Sx1278 Lora spread spectrum radio frequency module 433MHz spring antenna
Module
Wireless RF Module
Sx1278
Reference price
| 1: | $8.50 |
| 25: | $8.30 |
| 100: | $8.30 |
| 500: | $8.10 |
| 1000: | $7.90 |
| 5000: | $7.60 |
Product Information
Sx1278 Lora spread spectrum radio frequency module 433MHz spring antenna
Model Number:M2021021
Ra-01 and ra-02 wireless spread spectrum modules adopt Lora spread spectrum technology and are developed based on sx1278 chip. They can be used for ultra long-distance spread spectrum communication and are compatible with FSK remote modulation and demodulation technology. They solve the problems that traditional wireless design schemes can not take into account transmission distance, anti-interference and power consumption at the same time. They are suitable for wireless meter reading, building automation, security system and other scenarios.
Ra-01 wireless module UART interface
Package: smd-16, size: 17 * 16 * 3.2mm, communication interface: SPI, programmable bit rate: up to 300kbps, spectrum range: 410-525mhz, antenna form: Spring antenna gain: 2.5DBI, maximum transmission power: 18 ± 1dbm, average working current: (433MHz: T * 93ma; rx12.15ma; standby1.6ma, 470MHz: tx97ma; rx12.15ma; standby 1.5mA), power supply range: 2.5v-3.7v, typical value: 3.3V, Operating temperature: – 35 ℃ – 85 ℃, storage environment: – 40 ℃ – 90 ℃, less than 90% RH
SPI interface of ra-02 wireless module
Package: smd-16, size: 17 * 16 * 3.2mm, communication interface: SPI, programmable bit rate: up to 300kbps, spectrum range: 410-525mhz, antenna form: IPEX antenna, maximum transmission power: 18 ± 1dbm, average working current: (433MHz: T * 93ma; rx12.15ma; standby1.6ma, 470MHz: tx97ma; rx12.15ma; standby 1.5mA), power supply range: 2.5v-3.7v, typical value: 3.3V, Operating temperature: – 35 ℃ – 85 ℃, storage environment: – 40 ℃ – 90 ℃, less than 90% RH
Feature
RF chip sx1278 mainly adopts loratm remote modulation regulator, which is used for ultra long-distance spread spectrum communication. It has strong anti-interference and can effectively reduce current consumption. With the patented loratm modulation technology of Semtech, sx1278 has high sensitivity of more than – 148dbm, power output of + 18dbm, long transmission distance and high reliability. At the same time, compared with the traditional modulation technology, loratm modulation technology also has obvious advantages in anti blocking and selection, which solves the problem that the traditional design scheme can not take into account distance, anti-interference and power consumption at the same time.
LoRa spread spectrum technology
The signal transmission is stable and worry free. The transmission distance and anti-interference ability of spread spectrum communication are more than twice that of traditional single product communication
The bandwidth of the signal used to transmit information is greater than the bandwidth of the information itself, and the bandwidth is used to obtain the signal-to-noise ratio
Application
Smart home: the physical layer technology solution of the home Internet of things has good diffraction performance and villa level coverage. Worry free smart Farm: accurately monitor the details of each operation area for statistical management and find potential risks at the first time. Industrial manufacturing: replace signal cables at industrial sites in a short distance, reduce wiring and facilitate management, Hotel plan to improve production efficiency: support a large number of access points, facilitate unified background management, reduce patrol manpower and improve supervision efficiency
