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.
Document History Product Name SX1278 Wireless Transceiver Product Number LSD4RF-2F917N10 Checker 刘建 Submission Date 20160721 No. Revise History 1 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.
Contents 1 General Description........................................................................................................................................4 2 Technical requirement specifications....................................................................................................... 6 3 Module Mechanical Drawing & Pin Description.......................................................................................... 7 4 Operating Description.......................................
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.
● 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.
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
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 1 VCC Supply voltage 2 GND Ground 3 SI SPI Data input 4 SCK SPI Clock input Add: Building 1, Lierda IoT Park, No.
5 SO SPI Data output 6 DIO1 7 DIO2 8 NSS SPI enabled 9 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. 4 Operating Description The LSD4RF-2F917N10 module is soldered to the applications main board and communication with micro-controller by SPI interface.
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.
6 Antenna specification antenna change may lead further evaluation on emission as per FCC part 15c. Add: Building 1, Lierda IoT Park, No.
Important Notes: 1. Welcome to use the products of the Lierda Technology Co., Ltd.. Before using the Add: Building 1, Lierda IoT Park, No.
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.
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.
