Blogs

I was looking to get better radio range.. Found XRange

Posted by F. C. Bearsch on July 23, 2014 at 8:30pm

20140616073528-Pic1.jpg?1402929330

As reported from their website, seems like a great upgrade for the telemetry radio, maybe to also carry RC control, and depending on bandwidth  maybe using it also for a digital video feed. 

It is on indiegogo 

https://www.indiegogo.com/projects/xrange-extreme-long-range-wireless-module-for-868-915-mhz

As listed on their site:

XRange: Extreme Long Range Wireless Module based on sx1272 LoRa transceiver for 868 or 915 Mhz (will be available in Q4 2014)

XRange  (sx1272 based ) is extreme long range RF module.It can achieve over 12km(7miles) wireless communication. XRange combines a Cortex-M3 controller with the sx1272 LoRa transceiver.
Xrange-sx1272

What is XRange?

It is a wireless electronics development platform that provides extreme long range spread spectrum communication and has over 12km (7 miles) of usable range.

XRange is based on the SX1272 LoRa™ long range modem, low-power ARM micro-controller and powerful switching power supply.

What can you do with XRange?

  1. Connections in warehouses where data cables and other wiring is difficult or impractical.
  2. Lighting, temperature and other building controls.
  3. Battery-powered data loggers, weather stations, and data logger/controllers.
  4. Solar panels management and monitoring.
  5. Data communication for the Internet of Things.
  6. Remote controlled irrigation systems.
  7. Point-of-sale systems.
  8. Security applications.

Why You should choose the XRange?

  1. It has extreme long range.
  2. It has ability to communicated through walls and other obstructions.
  3. It is low power.
  4. It is low cost.
  5. You can implement many wireless projects with little effort.

 

Features

 

SX1272 LoRa™ long range modem

  • 157 dB maximum link budget
  • +20 dBm at 100 mW constant RF output
  • +14 dBm high efficiency PA
  • Programmable bit rate up to 300 kbps
  • High sensitivity: down to -137 dBm
  • Low RX current of 10 mA, 100 nA register retention
  • Fully integrated synthesizer with a resolution of 61 Hz
  • FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation
  • Packet engine up to 256 bytes with CRC

For more information about sx1272

Low-power STM32L152 microcontroller

  • ARM Cortex-M3 CPU at 32MHz
  • 256 KBytes Flash
  • 2x Op-Amp
  • 12bit ADC 1 Msps 2 channels
  • 12bit DAC 2 channels
  • 2x Comparators
  • USB 2.0 Full Speed
  • Up to 2x USARTs, 2x SPIs 16Mbit/s, 2x I2C
  • Up to 11x timers
  • 96bit unique ID
  • Real-time clock

For more information about STM32L152

Board Power supply (Based on TPS62160)

  • through USB bus
  • external  input voltage 3.3V – 17V
  • system voltage 3.3 or 2.7 selectable
  • output 3.3V/1A or 2.7V/1A selectable
  • output 5V from USB port

I/O Pins

  • Over-current protection on all I/O pins
  • ESD protection on USB port

MCU Flash Programming

  • USB Bootloader
  • SWD connector

Dimensions 78 mm x 42 mm

Pins Description

pinout

Range Test

GM1a

Software development.

We are working to provide open source libraries and firmware.

Mbed

“The mbed development platform is the fastest way to create products based on ARM microcontrollers.”

We are working to provide libraries and firmware based on Mbed platform.

Mbed already provides driver for sx1272.

mbed_ide

Keil MDKWe have developed libraries and firmware based on Keil MDK platform.

E-mail me when people leave their comments –
Follow

You need to be a member of diydrones to add comments!

Join diydrones

Comments

  • eko rahardjo July 24, 2014 at 7:10am

    100mw for 15Km..looks like promising for the who wants fly over 100km if rf output boosted to 1watt..

  • Matt July 24, 2014 at 7:09am

    @Tearig: The RFD900's: http://rfdesign.com.au/index.php/rfd900

  • mP1 July 24, 2014 at 5:58am

    What antennas were used during that 15k test ?

  • F. C. Bearsch July 24, 2014 at 5:16am

    Zouyu, I am after the same thing, differnt application but the same consistent connection needed... Looking forward to testing them

  • F. C. Bearsch July 24, 2014 at 5:13am

    Matt what units are you speaking?

  • Matt July 24, 2014 at 4:02am

    Considering that the RF Designs telemetry MODEMS support 40km range out of the box -- and are 3DR compatible -- I'm wondering what added value this offers.

  • Martin July 24, 2014 at 3:11am

    868 MHz is either 10% duty cycle or LBT (and AFA). I think 868 MHz is a much better frequency because 433 MHz is pretty crowded - everything from garage door remotes to police radios sits near 433 MHz.

  • Moderator
    Gary Mortimer July 24, 2014 at 1:41am

    Yes won't be much use in South Africa either. Buyer beware!

  • Overwatch July 24, 2014 at 1:40am

    Note that 868 MHz is regulated to hell in Europe - 10% duty cycle over an hour effectively cuts your max. 300 kbps data rate to 30 kbps average, making it useless for any kind of video.

  • zouyu July 24, 2014 at 12:48am

    I have two questions.How much about your one board and its whether consist a net . I want to use it to consist a net for communicate in voice.

This reply was deleted.