Lora SX1278 RF Wireless Lorawan Module for Metering

Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Model Number:
Supply Ability:
1000 Piece/Pieces per Month
Packaging Details
Conventional standard packaging
Lead Time
3-5 work days
Product Introduction

Lora SX1278 RF Wireless Lorawan Module for Metering

WSL02-A0 LoRaWAN Module is a low cost, low power and ultra-small size module, embedded with Semtech’s LoRa propriety chip SX1276 and ST’s ultra-low power STM32 serial MCU.

The module designed by Friendcom (Shenzhen) is targeted to application in sensor network and others IOT devices powered by battery which need low power consumption to extend the battery lifetime.

This datasheet will give some details of description of the module, including HW design info, performance validation, and application information.

                                                Simplified Block Diagram

                    Schematic of WSL02-A0


The WSL02-A0 LoRaWAN Module is designed for end device which need long range and low power consumption, such as metering, sensor network, and others IoT application.

Key Feature

Low power consumption:1.45uA sleep current in WOR mode
Ultra-small size:14mm X 20mm,18 pins SMT package
High performance:
160dB link budget, suitable for long range
User-friendly interface: USART/I2C/USB/ADC/GPIOs
Support standard LoRaWAN protocol
Regional band: EU868, US915 and US915Hybrid, CN779, AU915, AS923, KR920, IN865

14(W) X 20(L) X 2.6(H)
18 pins, SMT

Electrical Characteristics

power supply
3.3V type
Sleep current
1.45uA (WDT off)
Operation current (Transmitter+MCU)
120mA @20dBm
Operation current (Receiver+MCU)
16mA @BW125kHz 
Output power
max. 20dBm
-139dBm @SF12, BW125kHz,
<-40dBm above 1GHz
RF port
2 group of USART, include 2pins
1 group of USB, include 2 pins
1 group of I2C, include 2 pins
2 ADC Input, include 2 pins, reuse with LPUART port
Manual reset pin input
Package Information

The WSL02-A0 is available in an 18-pin SMT package as shown below:

Our Company

Friendcom, a provider of wireless M2M solutions, who dedicated to wireless communications research for more than 10 years. As an owner of independent intellectual property of CellMesh wireless fixed network, we provide comprehensive solutions for smart grid, utility metering, wireless connectivity and test equipment. We also serve in the area of smart home,intelligent security, intelligent transportation, precision agriculture, utilities meter data collection, etc.

We persist to create value for clients by continuous technology innovation and invest 10% of revenue for R&D. Hundreds of our engineers focus ontechnology innovation, establish joint laboratories with several world’sfirst-class customers and industry-chain partners for collaborative innovation.We have nearly a hundred patents and software copyrights. 

We also play an important role in the establishment of Chinese wireless communication standard.We cooperate closely with several domestic and overseas first-class universities,research institutions and laboratories, to consolidate and enhance our core competencies, to strive to be the leading supplier of wireless M2M solutions. We’re ready to contribute our effort to promote wireless M2M development and application.

Main Products

433/868/915MHz RF Wireless modules 

Wireless M-Bus USB Adapter with SMA connector

868MHz Wireless M-Bus USB/Adapter 

Vhf Uhf radio 5W output power for data voice transmission

Low power small size LoRaWAN module

Lorawan Gateway

Packing & Delivery
Packages are generally dispatched within 3 days after receipt of payment and are shipped via DHL with tracking and drop-off without signature. If you prefer delivery by DHL Extra with required signature, an additional cost will be applied, so please contact us before choosing this method. Whichever shipment choice you make, we will provide you with a link to track your package online.

Shipping fees include handling and packing fees as well as postage costs. Handling fees are fixed, whereas transport fees vary according to total weight of the shipment. We advise you to group your items in one order. We cannot group two distinct orders placed separately, and shipping fees will apply to each of them. Your package will be dispatched at your own risk, but special care is taken to protect fragile objects.

The images shown are for your reference only and some parts may be little difference. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.




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