433MHz LoRa SX1278 long range RF wireless module DRF1278F for arduino

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XL1276-D01 wireless module is SEMTECH’s latest LoRaTM modulation technology wireless chip, the module in addition to the traditional GFSK modulation technology, but also uses the LoRa (remote) spread spectrum technology, with ultra-long distance spread spectrum communication, high anti-interference And minimizes current consumption. Using LoRaTM mode can achieve high -148dbm high sensitivity, and with integrated +20 dBm power output, you can achieve low-power ultra-long distance transmission, the module is suitable for any complex environment of wireless data transmission applications, such as: Table, intelligent home control, automotive electronics, security alarm, industrial monitoring and control systems, long-range agricultural irrigation control systems and other applications. The module can be easily embedded into the customer’s existing product or system design, the standard SPI interface, making communication easy and concise. Customers only in the original micro-control device to compile a simple communication protocol, you can achieve two-way communication to achieve data transmission.

Second: product characteristics

  • FSK / GFKS technology, LoRa (remote) spread spectrum technology
  • Half duplex communication
  • Super anti-jamming (channel rejection ratio: 56db)
  • High Receive Sensitivity -139dbm. (32M Passive 10ppm Crystal)
  • ISM multi-band, no need to apply for frequency free use.
  • Multi-frequency optional, a variety of transmission rate. Can be used in FDMA and FM technology.
  • Intelligent reset, low voltage monitoring, timer wakeup, low power mode, sleep mode
  • Low power consumption to accept current: 10-12mA
  • 256-bit FIFO TX / RX
  • RSSI channel detection function
  • Transmission mode: FIFO / direct mode (recommended FIFO pack mode)
  • Configuration: AFC / air wake-up function / low power consumption / carrier sense / FEC error correction / AEC encryption
  • Ultra-long distance transmission open up to 5KM.
  • Module size: 17 * 16.5mm

Three: product applications

1) remote control and remote data acquisition system

2) wireless meter reading (water meter, meter, gas meter)

3) wireless ordering machine, oil field, mining area, site, factory and other original 485/232 interface system

4) industrial data acquisition, transmission, intelligent control system

5) wireless alarm system

6) intelligent furniture system

7) Infant surveillance system / hospital paging system

8) wireless small data transmission system

Four: interface definition

order definition description Remarks
1 GND Signal ground
2 DIO1 Digital I / O, can be customized
3 DIO2 Digital I / O, can be customized
4 DIO3 Digital I / O, can be customized
5 VCC power supply 3.3V (1.8 ~ 3.6V)
6 MISO SPI data output
7 MOSI SPI data output
8 SCK SPI clock input
9 NSS SPI chip select
10 DIO0 Digital I / O, can be customized Refer to the procedure for interruption
11 REST Reset
12 REST Reset
13 GND Signal ground
14 DIO4 Digital I / O, can be customized
15 DIO5 Digital I / O, can be customized
16 ANT Antenna interface The front end of the module

External interface

Five: parameter performance

project description Minimum value Typical value The maximum value unit
Operating Voltage 1.8 3,3 3.6 V
Operating temperature -20 25 70 °
working frequency 410 433 525 MHZ
Transmit power 19 20 20.5 DBm
Receiving sensitivity FSK @ 1.2K

Frequency deviation 5K

-121 DBm
Lora @ 146bps

BW = 62.5KHZ

SF = 12

-139 DBm
Lora @ 293bps

BW = 125KHZ

SF = 12

-133 DBm


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Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

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Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
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Canada, Europe 10-20 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

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