Lierda Science and Technology Group LSD4RF2F917N10 915MHz LoRa Module User Manual
Lierda Science & Technology Group Co.,Ltd 915MHz LoRa Module Users Manual
Users Manual
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| Document ID | 3242311 |
| Application ID | vq2/RXNhqxT000ATtd3fiQ== |
| Document Description | Users Manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 34.41kB (430124 bits) |
| Date Submitted | 2016-12-29 00:00:00 |
| Date Available | 2017-01-09 00:00:00 |
| Creation Date | 2016-12-26 09:40:01 |
| Document Lastmod | 2016-12-26 09:40:01 |
| Document Title | 利 å°” è¾¾ 科 技 有 é™ å…¬ å¸ |
| Document Creator | WPS Office |
| Document Author: | computer |
Lierda Science & Technology Group Co.,Ltd 利尔达科技集团股份有限公司 Operation Manual for Wireless IoT Transceiver Product Name: SX1278 Wireless Transceiver Product Number：LSD4RF-29717N10 Revision : V1.0 Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 Document History Product Name SX1278 Wireless Transceiver Product Number LSD4RF-2F917N10 Checker 刘建 Submission Date 20160721 No. Revise History First FINAL document version Checker Approver Revision 刘建 孙香涛 Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 V1.0 Submission Date 2016-07-21 Contents 1 General Description........................................................................................................................................4 2 Technical requirement specifications....................................................................................................... 6 3 Module Mechanical Drawing & Pin Description.......................................................................................... 7 4 Operating Description.................................................................................................................................... 8 5 Additional information................................................................................................................................. 9 6 Antenna specification................................................................................................................................. 10 Important Notes:................................................................................................................................................. 11 Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 1 General Description The LSD4RF-2F917N10 module is a high-performance RF transceiver with a highly integrated SX127X. Using Semtech’s patented LoRaTM modulation technique can greatly increase the communication distance, which is widely applied to various occasions of short distance IoT wireless communication field. It has small size, low power consumption, long transmission distance, strong immunity from interference and other characteristics. The user can be free to choose different antenna , consequently, is easy to second development and its popularization. KEY PRODUCT FEATURES ● Supply voltage: DC 2.4 ～ 3.6 V ● Operating Frequency:900~925MHz ● RF output power: 19±1 dBm(max) ● High sensitivity：-136±1dBm (@250bps) ● Ultra effective communication distances:5Km@250bps（Urban road environment, not the desert environment） ● Using spread spectrum modem, which is capable of achieving significantly longer range than existing systems based on FSK or OOK modulation. It provides significant advantages ,especially in the terrible noise environment (eg. nearby the strong interference sources and in the natural shielding environment) ● High confidentiality, using LoRaTM modulation , traditional wireless devices can not capture and parse. ● High concealment,it still can normal communication when average power under Digital Noise Floor, wireless monitoring equipment unable to listen to. ● Support LoRaTM, FSK, GFSK, MSK, GMSK and OOK modulation ● Low power consumption ： current in receive mode ≤13mA ； current in sleep mode ≤2uA；Provide CAD functions which separate the calculation and reception, further optimize the power consumption of waking up the window. (the calculating current is about half of receving current). Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 ● SPI communication interface,it can be connected directly to all kinds of microcontroller, the software programming is very convenient. APPLICATIONS ● Automated Meter Reading for water meter, gas meter, electricity meter, thermal meter ● Ultra-long range communication ● Home and Building Automation ● Industrial remote sensing, telemetering communication ● Industrial Monitoring and Control, Wireless Alarm and Security Systems ● Active RFID Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 2 Technical requirement specifications Table 1 Module Specifications Parameter Performance Requirements Supply Voltage DC 2.4 ～ 3.6 V Operating Temperature -40 ～ 85 ℃ Operating Humidity 10%~90% non-condensing Operating Frequency 900~925 MHz Programmable Power Consumption Transmit mode ≤100 mA Receiver mode ≤17mA Sleep mode ≤2uA Remarks Conditions: 900~925 MHz, Pout=17 dBm Conditions: 900~925 MHz, LoRaTM Modem RF output power 19 ± 1dBm Programmable Modulations LoRaTM\2-FSK\GFSK\OOK Recommended: OOK：1.2~32.768Kbps Programmable Bit Rate Range interface type communication interface Module Size (without antenna) LoRa ：0.2~37.5Kbps TM stamp hole Recommended: use LoRaTM at low bit rate (<5kbps) Pitch: 2.0mm SPI 18.4 × 18.4（GB/T1804-c） LoRaTM Unit：mm Static Level Refer to chapter 5 Interface Selection Refer to chapter 5 Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 3 Module Mechanical Drawing & Pin Description As shown in the bottom view of Figure 1, the LSD4RF-2F917N10 connects to the host board via solder pads on the module. Unit： mm Figure 1 LSD4RF-2F917N10 Module Mechanical Drawing Table 2 shows Pin Description ： Table 2 LSD4RF-2F917N10 Pin Description Number Name Description VCC Supply voltage GND Ground SI SPI Data input SCK SPI Clock input Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 5 SO SPI Data output DIO1 DIO2 NSS SPI enabled DIO0 Required， RxDone、 TxDone、 CadDone 10 RST Required, Reset trigger input 11 GND Ground 12 RF 13 DIO5 ModeReady、 ClkOut 14 DIO3 ModeReady、 ClkOut RxTimeout、 CadDetected RF input / output For more information about DIOx that can be found in the chapter 5. Operating Description The LSD4RF-2F917N10 module is soldered to the applications main board and communication with micro-controller by SPI interface. Figure below shows a typical SPI single access to a register. To get the detail description, please consult the latest data sheet of SX1278. Figure 2 SPI Timing Diagram (single access) Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 5 Additional information To maximize RF performance, the user should follow these recommendations: 1. Power Supply It is recommended to use DC regulated power supply to the module, and the small power supply ripple coefficient is required. The module should be reliable grounding, and please pay attention to the correct connection power, if reverse, maybe result in permanent damage to the module. 2. About Antenna Ensure that there is no component, mounting screw or ground plane near the antenna. All these incorrect design can reduce the communication distance of module seriously. 3. Protection of ESD electrostatic Modules can be static tested by connecting discharge 4 kv, air discharge 8 kv; The arc distance module about 10 cm when air discharge; Therefore, it shall takes all necessary ESD measures in order to avoid permanent damage to the device. 4. Trade-offs advice on DIOx DIO has three functions, The first is the RF interrupt flag reflects, the other is the PLL_Lock signal output, a third is Clock signal output of the RF module (generally do not use this function). Under the condition of without considering power consumption, can not use any DIO. In most application scenarios (transceiver, low-power wake up), DIO0 will choose IO, other IO can choice according to the situation. DIO0, DIO1, DIO3 contains all interrupt mapping, If you don't use this feature, DIO0, DIO3 will meet the requirements; 2F717N01 module provides DIO0,DIO1,DIO3 2F717N10 module provides DIO0,DIO1,DIO2,DIO3,DIO4 2F917N10 module provides DIO0,DIO1,DIO2,DIO3,DIO5 2F917N10 module provides DIO0,DIO1,DIO2,DIO3,DIO5 DIO mapping is shown below: Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 6 Antenna specification antenna change may lead further evaluation on emission as per FCC part 15c. Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 Important Notes: 1. Welcome to use the products of the Lierda Technology Co., Ltd.. Before using the Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 products of our company, please read this warning first. If you have already used the product which indicates that you have read and accepted the warning. Using the product indicates that you have read and accepted this warning. 2. The final interpretation and modification of all the information provided to this tool are reserved. No more notification will be given if the information were updated. Publisher: Lierda Science & Technology Co.,Ltd WSN Dept. 2016/ 07/21 FCCID: N8NLSD4RF2F917N10 FCC statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. ·If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. RF exposure warning · The equipment complies with FCC RF exposure limits set forth for an uncontrolled environment. The equipment must not be co-located or operating in conjunction with any other antenna or Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080 transmitter. NOTE: Any changes or modifications not expressly approved by the grantee of this device could void the user's authority to operate the equipment. The module’s FCC ID is not visible when installed in the host, or If the host is marketed so that end users do not have straight forward commonly used methods for access to remove the module so that the FCC ID of the module is visible; then an additional permanent label referring to the enclosed module: Contains Transmitter Module FCC ID: N8NLSD4RF2F917N10; or Contains FCC ID: N8NLSD4RF2F917N10 must be used. This device is intended for OEM integrators only. further evaluation to the host level with regards to un-intential spurious emission as per FCC 15B Add: Building 1, Lierda IoT Park, No.1326, wenyixi Road, Hangzhou, Zhejiang China Tel: +86 571 88800000 Fax:+86 571 89908080
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