Summary of IM282A-L – 10KM LONG RANGE RADIO MODULE FOR 2.4GHZ BAND
The iM282A-L is a compact, low-cost LoRaWAN module operating in the 2.4 GHz band, designed for battery-driven applications with ranges exceeding 12 km. It integrates Semtech's SX1280 transceiver and a Cortex-M3 MCU to support various topologies like peer-to-peer and star networks. The module features embedded WiMOD LR Base Plus firmware, offering encrypted packet exchange and automatic power saving. Ideal for IoT, smart cities, and industrial monitoring, it supports multiple modulation schemes and interfaces including UART, SPI, and I²C.
Parts used in the iM282A-L:
- SX1280 radio chip by Semtech
- Cortex-M3 MCU
- WiMOD LR Base Plus embedded firmware
- Digital IOs
- Analog Inputs
- UART interface
- SPI interface
- I²C interface
The only available radio chip for LoRa on the market has been the SX1272/76 from Semtech up to now. Things have changed and company IMST came up with the new type of radio chip SX1280 which can work on 2.4GHz band and decided to use this chip for their new LoRaWAN Long Range module, the iM282A-L.
The iM282A-L is a compact and low-cost radio module that operates in the 2.4 GHz frequency band and combines the powerful Cortex-M3 MCU with the new ultra long range transceiver SX1280 by company Semtech. It has been specifically designed for battery driven applications and is able to transfer data without any additional amplifiers up to the distance LoS of more than 12 km.
The embedded WiMOD LR Base Plus provides LoRa®-modem functionalities which allow the implementation of proprietary and cost sensitive radio networks with typical topologies like peer-to-peer and star configurations. The embedded radio protocol offers unacknowledged and acknowledged radio packet exchange with optional encryption and automatic power saving for battery driven applications.
Besides the modem services the firmware includes some example features which are typical for the application area of this LoRa® radio modules: a tiny sensor application which demonstrates a periodic sensor data transmission and a remote control with digital input/output via radio communication.
Application areas include:
- Automated Meter Reading
- Home and Building Automation
- Wireless Alarm and Security Systems
- Industrial Monitoring and Control
- Long Range Irrigation Systems
- IoT (Internet of Things)
- Smart Cities
Features
- Frequency range: SRD Band 2.4 GHz
- Modulation: LoRa®, FLRC, (G) FSK
- RF output power: up to +12 dBm (50Ω pad)
- RF data rate: 476 bps to 2.3 Mbps depending on modulation and settings
- RF range: up to 12 000 m (Line of Sight)
- Operating voltage: 1.8 V to 3.6 V
- Current consumption: 0.8 µA (module in sleep, RTC off), 2 μA (module in sleep, RTC running), 9 mA (Rx, MCU sleep), 34 mA (Tx @ 3.0 V/ +12 dBm, MCU sleep), 25 mA (Tx @ 3.0 V/ +8 dBm, MCU sleep)
- Interfaces: UART (default), SPI*, I²C*
- IO’s: Digital IOs, Analog Inputs
- Dimension (LxWxH): 20 x 25 x 3.3 mm
- Operating temperature: -40°C to +85°C
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LoRaWAN Module Cortex-M3 SX1280 UART SPI I2C price is €24.10
Source: IM282A-L – 10KM LONG RANGE RADIO MODULE FOR 2.4GHZ BAND
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What frequency band does the iM282A-L operate on?
The module operates in the SRD Band 2.4 GHz frequency range. -
How far can the iM282A-L transfer data without amplifiers?
It can transfer data up to more than 12 km Line of Sight distance. -
Which radio chip is used inside the iM282A-L module?
The module uses the new ultra long range transceiver SX1280 by Semtech. -
Can the module support encrypted radio packet exchange?
Yes, the embedded radio protocol offers optional encryption for unacknowledged and acknowledged packet exchange. -
What are the current consumption levels when the module is in sleep mode?
Consumption is 0.8 µA with RTC off and 2 μA with RTC running. -
Does the iM282A-L include a microcontroller unit?
Yes, it combines the radio chip with a powerful Cortex-M3 MCU. -
What communication interfaces are available on the module?
The module provides UART (default), SPI, and I²C interfaces. -
What modulation types does the iM282A-L support?
It supports LoRa®, FLRC, and (G) FSK modulation.
