2.4G Wireless Transceiver Module XN297L
Product Description
2.4G Wireless Transceiver Module with 4-Pin SPI interface
DL-297L series modules are low-power, high bandwidth wireless digital communication modules working in the 2.400-2.483ghz world-wide ISM band. These RF modules have the characteristics of low cost, small size, stable work and good product consistency. The maximum air rate can reach 2Mbps. It can be widely used in the situations where wireless connection is needed in daily life. It can also be used in industrial control, access control, attendance, monitoring and security industries.
DL-297LD-C series wireless communication modules can be divided into multiple models according to whether they are equipped with MCU, whether they are equipped with power amplification, data interface and packaging mode. Various models in the same series can communicate with each other. All models are advanced in design, with excellent technical indicators, in line with the parameter requirements of FCC specifications, and can meet the certification needs of customers.
Applications
● Wireless toys, Wireless game handles
● Wireless audio and video transmission, wireless headset
● Child finder and tracker
● Medical devices and remote controls
● Logistics tracking, warehouse inspection, RFID, etc
● Consumer electronic wireless applications
● Low power remote sensing and telemetry
● Wireless sensor network applications
Features
● Efficient 4-pin SPI interface;
● Support 1Mbps, 2Mbps wireless transmission rate, high data throughput;
● Modulation by FSK / GFSK;
● Output power of programmable control: 9-35dbm
● Receiving sensitivity: -88dbm at 2m, and the reliable transmission distance can reach 100m
(open air);
● Programmable carrier frequency: 2400-2483.5mhz, 83 frequency bands are optional;
● Flexible configuration of multiple communication channels, and fast frequency point
switching can meet the needs of frequency hopping system;
● Ultra-low power consumption
● Receiving current＜17.5mA
● Emission current < 14mA
● Sleeping current < 3uA;
● Data buffer, burst data transmission, with automatic receiving response and retransmission
processing;
● Support 1-to-6 data communication channel connection;
● Powerful digital features, low-cost MCU can be used to get high-performance RF system;
Download Center
General program configuration process
| NO | Action | Address |
| 1 | Power on defaults to sleep mode | |
| 2 | Clear RX FIFO and status register | 0x07 |
| 3 | Set the rf_cal、bb_cal、demo_cal register | 0x1E、0x1F、0X19 |
| 4 | Open receive channel n（0-5） | 0x02 |
| 5 | Set the address width (3-5 bytes) and address of channel n | 0x03、0x0A ~ 0x0F |
| 6 | Set working frequency point | 0x05 |
| 7 | Set transmission power, receiving low noise discharge current,and data rate mode | 0x06 |
| 8 | Select communication mode: with automatic retransmission, retransmission times, retransmission delay, with automatic response | 0x04、0x01 |
| 9 | If it is a static payload, you need to set the payload length | 0x11 ~ 0x16 |
| 10 | If it is a dynamic payload, read the payload according to the dynamic payload length | 0x1D、0x1C |
| 11 | Set config register, control CE pin to high, enter receiving mode | 0x00 |
Pin Definitions
| Pin No | Pin’s Name | Description |
| 1 | VDD | Power Supply: 3V |
| 2 | GND | Grounding, common ground with the system |
| 3 | IRQ | Interrupt signal |
| 4 | MOSI | SPI data input, MOSI |
| 5 | CE | Mode chip selection signal |
| 6 | CSN | SPI chip select signals |
| 7 | SCK | SPI Clock signals |
| 8 | MISO | SPI data output, MISO |
Size
DreamLNK is a professional high-tech enterprise specializing in ISM band micro-power wireless communication technology, can provide you various RF modules and one-stop intelligent IOT solution! Products include 433MHz RF modules, 2.4G modules, Bluetooth modules, Lora modules, Antennas, Remote control, Door/windows sensors, Smoke detectors, etc. welcome to inquire!