LA66 LoRaWAN Module

What is LA66 LoRaWAN Module

Dragino LA66 is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRa and IoT solutions. It helps 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.

LA66 is a ready-to-use module which includes the LoRaWAN v1.0.4 protocol. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.

Each LA66 module includes a world unique OTAA key for LoRaWAN registration.

Specification

Input Power Range: 1.8v ~ 3.7v

Power Consumption: < 4uA.

Frequency Range: 150 MHz ~ 960 MHz

Maximum Power +22 dBm constant RF output

High sensitivity: -148 dBm

Temperature:

• Storage: -55 ~ +125℃
• Operating: -40 ~ +85℃

Humidity:

• Storage: 5 ~ 95% (Non-Condensing)
• Operating: 10 ~ 95% (Non-Condensing)

LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm

LoRa Rx current: <9 mA

I/O Voltage: 3.3v

AT Command

AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.

Pin Mapping

Land Pattern

Part Number

Part Number: LA66-XXX

XX: The default frequency band

• AS923: LoRaWAN AS923 band
• AU915: LoRaWAN AU915 band
• EU433: LoRaWAN EU433 band
• EU868: LoRaWAN EU868 band
• KR920: LoRaWAN KR920 band
• US915: LoRaWAN US915 band
• IN865: LoRaWAN IN865 band
• CN470: LoRaWAN CN470 band

LA66 LoRaWAN Shield

LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.

Pin Mapping & LED

Example: Use AT Command to communicate with LA66 module via Arduino UNO.

Example: Join TTN network and send an uplink message, get downlink message.

Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake.

Upgrade Firmware of LA66 LoRaWAN Shield

LA66 USB LoRaWAN Adapter

LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.

Pin Mapping & LED

Example Send & Get Messages via LoRaWAN in PC

Example Send & Get Messages via LoRaWAN in RPi

Install USB Driver

Install Minicom

Use AT Command to send an uplink message.

Send CPU/RAM usage to TTN via a script.

Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed.

Upgrade Firmware of LA66 USB LoRaWAN Adapter