Ra-02 module-LoRaWAN
Ra-02 is a wireless transmission module based on SEMTECH’s SX1278 wireless transceiver. It adopts advanced LoRa spread spectrum technology, with a communication distance of 10,000 meters. It has strong ability of anti-jamming and has the function of air wake-up Consumption. Can be covering thousands of people in the district environment, particularly suitable for meter reading, smart home, burglar alarm equipment.
The LoRa series module Ra-01 is designed and developed by AI-THINKER Technology. The SX1278 RF module is mainly used for long-range spread spectrum communication. It can resist Minimize current consumption. Thanks to SEMTECH’s patented LoRa modulation technology, the SX1278 has a high sensitivity of -148 dBm with a power output of +20 dBm, a long transmission distance and high reliability. At the same time, compared with the traditional modulation technology, LoRa modulation technology has obvious advantages in anti-blocking and selection, which solves the problem that the traditional design scheme can not consider the distance, interference and power consumption at the same time.
Features
LoRa Spread Spectrum modulation technology
Constant RF power output at + 20dBm-100mW voltage change
High sensitivity: down to -148dBm
Half-duplex SPI communication
Programmable bit rates up to 300kbps
Supports FSK, GFSK, MSK, GMSK, LoRa and OOK modulation modes
127dB RSSI dynamic range
Automatic RF signal detection, CAD mode and very high speed AFC
Packet engine with CRC up to 256 bytes
Small footprint dual-row stamp-hole patch package
Shielded housing
Spring Antenna
LoRa ™ spread spectrum modulation technology
– Receive sensitivity as low as -141 dBm
– Excellent resistance to blocking
– Supports preamble detection
– Supports half-duplex SPI communication
– Programmable bit rate up to 300Kbps
– Supports FSK, GFSK, MSK, GMSK, LoRa ™
and OOK modulation modes
– Supports automatic RF signal detection, CAD
mode and ultra high speed AFC
– Packets with CRC, up to 256 bytes
– Small package with double volume stamps
Sending of the relevant data and transmission using Lora module. For the data transmission, the Lora Ra – 02module was used (see figure 3), which is operated through a Raspberry PI single-board computer Fig 3. Lora Ra – 02module
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be enforced and scaled on a town wide level while not abundant hurdles. III. SYSTEM DESIGN A. SEMTECH LoRa RA – 02Module Ra-02 can be used for ultra-long distance spread spectrum communication, and compatible module for energy saving system. These Node 2 air quality sensor values are transmitted to the ESP32 gateway via LoRa RA – 02module which is an LPWAN wireless communication technology as shown in Fig. 3. The sensor data V. RESULTS DISCUSSION A. Experimental results Fig. 8 show the experimental results on PDRs and distances in a case of good line-of-sight and communication. The Ra – 02module is capable of sending data at a distance of 2.5 km and achieves a PDR higher than 96
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module for energy saving system. These Node 2 air quality sensor values are transmitted to the ESP32 gateway via LoRa RA – 02module which is an LPWAN wireless communication technology as shown in Fig. 3. The sensor data
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signals and finally pass it to the arduino. The node also has a LoRa transmitter ( Ra – 02 ) module , Bluetooth module (HC-05), and a 9V battery all interconnected using a breadboard. The Bluetooth Module is able to send real
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8. CONCLUSION Automated attendance collection is achieved by using biometric (fingerprint) scanner R307 where all the registered fingerprints are stored, verified and the verified ID is sent over-the-air using LoRaRA – 02module
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Among the LoRa devices available in the market, the Ra – 02module from Ai-Thinker [72] was chosen to implement communications of the proposed network because of (i) the configuration options, (ii) the price, and (iii) the ease of purchase, given its high availability in the
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e-Gizmo LoRa Ra-02 adaptor. POVLA. Figure 1. Major Part of LORA RA-02 module with adaptor. Pages 2 of 7 pages. 2017 by e-Gizmo Mechatronix Central.
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and RA-02 module , which is up to 1 km. The radius of this range can be achieved by UM402 module either by default configuration or by custom configuration.
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2 2019Among the LoRa devices available in the market, the Ra-02 module from Ai-Thinker [72] was chosen to implement communications of the
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SYSTEM DESIGN. A. SEMTECH LoRa RA-02 Module . Ra-02 can be used for ultra-long distance spread spectrum communication, and compatible FSK remote.
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1 2020which is used in this project is RA-02 module which is based on SX1278 developed by Semtech. Several transmitters are deployed at different
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A set up guide for sending lora data using the arduino uno with the ra-02 module by ai-thinker. Ive seen a few people asking how to set this up in various places.
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