433.92/868MHz Wireless Transceiver Modules (RY4432)

RY4432 wireless transceiver module
1. Description

RY4432 adopts Silicon Lab Si4432 RF chip, which is a highly integrated wireless ISM band transceiver chip. Extremely high receive sensitivity (-126 dBm) and +20 dBm output power ensure that the covering of the range and improve the data link performance. Built-in antenna diversity and the hopping function can be used to aggressively improve the performance.


2. Features

Frequency Range: 433/868 (Customizable 240-930 MHZ)
Sensitivity up to -121 dBm
Data transfer rate: 0.123-256 kbps
FSK,GFSK and OOK Modulation mode
1.8-3.6 V Power supply
Ultra-low consumption shutdown mode
Digital received signal strength indicator (RSSI)
Timed wake-up function
10mA (at) receiver status
Data transfer rate:0.1-1000 kbps  
The antenna automatically match and two-way switch control
Configurable packet structure
Preamble detection
64byte transmit and receive data register(FIFO)
Low-power detection
Temperature sensor and 8-bit analog-to-digital      converters
Operating Temperature Range:-40 ~ + 85 C
Integrated voltage regulator
Frequency hopping
Power-on reset function
Built-in crystal adjustment function

3. Application

Remote control
Remote meter reading
Wireless PC peripherals
Industrial control
Home automation remote sensing
Individual data records                                            
Toys control
Sensor network
Tire pressure monitoring
Health monitoring              


Users can set the button transceiver frequency, transmitter power, wireless transmission module, serial number rate of transmission rate, the serial data bits, stop bits, parity bit parameters.

Work mode:
1) Transmitting mode: Send data packets period ( In setup mode, not to send data packets );
2) Reception mode: Enter the receiving mode after power up. Receive data packets and send to the serial ports.
3) Regular transmitting mode: the modules continuously transmit;
4) Regular receive mode: module is often receive state (not forwarding data);
5) Sleep mode: data transmission module in the standby state.
Button operation
1)  SET Button
Press enter setup mode, such as the setting of the last one parameter, then press jump set
mode.
2)  UP /Down Button
In setup mode, changes corresponding to the set parameters by these bottoms
3)  Read Button
Read parameters of module, and updated on the LCD display.
4)  Write Button
The button will be the current display interface parameters of write current connection
module.
5)  Default Button
Button factory default configuration parameters written to the current connection module.
Note: The data transmission module with FLASH, power-down all the parameters set can be saved automatically read the relevant parameters of the plug inside the module after power-on.




Pin NO.Pin nameDescription
1GNDpower ground
2GPIO0NC
3GPIO1GPIO0 pin directly connected to the chip
4GPIO2GPIO0 pin directly connected to the chip
5VCCPositive power supply 3.3V
6SDO0 ~ VDD V digital output, providing serial readback function for
internal control of registers.
7SDISerial data input. 0 ~ VDD V digital input. This pin is a 4-wire
serial data bus serial data stream.
8SCLKSerial clock input. 0 ~ VDD V digital input. This pin provides a 4-
wire serial data clock function.
9nSELSerial interface selection input pin. 0 ~ VDD V digital input. This
pin is to provide select / enable function for 4-wire serial data.
this signal is also used to represent the burst read / write mode.
10nIRQsuspend to output pin
11SDNClose to input pin. 0 ~ VDD V digital input. Except shutdown mode, all
modes SDN = 0. When SDN = 1 the chip will be completely closed
and the register contents will be lost.
12GNDpower ground
13ANT50 ohm coaxial antenna connection
14GNDpower ground