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** PRELIMINARY DOCUMENT-SUBJECT TO CHANGE **
FEATURES:
2.40GHz-2.48GHz Operation
+11.5dBm Output Power
4+ Mile Range (Line of Sight)
U.FL Antenna Connector for External Antenna
LORA, GFSK and FLRC Modulation Modes
On-Board Chip Antenna
FCC/IC/RED/MIC (Japan) Modular Approvals in Place
Single 3.3-Volt Power Supply
Development Kit Available
Demonstration Source Code Available for Use with the NUCLEO-L073RZ microcontroller
development board (purchased separately)
APPLICATION AREAS:
Real-Time Security
Body-Worn Medical Telemetry
Battery-Powered Home Automation
Electric/Water/Gas Automated Meter Reading
Industrial Monitoring and Control
Active RFID
Long Range, Battery-Powered, Multi-Hop Sensor Networks
1.0 INTRODUCTION
The DLP-RFS1280 is a low-cost module for transmitting and receiving digital data via radio frequency.
All of the DLP-RFS1280's electronics (including an antenna) reside on a single PCB, and all
operational power is derived from a single supply voltage.
The transceiver design consists of a Semtech SX1280 low-power, integrated UHF transceiver and an
antenna switch for selecting between the on-board chip antenna and an optional external antenna.
The hardware is designed for maximum range and optimal battery life.
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Table of Contents
Related Manuals for DLP Design DLP-RFS1280
Summary of Contents for DLP Design DLP-RFS1280
- Page 1 Long Range, Battery-Powered, Multi-Hop Sensor Networks 1.0 INTRODUCTION The DLP-RFS1280 is a low-cost module for transmitting and receiving digital data via radio frequency. All of the DLP-RFS1280’s electronics (including an antenna) reside on a single PCB, and all operational power is derived from a single supply voltage.
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Page 2: Electrical Specifications
Operating Temperature 0-70°C *Please see the Antenna Section for important regulatory details. 3.0 IO PINS IO Pin Definitions GROUND NRESET BUSY DIO1 DIO2 DIO3 MISO_TX GROUND 3.3V POWER SUPPLY MOSI_RX SCK_RTSN NSS_CTS ANTSEL GROUND Rev 1.7 (April 2018) DLP Design, Inc. -
Page 3: Mounting Options
4.1 MECHANICAL DRAWING - Overall Dimensions: 0.8 x 0.92 x 0.135 In. Note: thou = mils or 0.001 inches. 4.2 MOUNTING OPTIONS The DLP-RFS1280 module can be either surface mounted to a printed circuit board or connected using 0.1-inch spaced headers (0.025 sq.-inch posts). Rev 1.7 (April 2018) -
Page 4: Application Development
5.0 APPLICATION DEVELOPMENT Demonstration source code written in the C programming language is available for free download upon purchase of the DLP-RFS1280 or DLP-RFS1280ACT demonstration platform. The code was developed using MBED and Keil uVision for the STMicrocontroller Nucleo microcontroller development module. -
Page 5: Test Mode
Note: Flow diagrams for the demonstration code can be found at the end of this datasheet. Source code for the demonstration EDK is made available upon purchase of the DLP-RFS1280 or DLP-RFS1280ACT. Power for this test platform can be provided by a phone charger battery (purchased separately) or a PC USB port using the included USB cable. - Page 6 Press and hold Button 4. While holding Button 4, press and release RESET. Continue to hold Button 4 until you hear a beep. Release Button 4 and the LCD will display “wait” to indicate that the paired device’s ID data is forthcoming. Rev 1.7 (April 2018) DLP Design, Inc.
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Page 7: Range Testing
Continue to hold Button 6 until you hear a beep, then release Button 6. At this point Transceiver 1 will be performing the Ranging function with Transceiver 2, displaying the range in both feet and meters. Note that the most accurate results are obtained by using the whip antenna. Rev 1.7 (April 2018) DLP Design, Inc. -
Page 8: External Antennas
Any modifications made to the DLP-RFS1280’s printed circuit board, on-board antenna or pre-approved external antenna could void the user’s authority to operate this equipment. Other external antennas can be used with the DLP-RFS1280 module so long as the maximum legal radiated power limit is not exceeded. - Page 9 Under these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. 7.5 OEM PRODUCT LABELING The end product containing the DLP-RFS1280 must be labeled in a visible area with the following text: “Contains FCC ID: SX9RFS2”...
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Page 10: Contact Information
This product and its documentation are supplied on an as-is basis, and no warranty as to their suitability for any particular purpose is either made or implied. DLP Design will not accept any claim for damages whatsoever arising as a result of the use or failure of this product. Your statutory rights are not affected. - Page 11 SW1: Toggle Packet Mode SW2: Toggle Int/Ext Antenna SW3: Adjust Spreading Factor Switch X Pressed SW4: Digitize and Xmit Audio Switch 6 Enter Ranging Mode - SW5: Toggle Carrier Pressed Reset Required to Exit Frequency Low/Med/High Rev 1.7 (April 2018) DLP Design, Inc.
- Page 12 Channels Processed Processed Transmit Halt Timer - Halt Timer - Exit to Main Loop Ranging Packet Calculate - Wait for Range and Interrupt - Read Report to LCD and Accumulate Display Range Data Rev 1.7 (April 2018) DLP Design, Inc.
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