No hay artículos en el carro
No hay artículos en el carro Descripción general del producto:
HopeRF RFM95W 915Mhz - LoRaTM Transceptor inalámbrico de ultra largo alcance (funcionalmente comparable a SX1276) Los transceptores RFM95W cuentan con el módem de largo alcance LoRaTM que proporciona comunicación de espectro extendido de alcance ultra largo y alta inmunidad a las interferencias mientras minimiza el consumo de corriente.
Utilizando la técnica patentada de modulación LoRaTM de Hope RFM95W puede lograr una sensibilidad de más de -148dBm utilizando un vidrio de bajo costo y una lista de materiales. La alta sensibilidad combinada con el amplificador de potencia integrado de +20 dBm ofrece un presupuesto de enlace líder en la industria, lo que lo hace óptimo para cualquier aplicación que requiera rango o robustez. LoRaTM también proporciona ventajas significativas tanto en el bloqueo como en la selectividad sobre las técnicas de modulación convencionales, resolviendo el compromiso de diseño tradicional entre rango, inmunidad de interferencia y consumo de energía.
Características:
· Módem LoRaTM.
· Presupuesto máximo de enlace de 168 dB.
· +20 dBm - 100 mW de salida RF constante frente a alimentación V.
· +14 dBm PA de alta eficiencia.
· Velocidad de bits programable de hasta 300 kbps.
· Alta sensibilidad: hasta -148 dBm.
· Extremo frontal a prueba de balas: IIP3 = -12,5 dBm.
Excelente inmunidad de bloqueo.
· Corriente RX baja de 10,3 mA, retención de registro de 200 nA.
· Sintetizador totalmente integrado con una resolución de 61 Hz.
· Modulación FSK, GFSK, MSK, GMSK, LoRaTM y OK.
· Sincronizador de bits integrado para recuperación de reloj.
· Detección de preámbulo.
Rango dinámico RSSI de 127 dB.
· Detección automática de RF y CAD con AFC ultrarrápida.
· Motor de paquetes de hasta 256 bytes con CRC.
Sensor de temperatura integrado e indicador de batería baja.
Tamaño del módulo: 16 x 16 mm.
Kody
Comentado en los Estados Unidos el 27 de enero de 2024
This module is breadboard friendly if you make it breadboard friendly. Discouraged to see so many people give up when improvising solved the problem in 60 seconds. Here is one of the many ways you can make it work. No complaints.
Hussein
Comentado en los Estados Unidos el 22 de septiembre de 2024
Not enough support, really confusing to set up
Rituals Art
Comentado en los Estados Unidos el 20 de noviembre de 2023
Hello there, nice to meet you! ;o)My engineer hubby, was thinking about reviving a well loved aural artwork of mine, with new devices and chips.When I first saw the Lubeby Smart HopeRF Original sx1276 Based RF Module, LoRA 1276 RFM95W pair of chips on Amazon, I ordered the set right away, knowing we could update my sound artwork at last. Long story short, these chips would be ideal for the art project which needs to transmit data from outdoors to an indoor location. The 915MHz range is an ISM band, and so it is ‘available’ for such applications.Just so you know: an earlier iteration of this oversized installation several years ago required a desktop computer, a MIDI sound generator, and a direct wired connection between all the components. These days, with new, improved low-power processors and these low-powered radio chips, the same project can easily revived to run off of solar power, eco-friendly for the outdoor unit and the indoor unit can run off of a USB power adaptor plug.He made a point of reviewing current software as part of the update. There are a number of packages that run on the Linux OS, and is supported with a processor like the Raspberry PI or the Arduino processor modules. Everything looked like it's a go! ;o)As luck would have it (and to our everlasting disappointment), the modules arrived and my hubby was immediately confronted with several problems. Upon rechecking the images of these items in their listing, he says he ‘saw’ rows of holes, and assumed they were for standard header pins/connectors. Upon closer examination of the actual modules, he commented on the distance between the holes is slightly less than the standard 2.54 mm. In reality, the hole centers are 2.0 mm. He comments that he had to "jump through several hoops to resolve what should have been there in the first place," namely, a list of related components to make these chips easily useable. It's not fun to take extra steps when the products could be more accessible!The required parts to evaluate these chips, would be breakout boards and an antenna to complete the radios to make this art project viable. He's now back to the drawing board, to better determine how we can get to the finish line. To say this is a setback, is an understatement.In summary, after much thought, we are giving a 2 star rating mainly due to the lack of documentation describing what ‘else is needed’ to use the modules for any application.It's my hope the manufacturer/seller can rectify this situation... as we really want to move forward with these affordable chips.***********************************************************May Your Holidays Be Warm, Cherry And Bright! ;o)Cheerio and Best of Luck in all your endeavors! Hopefully, this review was helpful.
Vile Lizard
Comentado en los Estados Unidos el 4 de octubre de 2023
These modules work fine, and would be nice for integrating into a PCB design since the castellated pads make for easy soldering.However, the pin spacing is 2mm rather than the standard-ish 0.1in/2.54mm, so they don't fit regular header pins or prototyping boards.You can make it work by soldering it to a daughterboard or using wires rather than header pins, but really, if you're looking for prototyping module, just look elsewhere. There are tons of SX1276 modules on the market. If you want it for a soldered-in-place design, go for it.
Jim M
Comentado en los Estados Unidos el 16 de octubre de 2023
These are very tiny boards that are a little difficult to work with directly, but they do work. I had to solder a bunch of small wires to the pin holes because standard breadboard-sized pin headers are too big. These boards don’t have onboard antennas, but it was easy enough to make small 6-inch dipoles with a couple of wires. The impedance was probably not a great match, but it's better than nothing. The boards absolutely must have an antenna attached while transmitting to avoid damage.
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