ID lines are also available on the header, as well as the PDN lines

from the RF modules. This allows complete control of the entire system

from the prototyping area, giving the designer a great deal of flexibility in

using the boards.

Figure 5: The Prototyping Area and Power Supply