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 Eason wireless module

RF wireless module yl-18rf

Chip solution : Semtech sx1278
carrier frequency :433MHz/490MHz
Transmitting power :≤100mW(20dBm)
Communication distance :3000~5000m
Product size :15mm*15mm*2.4mm
communication interface :SPI
Product introduction : This is a radio frequency wireless module based on Semtech sx1278, which can realize transmitting and receiving functions. When spread spectrum modulation is used, it has very high receiving sensitivity, so it has lower power consumption, longer distance and stronger anti-interference ability than other wireless schemes under the same transmission power. The module is not equipped with MCU, only provides SPI communication interface. Users do not need to understand too complex RF knowledge, nor do hardware debugging. They only need to debug the underlying SPI communication and understand the meaning of the function, then the module can be easily applied to realize the wireless product. The company provides driver software, hardware, and development technical support!

Product overview
This is a radio frequency wireless module based on Semtech sx1278, which can realize transmitting and receiving functions. When spread spectrum modulation is used, it has very high receiving sensitivity, so it has lower power consumption, longer distance and stronger anti-interference ability than other wireless schemes under the same transmission power. The module is not equipped with MCU, only provides SPI communication interface. Users do not need to understand too complex RF knowledge, nor do hardware debugging. They only need to debug the underlying SPI communication and understand the meaning of the function, then the module can be easily applied to realize the wireless product. The company provides driver software, hardware, and development technical support!


Main parameters describe remarks
Wireless solution Semtech sx1278  
Supply voltage (V) DC 1.8-3.6V  
carrier frequency 433MHz/490MHz Set the frequency value arbitrarily within the frequency range
Data flow Half duplex It can be sent and received, but not at the same time
Antenna connector Pad Impedance 50 Ω
transmission distance 3000~5000m Open space @ 3K
Power consumption Transmit ≤ 100mA, receive ≤ 10mA, sleep ≤ 1uA  
Transmitting power ≤100mW(20dBm)  
Sensitive reception -148dBm  
Wireless rate ≤37.5kbp Under Lora mode
communication interface SPI 1.2mm pitch stamp hole pad
Communication protocol User defined  
work environment -40℃~+85℃ No condensation at 10 ~ 90% relative humidity
Appearance size 15mm*15mm*2.4mm With shield




Serial number name Pin function
one ANT Antenna signal pin
two GND Antenna anchor
three TXC RF switch control pin: transmit high level, receive low level
four RXC RF switch control pin: transmit low level, receive high level
five RST Reset pin for reset module and initialization register
6/7/8 DIO 0/1/5 Module common IO port, user-defined use
nine SCK SPI clock input, used to receive MCU clock
ten MISO SPI data output is used for module transmitting data to MCU
eleven MOSI SPI data input is used for module to receive data from MCU
twelve NSS SPI enable, SPI interface of enabling module
thirteen GND Power ground
fourteen VCC Power supply dc1.8 ~ 3.6V
 
Download category Download link
Product description RF wireless module yl-18rf specification


Product application
1. Four meter centralized reading: water meter, electricity meter, gas meter, heat meter, etc
two Intelligent Agriculture: irrigation control, farmland data collection, greenhouse monitoring
three Smart home: wireless switch, smart bulb, home appliance control, intelligent lock
four Hand held equipment: ordering machine, hand copy machine, scanning gun, walkie talkie
five Intelligent transportation: wireless remote control of traffic lights and centralized control system of street lamps
six LED display, electronic label
seven Data acquisition: electronic weighing instrument, grain situation measurement and control, hydrology and water conservancy monitoring
8. Security system: wireless alarm, electronic fence, camera pan tilt control
Intelligent building monitoring and control
10. Medical management: elderly pager, infant monitor, medical equipment and instrument monitoring
11. Conference equipment: voting device, rating evaluator, responder, wireless speaker
12. Asset management: personnel positioning monitoring, material and equipment positioning monitoring
13. Wireless sensing: temperature, humidity, pressure, liquid level, vibration and other wireless sensing
14. Industrial control system: PLC data transmission, automatic control
15. Energy management: substation maintenance of thermal, hydraulic, wind and photovoltaic power generation
16. Wearable equipment: watch, dog ring, ear tag, badge, pendant