SX1278 LoRa Long Range Data Modem

26398 | SX1278 LoRa Long Range Data Modem
26398 | SX1278 LoRa Long Range Data Modem
26398 | SX1278 LoRa Long Range Data Modem
26398 | SX1278 LoRa Long Range Data Modem

C$10.50

Availability: In stock (can be backordered)

3 - 9 C$9.45
10 - 24 C$8.93
25 + C$8.61
- +
GTIN: 4260474033980 SKU: 26398 Categories: , Tag:

This super tiny 433MHz SX1278 LoRa Wireless Data Modem Module is just 17x17mm small and offers already with the included coil antenna an impressive range of about 5km.

= FSK/GFSK , LoRa(Long Range) spread spectrum technique

= Half-duplex communication

= Excellent blocking immunity

= Channel rejection ration(ADJ):56dBm

= High RX sensitivity : -139dBm

= ISM multiband, free of charge with no need to apply for frequencies

= Optional multi-frequency, multiple transmission rate can be applied in FDMA and FM technologies

= Intelligent reset, low voltage monitor, timing wakeup, low-power mode, sleep mode

= Low power RX current: 12~13 mA

= 256 Bytes FIFO TX/RX

=ISSI channel detection

= Transmission mode: FIFO / direct mode (recommend FIFO packet mode)

= Configuration: AFC, air wakeup, low power carrier sense, FEC error correction, AEC encryption

Application:

= Remote control and data collection system

= AMR (water meter, ammeter and gas meter) automated meter reading

= Wireless handheld unit, oil field, mining area, construction site, factory

= Industrial data collection, transmission and intelligent control

= Wireless alarm system

= Smart home system

= Baby monitor, Hospital calling system

= Small size wireless data terminal

2 reviews for SX1278 LoRa Long Range Data Modem

  1. Rated 5 out of 5

    MarcMarc –

    After a web search, i don’t found details about if the pins (except the vcc at 3.3v) are or not 5v tolerant but because all others similar boards look 5v tolerant, i have tried it on one of my 3 units purchased.. after 24hrs of running well, less any fail, i have put a second one to communicate each other for an other 24hrs, less any fail.. so those ones look 5v tolerant. the only one thing that i don’t have found (and the documentation of the LoRA library don’t talk about) is how to send variable numbers (of sensors) only.. no string, no text, just variable numbers but look not documented (or impossible) when the value is higher than a byte (float numbers in my case)..happy to have extra data on the receiver side like:- signal to noise ratio (SNR in dB)- the signal level (RSSI in dbm)- the frequency deviation (tx freq compared to rx freq in hz)the pinout space is very tiny (look half of a breadboard) and was a puzzle to me until an idea appear simple to wire it with jumpers wires for breadboard (cutted at the half of length as on the pictures), the wire space is almost ideal (i have sacrificed dio3, unless anyway) and so, black to black wires fit with the grounds pcb (11 wires for 12 holes pcb).. with a 330uf on the 3.3v (from Arduino Uno) and all others pins directly wired to Arduino Uno is more simple now. I have saw few YouTube examples for LoRa communication but i never take attention of the strings only way (i can’t to put alarms on the values because it’s in string format).. my next tests will be the range/distance.. be aware that the 433mhz band (like others internet of thing band, in my case many acurite meteo stations/sensors outside on 433Mhz band) transmit around and to give a chance of a good communication, an other frequency than the basic 433.000Mhz (and the common/popular 433.920Mhz) is a must, both are the most busy frequencies saw with my SDR-RTL which is useful to find what frequencies are quiet around me.. i can see the band almost like a spectrum)..hope that help somebody to read what i have learned/experienced..

  2. Rated 4 out of 5

    m.p (verified owner) –

    This is a good little module. Works well with some of the MicroPython libraries out there and the range with the included coil antennas in an open field was about 1.5km. Replacing them with a simple wire whip increased it to around 4km. A dense downtown setting reduced the range to around 350m and 800m with the coil and wire whip, respectively. This was with a pretty noisy setup (breadboard with a lot of wires) so a better installation with a good ground plane would likely help quite a bit. If you’ve read the articles where people talk about getting 20, 50, 100km out of a LoRa setup and are hoping to replicate those ranges, this is not the device to do that with.

    Note that if you are in North America and are looking to use this for a project it’ll be fine but if you want to develop a product around it, you can’t use the 433MHz band for that – you will need a device that runs at 915MHz. Check your country’s frequency spectrum allocation to confirm.

    https://www.thethingsnetwork.org/docs/lorawan/frequencies-by-country/

    All in all, a great little radio, easy to use, and a really good price. Just can’t use it if you want to build something with it to sell.

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