4 از 5.0 با 7 رای
ماژول ترنسیور وایرلس XL1278 دارای چیپ SX1278 و فرکانس 433MHz
جهت دریافت دیتاشیت sX1278 به این لینک مراجعه نمایید.
SX1278ZTR4-GC wireless module is an RF module based on SEMTECH RF integrated chip SX127X. It is a high-performance IoT wireless transceiver. Its special LORA debugging method can greatly increase the communication distance and can be widely used in short-distance objects in various occasions. Networked wireless communications. It has the characteristics of small size, low power consumption, long transmission distance, strong anti-interference ability, etc. According to the actual application, there are various antenna schemes to choose from. The module is not equipped with a microcontroller chip, which is mainly used for secondary development of customers.
●Working voltage: 2.4V-3.7V
●Industrial-grade active crystal oscillator, suitable for industrial sites with complex environments
●Working frequency band: 410-525MHz
●Transmit power: 19±1dBm(max)
●Ultra high receiving sensitivity: -136±1dBm(@250bps)
●Super long effective communication distance: 5Km@250bps (urban highway environment, non-wild environment)
● Using spread spectrum technology to communicate, in the same urban and industrial application environment, the performance is better than that of RF products using traditional modulation methods (FSK, 2-FSK, 4-FSK, GFSK, PSK, ASK, OOK, etc.) The advantages are particularly obvious in noisy environments (near strong interference sources such as electricity meters and motors, and natural shielding environments such as elevator shafts, mines, and basements).
●High confidentiality, using LoRa modulation method, traditional wireless devices cannot acquire and analyze it
●High concealment, normal communication is still possible when the average in-band power is lower than the noise floor
●Adopt LoRa modulation, compatible with and support FSK, GFSK, OOK traditional modulation
●Support hardware frequency hopping (FHSS), combined with LoRa's spread spectrum technology, can achieve super communication concealment and security
Low power consumption: receive current≤13mA; sleep current≤2uA; provide CAD function, separate calculation from signal reception, further optimize wake-up window power consumption (calculation current is about half of the receive current)
SPI communication interface, can be directly connected to various microcontrollers, software programming is very convenient
●Building automatic centralized reading system, especially suitable for wireless meter reading occasions such as water meters, gas meters, heat meters, electricity meters, etc.
●The occasions that require higher communication distance
● occasions with high requirements for communication security, communication concealment and anti-interference
●Home wireless security, monitoring PTZ, computer room power supply, wireless remote control alarm for fan equipment