Ramsey Electronics RRW1B Instruction Manual

Wireless remote receiver repeater

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Ramsey Electronics Model No.
Have you ever been frustrated with the range of your remote
controls? Tired of having to bounce your IR remote off of
ceilings and walls? Do you want to run your system from
another room or floor? Here is the answer to your prayers!
Extend the range of your remote controls through walls, around
corners, and even from outdoors!
The separate IR Receiver module (RRW1A) with sensitive element
can receive your remote control's signal up to 36 feet away before
re-broadcasting it wirelessly!
The receiver (RRW1B) reconstitutes the radio signal using a PIC
micro-controller to restore noisy or weak signals and then re-
broadcasts the IR remote's signal to your components via a wired
high-efficiency IR LED.
Extend the range of your remote control to greater than 100 feet
wirelessly beyond the receive range of the IR sensor. Greater than
300 feet with a directional antenna pair (available separately).
Works with almost any remote control (38 kHz carrier), does not
need to be programmed.
Operate from 8V to 16V AC or DC. Use our AC125 wall adapters
for long operation.
LED indicator lets you know when you are receiving an IR signal
or not.
RRW1B • 1
RRW1B

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Summary of Contents for Ramsey Electronics RRW1B

  • Page 1 36 feet away before re-broadcasting it wirelessly! • The receiver (RRW1B) reconstitutes the radio signal using a PIC micro-controller to restore noisy or weak signals and then re- broadcasts the IR remote’s signal to your components via a wired high-efficiency IR LED.
  • Page 2 Ramsey Electronics publication No. MRRW1B Rev 1.1 First printing: January 2002 MRW COPYRIGHT 2002 by Ramsey Electronics, Inc. 590 Fishers Station Drive, Victor, New York 14564. All rights reserved. No portion of this publication may be copied or duplicated without the written permission of Ramsey Electronics, Inc.
  • Page 3: Table Of Contents

    Ramsey Publication No. MRRW1B Price $5.00 KIT ASSEMBLY AND INSTRUCTION MANUAL FOR RRW1B WIRELESS REMOTE REPEATER KIT (Receiver) TABLE OF CONTENTS Introduction ..........4 Circuit Theory ........5 Learn As You Build .......7 Parts List ..........9 Assembly ..........10 Testing ..........14 Using the RRW1 Pair ......15 Schematic ..........16...
  • Page 4: Introduction

    RRW1B INTRODUCTION Welcome to the RRW1B kit (and if you don’t have the time, the wired and tested version). Let’s take a moment to help you understand the basic workings of IR remote controls and how the RRW1 pair works. This will better help you understand what you are about to build.
  • Page 5 38 kHz for 60% of the one second time frame (0.60 sec.) of it. For a 0, the LED will be switched on and off at 38 kHz for 30% of the time (0.30 sec.) of the entire second. RRW1B • 5...
  • Page 6 The RRW1B will replicate the transmitted data by turning its data out pin on and off at the received data rate. To re-send this data, we have to modulate a 38 kHz carrier again in accordance with the data the IR detector puts out.
  • Page 7: Learn As You Build

    The part is then soldered securely to the board (2-4), and the remaining lead length is then clipped off (5). Notice how the solder joint looks on close up, clean and smooth with no holes or sharp points (6). RRW1B • 7...
  • Page 8: Parts List

    If a problem does occur, the manual will lead you through step by step in the troubleshooting guide until you find the problem and are able to correct it. RRW1B • 8...
  • Page 9 PARTS SUPPLIED WITH YOUR RRW1B (RECEIVER) Capacitors 2 10 pF ceramic capacitor (marked 10 or 10K) [C27,28] 1 0.001 uF ceramic capacitor (marked .001, 102 or 1 nF) [C29] 1 0.01 uF ceramic capacitor (marked .01, 103 or 10 nF) [C20] 4 0.1 uF ceramic capacitor (marked .1, 104 or 100 nF) [C21,24,26,30]...
  • Page 10: Assembly

    ASSEMBLY OF THE RRW1B Assembly of the unit is straight forward but it does require some time and patience. To get our bearings, we will start by mounting the power jack and move on from there. It serves as a good reference point for the other parts.
  • Page 11 12. Install U21, the PIC12C509A (marked RR). Make sure the notch indi- cating pin one is in the same orientation as shown on the silkscreen and Parts Layout Diagram. This is the “brains” of the RRW1B, generating your 38 kHz signal depending on the data seen from the receiver.
  • Page 12 (note: we are trying to avoid the “fire” in fire-it-up). Make sure to check all the capacitors for proper orientation, the micro-controller IC, as well as the rectifier diode and VR20. RRW1B • 12...
  • Page 13 39. The IR LED wiring offers you a bit of flexibility to custom match the RRW1B to your application. You will need to determine how long of a wire you will actually need to fit the job at hand and then cut it to length. The 2 foot piece of wire that is supplied with the kit is more than enough for most of the common component cases available today (we didn’t want to in-...
  • Page 14: Testing

    (on the receiver) will need to be re-adjusted. Use a small screwdriver to adjust R20 on the RRW1B if needed so that the LED just turns off. It may slightly flash a little due to noise in the receiver being seen on the data line. Adjust R20 until the LED just goes out and stays out;...
  • Page 15 I am sure you will think of something clever. The real trick is how to get the IR LED on the RRW1B mounted so that all of your components can its relayed signal. The optimum way would be to use a coat hanger to suspend the LED out in front of the components and have it shine back at them.
  • Page 16 RRW1B • 16...
  • Page 17: Parts Layout

    RRW1B PARTS LAYOUT DIAGRAM RRW1B • 17...
  • Page 18: Troubleshooting

    • AC supply = 6 to 12 VAC or DC supply = 8 to 16 VDC @ 100 mA (+ tip) • Current draw with a 12VDC source averages about 20 mA (RRW1B). Dimensions: • PCB size: 4.0” x 4.7”...
  • Page 19: Warranty

    But on rare occasions a sour component can slip through. All our kit parts carry the Ramsey Electronics Warranty that they are free from defects for a full ninety (90) days from the date of purchase. Defective parts will be replaced promptly at our expense. If you suspect any part to be defective, please mail it to our factory for testing and replacement.
  • Page 20: Using The Rrw1 Pair

    RRW1B REMOTE REPEATER KIT Quick Reference Page Guide Introduction ..........4 Circuit Theory ........5 Learn As You Build ........7 Parts List ..........9 Assembly ..........10 Testing ..........14 Using the RRW1 Pair ......15 Schematic ..........16 Parts Layout ........17 Troubleshooting ........18 Warranty ..........19 REQUIRED TOOLS •...

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