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.

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

Range Test

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.

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