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 Eason wireless module

RF wireless module yl-4432rf

Chip solution :Silicon labs Si4432
carrier frequency :433M/490M/868M/915M
Transmitting power :≤100mW(20dBm)
Communication distance : sight distance 1-2km
Product size :17.0mm*16.5mm*2.0mm
communication interface :SPI
Product introduction Yl-4432rf is a RF wireless module based on Si4432, a highly integrated RF chip of silicon labs. Integrated transmitter and receiver, single module can be transmitted and received. The Si4432 is industry-leading, with high sensitivity and high power coverage. The diversity of packet structure ensures the performance of physical layer data. The diversity of preamble selection provides the possibility of developing a variety of low-power modes. The module is not equipped with MCU, and provides SPI communication interface. Users do not need to understand too complex RF knowledge, and do not need to do hardware debugging, only need to debug the underlying SPI communication, and understand the meaning of the function, you can easily use this module. The company provides software, hardware secondary development technical support!

Product overview
Yl-4432rf is a RF wireless module developed based on silicon labs highly integrated RF chip Si4432. Integrated transmitter and receiver, single module can be transmitted and received. Si4432 has high receiving sensitivity and industry-leading output power to ensure RF coverage and improve link performance. The diversity of packet structure ensures the performance of physical layer data. The diversity of preamble selection provides the possibility of developing a variety of low-power modes. The module is not equipped with MCU, and provides SPI communication interface. Users do not need to understand too complex RF knowledge, and do not need to do hardware debugging, only need to debug the underlying SPI communication, and understand the meaning of the function, you can easily use this module. The company provides software, hardware secondary development technical support!


performance parameter Parameter value
transmission distance Sight distance 1-2km
Wireless solution Silicon Labs Si4432
modulation mode FSK/GFSK/OOK
carrier frequency 433M/490M/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 0.123~256kbs
Data flow Half duplex (can send and receive, but not at the same time)
Antenna connector Pad, impedance 50 Ω
Supply voltage 1.8-3.6V
Transmitting power ≤100mW(20dBm)
Receiving current ≤30mA
Sensitive reception -121dBm
Power consumption Transmit ≤ 80mA, receive ≤ 20mA, sleep ≤ 1uA
work environment -40 ℃ ~ + 85 ℃, no condensation at 10 ~ 90% relative humidity
Volume size 17.0mm*16.5mm*2.0mm
Other functions Refer to the official document of Si4432 chip
 



All dimensions above are in mm

Pin definition and Description:

Serial number Symbol Pin function
one GND Power ground
two GPIO0 Transmit control pin, transmit high level, receive low level
three GPIO1 Receive control pin, receive high level, transmit low level
four GPIO2 Directly connected to the gpio2 pin of the chip
five VCC DC 1.8-3.6V
six SDO Digital output, provides the function of serial read back to internal control register
seven SDI Serial data input is 4-wire serial data stream bus.
eight SCLK Serial clock input provides 4-wire serial data clock function.
nine NSEL The serial interface selects the input pin to provide the select / enable function for the 4-wire serial data bus. This signal is also used to indicate burst read / write mode.
ten NIRQ Interrupt output pin
eleven SDN Turn off the input pin. SDN = 0 in all modes except shutdown mode. When SDN = 1, the chip will be completely closed and the contents of the register will be lost.
twelve GND Grounding power supply
thirteen ANT 50 ohm coaxial antenna
fourteen GND Antenna ground



Download category Download link
Product description 4432 RF front end module


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