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 Eason wireless module

RF wireless module yl-1278rf

Chip solution :Sx1278/Sx1276
carrier frequency :YL-1278RF:433M/490M;YL-1276RF:868M/915M
Transmitting power :≤100mW(20dBm)
Communication distance : sight distance 3-5km
Product size :20mm*29mm*3mm
communication interface :SPI
Product introduction Yl-1278rf is a high-performance, low-power, long-distance micro power wireless spread spectrum coding module, internal automatic spread spectrum calculation and hardware verification processing, users do not need to understand too complex RF knowledge, and hardware debugging, only need to debug the underlying SPI communication, and understand the significance of the function. You can easily apply YL_ 1278rf spread spectrum module. YL_ 1278rf module is very suitable for long distance, low data and low power consumption applications. The RF chip of RF module is based on spread spectrum frequency hopping technology, which surpasses the existing GFSK RF module in stability, anti-interference ability and receiving sensitivity.

Product overview
Yl-1278rf is a high-performance, low-power, long-distance micro power wireless spread spectrum coding module, internal automatic spread spectrum calculation and hardware verification processing, users do not need to understand too complex RF knowledge, and hardware debugging, only need to debug the underlying SPI communication, and understand the significance of the function. You can easily apply YL_ 1278rf spread spectrum module. YL_ 1278rf module is very suitable for long distance, low data and low power consumption applications.
The RF chip of RF module is based on spread spectrum frequency hopping technology, which surpasses the existing GFSK RF module in stability, anti-interference ability and receiving sensitivity.


performance parameter Parameter value
transmission distance Sight distance 3-5km
Wireless solution Sx1278 / Sx1276
modulation mode FSK、GFSK、MSK、GMSK、OOK、LoRa
carrier frequency YL-1278RF:433M/490M; YL-1276RF:868M/915M
Number of channels Set the frequency value arbitrarily within the frequency range
Data connector 1.27mm pitch pin or stamp hole
Communication protocol User defined
communication interface SPI
Programming rate ≤300kbps
Data flow Half duplex (can send and receive, but not at the same time)
Antenna connector Pad, impedance 50 Ω
Supply voltage DC 1.8-3.6V
Transmitting power ≤100mW(20dBm)
Receiving current ≤30mA;
Sensitive reception -148dBm
Power consumption Transmit ≤ 100mA, receive ≤ 10mA, sleep ≤ 1uA
work environment -40 ℃ ~ + 85 ℃, no condensation at 10 ~ 90% relative humidity
Volume size With shield cover 20 mm * 29 mm * 3 mm
Other functions Refer to the official documentation of sx1276 / sx1278 chip
 


Pin definition and Description:

Serial number Symbol Pin function
one GND Power ground
two TX RF switch control pin: transmit high level, receive low level
three RX RF switch control pin: transmit low level, receive high level
four REST Reset pin for reset module and initialization register
5/6/7/8/9 GPIO 0/1/2/3/5 Module common IO port, user-defined use
ten SCK SPI clock input, used to receive MCU clock
eleven MISO SPI data output is used for module transmitting data to MCU
twelve MOSI MCU is used to receive data
thirteen NSS SPI enable, SPI interface of enabling module
fourteen VCC Power supply 1.8 ~ 3.6V
fifteen GND Antenna ground
sixteen ANT antenna



Download category Download link
Product description RF front end module yl-1278rf specification


application area product
Four meter centralized reading Wireless reading of water meter, electricity meter, gas meter and heat meter
Smart agriculture Irrigation control, farmland data collection, greenhouse monitoring
Smart home Wireless switch, intelligent bulb, home appliance control, electronic access control, intelligent lock
Handheld devices Order machine, hand copy machine, scanning gun, walkie talkie
Intelligent Transportation Wireless remote control of traffic lights and centralized control system of street lamps
Data transmission Electronic Kanban, LED display, oil price screen, supermarket shelf label
data acquisition Electronic weighing instrument, grain situation measurement and control, hydrology and water conservancy monitoring
Security system Wireless alarm, electronic fence, camera pan tilt control
smart city Building energy saving, HVAC control, manhole cover anti-theft monitoring, roadside or parking lot management
Medical management Elderly pager, infant monitor, medical equipment and instrument monitoring
Conference equipment Voting device, rating evaluator, responder, wireless headset speaker
asset management Personnel positioning monitoring, material and equipment positioning monitoring
Wireless sensor Wireless monitoring of temperature, humidity, pressure, water quality, liquid level, vibration and other sensors
Industrial control system PLC data transmission and automatic control
energy management Maintenance of hydropower, wind power, photovoltaic power and other substations
Wearable devices Watch, dog ring, eartag, badge, pendant