Introduction?

Dragino SX127X Mini is a small IoT development board offers a very compelling mix of long range, low power consumption and secure data transmission.It is designed to facilitate beginners and developers to quickly learn LoRa and IoT technology. It help users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to program, create and connect your things everywhere.

SX127X Mini is based on SX1276/SX1278 allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.

SX127X Mini is an Arduino compatible board based on ATmega328P, a low-power CMOS 8-bit microcontroller based on the AVR® enhanced RISC architecture.Dragino Mini is also open source, user can easily program it using the Arduino IDE.

Features:

• Base on ATmega328P + SX1276/78
• Frequency Band: 868 MHZ/433 MHZ/915 MHZ(Pre-configure in factory)
• LoRa™ Modem
• FSK, GFSK, MSK, GMSK, LoRa™and OOK modulation
• Pre-load with Arduino Bootloader
• Able to program via Arduino IDE

Specifications:

LoRa Spec

• 168 dB maximum link budget.
• +20 dBm - 100 mW constant RF output vs.
• +14 dBm high efficiency PA.
• Programmable bit rate up to 300 kbps.
• High sensitivity: down to -148 dBm.
• Bullet-proof front end: IIP3 = -12.5 dBm.
• Excellent blocking immunity.
• Low RX current of 10.3 mA, 200 nA register retention.
• Fully integrated synthesizer with a resolution of 61 Hz.
• FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
• Built-in bit synchronizer for clock recovery.
• Preamble detection.
• 127 dB Dynamic Range RSSI.
• Automatic RF Sense and CAD with ultra-fast AFC.
• Packet engine up to 256 bytes with CRC.
• Built-in temperature sensor and low battery indicator.

MCU Spec

• MCU: ATMega328P
• Flash:32KB
• SRAM:2KB
• EEPROM:1KB
• Clock Speed: 16Mhz

Absolute Maximum Ratings

• VCC: 0.5v ~ 3.9v
• Operating Tempature: -40 ~ 85°C
• I/O pins: 0.5v ~ VCC+0.5V

Common DC Characteristics

• Supply Voltage: 1.8v ~ 3.7v
• Operating Tempature: -40 ~ 85°C
• I/O pins: Refer ATmega328P datasheet

Power Consumption

• Sleep Mode: 22μA
• RX Mode: 7.2mA
• TX Mode: 88mA@ 20dbm

Package

Package Includes

• 1 x SX127X mini XXX

Dimensions and Weight

• Weight: 9g
• Dimension: 41 x 24mm

Shipping Notice

Prices are exclusive of local taxes and import duties.