Elecrow SX1278 LoRa Module 433M 10KM Ra 02 Wireless Module Ai Thinker Spread Spectrum Transmission Electronic DIY Kit 2pcs/lot-in Integrated Circuits from Electronic Components & Supplies on Aliexpress.com | Alibaba Group

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Product Description

Elecrow SX1278 LoRa Module 433M 10KM Ra-02 Wireless Module Ai-Thinker Spread Spectrum Transmission Electronic DIY Kit 2pcs/lot

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Description

Ra-02 is a wireless transmission module based on SEMTECH's SX1278 wireless transceiver. It adopts advanced LoRa spread spectrum technology, with a communication distance of 10,000 meters. It has strong ability of anti-jamming and has the function of air wake-up Consumption. Can be covering thousands of people in the district environment, particularly suitable for meter reading, smart home, burglar alarm equipment.

The LoRa series module Ra-01 is designed and developed by AI-THINKER Technology. The SX1278 RF module is mainly used for long-range spread spectrum communication. It can resist Minimize current consumption. Thanks to SEMTECH's patented LoRa ™ modulation technology, the SX1278 has a high sensitivity of -148 dBm with a power output of +20 dBm, a long transmission distance and high reliability. At the same time, compared with the traditional modulation technology, LoRa ™ modulation technology has obvious advantages in anti-blocking and selection, which solves the problem that the traditional design scheme can not consider the distance, interference and power consumption at the same time.

Features

LoRa ™ Spread Spectrum modulation technology

Constant RF power output at + 20dBm-100mW voltage change

High sensitivity: down to -148dBm

Half-duplex SPI communication

Programmable bit rates up to 300kbps

Supports FSK, GFSK, MSK, GMSK, LoRa ™ and OOK modulation modes

127dB RSSI dynamic range

Automatic RF signal detection, CAD mode and very high speed AFC

Packet engine with CRC up to 256 bytes

Small footprint dual-row stamp-hole patch package

Shielded housing

Spring Antenna

Package List

SX1278 433M Wireless LoRa 02 Module x 2

Manual and techsupport:

//github.com/IOT-MCU

About Us

Elecrow is an open hardware facilitation company based in Shenzhen, China. Benefiting from the largest electronic market, local manufacture power and convenient global logistic system, a vast number of funny and exciting products are created every day. We integrate resources to serve new era of innovation.

To make your making and innovation easier, we offer various development platform, modules, tools, electronics components,and other open source hardware.we also provide many kinds of service ,include Fusion PCB service, Component Sourcing service and PCB Assembly service etc.

No matter whether you're a curious student, a qualified engineer, or a hobbyist who loves to create, there will always be something here to meet your needs – and if there isn't ,we'd love to know. please Feel free to contact with us.

Customer Satisfaction
  1. Since your feedback is very important to our business`s development, we sincerely invite you to leave positive feedback and 5 stars for us if you are satisfied with our product and service.

  2. For any reasons, you are not satisfied with the items or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve the problems and provide you with the best customer servcies.

Warranty & Return
  1. We do our best to serve our each customer the best that we can do.

  2. We will refund you for items returned within 7 days of you receiving them, for any reason. A full refund will be given if items are returned in their original condition.

  3. We provide 1 month replacement and 12 months maintenance warranties. Items be replaced during the first month or maintained for the first year.

  4. Before returning items, please contact with us and make sure you get our (the seller’s) return address

Payment

We accept payment through Credit Card, paypal or anyway that Aliexpress supports.

Shipping
1. We support world wide shipping with tracking number(Registered airmail) and express(DHL/FEDEX/UPS/EMS).
2. Shipping cost: Click “Shipping and payment” tab on the product detail page, and you will see the delivery details. You can calculate shipping cost by inputting the required information.
3. Time in transit: Transit time varies with different shipping methods.

Carrier Name Estimated Time in Transit from China to Destination Tracking Service
3-5 business days www.dhl.com
3-5 business days www.fedex.com
3-5 business days www.ups.com
5-10 days www.ems.com.cn
7-25 days www.hongkongpost.com

4. Order Processing Time: Orders will be processed within 1-2 business days after payment is cleared.

Tech support
Technical support is to help suggest products to purchase and ensure that those products are working as expected.

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Item Specifics

Application: 
 Computer
Brand Name: 
 ELECROW
Supply Voltage: 
 110-220v
Condition: 
 New
Operating Temperature: 
 Standard
Package: 
 SMD
Dissipation Power: 
 Low
Model Number: 
 RLS00002S
Type: 
 Voltage Regulator
is_customized: 
 Yes
Rohs complaint: 
 Rohs
Item weight: 
 15g
Module: 
 LoRa 02 SX1278
LoRa Module: 
 Ai-Thinker

SHIPPING AND DELIVERY

We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-20 Business days
Canada, Europe 10-20 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

REFUNDS & RETURNS POLICY

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.

If you received the wrong item you can request a refund or a reshipment.

If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of SAJAKS Favorites (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of www.sajaksfavorites.com

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Exchanges

If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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