Features Complete Receiver Decoder. Small Form Factor Range Metres

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Features Complete Receiver Decoder. Small Form Factor Range Metres

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RECEIVER DECODER
Features Complete Receiver Decoder. Small Form Factor Range Metres
Easy Learn Transmitter Feature. Learns transmitter Switches Digital Serial Data outputs Outputs, Momentary Latching.
RDF1-433
Minimal external components
Direct Drive Shows Data Reception Secure Data Protocol Supply Compliant Licence Free Compatible with RF800 series Encoder IC's HORNET, FIREFLY, series transmitters
Applications
Remote Control Radio Telemetry RFID
Description
RDF1 complete receiver decoder module one, providing complete radio system with four digital outputs single serial data output when used with Solutions FIREFLY, HORNET series Handheld transmitters. Dependant transmitter, system using RDF1 achieve 200m range. RDF1 module consists front super-heterodyne receiver embedded microcontroller which decodes string compatible transmitter outputs telemetry lines serial data. module easy-to-use 'LEARN' facility, capable storing pairings within internal volatile memory (EEPROM).
Part Numbers
Part Number Description Compatible Transmitters Encoders FIREFLY HORNET RF800 Chipsets
RDF1-433
Superhetrodyne Receiver Decoder 433MHz
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©2008 4001, England.
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RECEIVER DECODER
RDF1-433
RSSI
LRN/LED
MOM/LTCH2
MOM/LTCH1
SERIAL
Description
Name
RFIN RSSI
Description
power supply needs stable regulated with <10mV ripple
ground input (Antenna) Connection Connected Ground Connection Received signal strength indicator Power Supply Connected Ground Connection Connected Multi Function
LRN/LED
This input used decoder module `Learn Mode' `Erase Function' also used drive Status LED. These outputs normally high asserted when relevant inputs learnt transmit device asserted.
MOMLTCH2 MOMLTCH1 SERIAL
These pins read power action outputs 1-4. Momentary action connection ground. Latching using open circuit. table normal mode this outputs serial data reception valid data string.
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©2008 4001, England.
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RECEIVER DECODER
RDF1 Application Circuit
RDF1-433
470R LEARN
SERIAL DATA
RDF1 requires only addition following components `Learn' switch which used process learning transmitter/encoder decoder also initiate erasure encoder information. series Resistor which indicates status learn process, erase process also data reception status. Option links (LK1 LK2) which configure action digital outputs.
Custom versions this product available, please contact sales department further details
Compatibility with Solutions Transmitters: RDF1 receiver decoders compatible with HORNET, FIREFLY, series ready operate Handheld transmitters. This enables designer integrate remote control function easily into application using ready made transmitter.
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©2008 4001, England.
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RECEIVER DECODER
System Functional operation
RDF1-433
Digital Data Outputs Each Solutions transmitter contains secure serial identity. When switch pressed, transmitter emits unique secure signal. Receiver learn this signal allocate output(s). transmitter switch paired many receiver's outputs, Many transmitters switches paired single receiver output. This enables transmitter switch control many receivers outputs, Many transmitters switches control receiver output only limitation that each receiver maximum capacity pairings, (can from same number transmitters). Hint: same transmitter taught number receivers create `master keys'. Learn: Learn Mode activation achieved pulling this input briefly Paring Procedure (Learning Transmitter Switch RDF1 digital output) application circuit) Select receiver output learn onto: Briefly operate RDF1 Learn switch once Learn will flash once indicate output selected After stops flashing, press Learn switch again select next output channel. Repeat step until required output selected. Operate Transmitter button that want learn selected RDF1 output. Learn will then illuminate, operate same transmitter button again. Learn will then flash indicate learning complete. Erase Mode: Erase Mode achieved pulling this input seconds. This causes internal EEPROM erased pre-learnt Transmitter pairings.
Digital Output Configuration Momentary Latching These high impedance inputs used digital outputs momentary latched actions This output valid duration valid press transmitter switch Latch: This output changes state each valid transmitter switch press. Link Positions Link1 Link2 Closed Closed Closed Open Open Closed Open Open Digital Outputs Latch Latch Latch Latch Latch
Latch Latch Latch
Latch
Outputs Outputs digital CMOS/TTL (PIC Micro) with series protection resistor. Outputs normally high, active low. Each sink/source 25/20mA.
RDF-a Sept ©2008 4001, England.
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RECEIVER DECODER
RDF1-433
Serial Data Output RDF1 serial data output. This outputs serial number, button battery status transmitter encoder. This data directly microcontroller RS232 type driver circuit which then directly serial port. Serial data output initially again every second whilst data being received from transmitter. i.e. this output valid regardless whether Transmitter/Encoder been learnt RDF1 not. serial data packet contains learn show encoder input learnt. Serial Data Format Serial Data sent every second stream bytes 9.6K baud. serial data format data bits with stop bit, parity. Serial data output form Decoder chip whenever valid data packet from compatible Solutions transmitter/Encoder received regardless learn
bytes data transmitted Line feed (last character) Carriage return Battery Status Learn Status Encoder Input information
Encoder serial number Output from Serial Data
Encoder Serial Number [NN]: made 8-bit bytes where most significant byte transmitted first. This provides total 65,536 possible serial numbers. Example: 12AB (hexadecimal) 0001 0010 1010 1011 (binary)
Encoder Input Information [XX]: made 8-bit bytes. high order byte sent first representing inputs down where input input order byte sent next representing inputs down where input input state represents encoder input active. Using this method inputs multiplexed giving maximum versatility. Example: 00000000 00001000 Shows input active. 00000001 00000000 Shows input active 10000001 00000001 Shows inputs active
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RECEIVER DECODER
Status [STAT]: status byte made 8-bit byte follows: Bit-7 down Description Reserved Learn status Battery status Details future usage encoder been learnt encoder battery encoder battery
RDF1-433
Example:
00000010 encoder battery encoder been learnt 00000001 encoder battery low, encoder been learnt
Carriage Return [CR] Line feed [LF] mark serial packet ascii characters carriage return (hex sent followed (hex 0A).
Custom Versions Custom versions transmitters Receivers chipsets available provide bespoke remote chipset applications. Please contact sales department further information. *NOTE: Serial Data output common across entire RF80n RDF1 range, therefore inputs states sent. When using encoders with lower numbers inputs un-used bits
RDF-a Sept
©2008 4001, England.
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RECEIVER DECODER
Antenna Design
RDF1-433
most applications 17cm piece wire quite adequate modules. range achieved from system dependent choice position antenna. space around antenna important antenna itself. optimum position locate antenna that protrudes directly transmitter box. this possible other design constraints, keep antenna, particular, `HOT' away from other metal system such transformers, batteries tracks, especially ground planes. further information Antenna design please full product catalogue. Mechanical Details
50.50mm
18.50mm
2.54mm
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©2008 4001, England.
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RECEIVER DECODER
Absolute Maximum Ratings
Supply Voltage (+5Vcc GND).-0.3 Volts. Storage Temperature.-30 Celsius. Operating Temperature. Celsius.
RDF1-433
Technical Specification
Ambient temperature Celsius.
Electrical Specification Supply Voltage Supply Current Receiver Frequency Receiver Frequency Working Frequency
(custom Frequencies Available)
Typical
Dimension
Note
Data output voltage: (any data output) Logic Logic High Data output current: (any data output) Logic Logic High
Turn Time
-3dB Bandwidth Sensitivity (100% Level Emitted Spectrum Compliance
more information general enquiries, please call; Solutions Ltd., Unit Cliffe Industrial Estate, South Street, Lewes, Sussex, 6JL. England. (0)1273 000. (0)1273 661. Email sales@rfsolutions.co.uk http://www.rfsolutions.co.uk Solutions member Power Radio Association.
Information contained this document believed accurate however representation warranty given liability assumed R.F. Solutions Ltd. with respect accuracy such information. R.F.Solutions critical components life support systems authorised except with express written approval from R.F.Solutions Ltd.
RDF-a Sept
©2008 4001, England.
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Features Complete Receiver Decoder. Small Form Factor Range Metres

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