Seeed Studio Semtech LR2021 LoRa Plus Evaluation Kit-EU868
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- • Other Countries: 15 working days
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Seeed Studio Semtech LR2021 LoRa Plus Evaluation Kit-EU868
The LR2021 LoRa® Evaluation Kit, built around Semtech’s 4th‑generation dual‑band transceiver, enables rapid prototyping of high‑speed, long‑range IoT devices. Supporting both Sub‑GHz and The LR2021 LoRa® Evaluation Kit, built around Semtech’s 4th‑generation dual‑band transceiver, enables rapid prototyping of high‑speed, long‑range IoT devices. Supporting both Sub‑GHz and 2.4 GHz frequency bands for global deployment, it also incorporates FLRC modulation to achieve data rates of up to 2.6 Mbps, making it suitable for applications requiring fast and reliable wireless communication.
Designed for seamless integration into existing development workflows, the LR2021 kit is hardware‑compatible with widely used platforms such as Arduino Uno, STM32 Nucleo, and Nordic DK boards. This ensures smooth, flexible development and accelerates the transition from concept to functional prototype.
Features

- High-Speed Data Breakthrough:
The next-generation Semtech LR2021 not only retains the ultra-long-range communication of traditional LoRa but also introduces FLRC modulation, achieving a remarkable communication rate of up to 2.6 Mbps. This capability extends its use to bandwidth-sensitive applications, such as audio streaming and image transmission.
- Universal Hardware for Global Coverage:
With broad dual-band coverage (Sub-GHz & 2.4GHz) and a switch-less front-end design, a single hardware design achieves global compatibility. This significantly streamlines the design process and accelerates your time-to-market.
- Universal Silicon Platform:
By integrating multiple modulation schemes (LoRa, FLRC, FSK, OQPSK) within a single silicon platform, the LR2021 allows developers to choose the optimal combination for any scenario—from ultra-low-power sensors to high-speed controls. Compatible with Amazon Sidewalk, W-MBUS, Wi-SUN FSK, and Z-Wave.
- Best-in-Class Energy Efficiency & Performance:
LR2021 delivers a generational leap, outperforming predecessors like the SX1262. Lower transmission current and higher receiving sensitivity translate directly into longer battery life and more reliable wireless connections.
- Enhanced Channel Activity Detection (CAD):
The LR2021 employs Fast CAD technology featuring an intelligent adaptive threshold and early termination mechanism, which substantially reduces power consumption and the time required for idle channel detection.
- Ready-to-Go for Prototyping:
This integrated kit combines real-time OLED feedback and plug-and-play Grove connectors for rapid sensor integration. Its hardware is pin-compatible with Arduino Uno, STM32 Nucleo, and Nordic DK platforms.
Note:
Learn more about the next-generation performance of the Semtech LoRa Plus™ LR2021.
Technical Specifications
RF Chip Specifications
|
Main Chipset |
Semtech LR2021 |
|
Package Type |
QFN-48 (5x5x0.9 mm) |
|
Supply Voltage |
1.8V - 3.7V (3.3V Typical) |
|
Sleep Current |
470nA (without RTC) |
|
Max TX Current |
Sub-GHz: 105mA @ +22dBm; 2.4 GHz: 27mA @ +14dBm |
|
Output Power |
Up to +22dBm (Sub-GHz) / +12dBm (2.4GHz) |
|
RX Sensitivity |
LoRa SF12: -141.5dBm; FLRC: -111dBm |
|
Communication Interface |
SPI |
General Hardware Specifications
|
Board Dimensions |
65 x 73 x 27 mm |
|
Integrated Display |
0.96" OLED (128 x 64 px) |
|
Expansion Interface |
2x Grove I2C, 1x Grove UART |
|
Debug Options |
SWD, SAMD |
Hardware Overview


Applications
- Global Logistics & Asset Tracking:
Enable seamless global asset tracking. The LR2021 allows devices to automatically comply with regional radio standards, providing uninterrupted data from port to port.
- Wireless Video & Image Transmission:
With FLRC speeds up to 2.6 Mbps, LR2021 sends images within a second, enabling low-power visual monitoring for security and industrial applications.
- Smart Audio Communication:
Makes low-power audio communication practical—enabling safety intercoms on remote worksites and voice-activated sensing in smart environments.
- Converged IoT Networks:
Unify short-range high-speed data collection and wide-area cloud connectivity on a single device, eliminating redundant infrastructure.
- High-Speed OTA Updates:
The high-throughput link ensures rapid Firmware Over-The-Air (FOTA) updates for critical infrastructure sensors with zero downtime.

Part List
| Item | Quantity |
|---|---|
| Wio‑LR2021 Module for 868/915 MHz & 2.4 GHz Bands | x2 |
| Seeed Studio XIAO nRF54L15 Module | x2 |
| LoRa Plus Expansion Board | x2 |
| LF Antenna (868–915 MHz) | x2 |
| HF Antenna (2.4 GHz) | x2 |
| USB Cable Type‑A Male to Type‑C Male (1 m) | x2 |
| U.FL to U.FL RF Coaxial Cable (100 mm) | x2 |
| Read Me Note | x1 |
1. General Shipping Information
- We provide premium shipping methods with a tracking number for each order.
- Shipping addresses must be entered in English without special symbols to help the courier company recognize your address in the system. We will ship strictly according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
- Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
- We can ship all in-stock orders within 1 business day after your order has been confirmed.
- All items are inspected before dispatch and are carefully hand-packed.
- With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.
🚀 Need Faster Shipping?
If you require expedited shipping (Express), please contact our customer support team at info@openelab.io for a customized quote tailored to your location.
2. Shipping Rates & Options
Our shipping rates are calculated based on the order value and destination. Please refer to the tables below for details.
2.1 Germany (Domestic)
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0 - €50.00 | €4.95 | 2-4 Business Days |
| Deutsche Post | Over €50.00 | Free | 2-4 Business Days |
|
DHL Paket (Faster Delivery) |
€0 - €50.00 | €6.95 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
€50.00 - €100.00 | €2.00 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
Over €100.00 | Free | 1-3 Business Days |
2.2 European Union (EU)*
*Including:
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0 - €100.00 | €7.95 | 5-9 Business Days |
| Deutsche Post | Over €100.00 | Free | 5-9 Business Days |
|
DHL Paket (Faster Delivery) |
€0 - €100.00 | €15.95 | 3-7 Business Days |
|
DHL Paket (Faster Delivery) |
€100.00 - €250.00 | €7.95 | 3-7 Business Days |
|
DHL Paket (Faster Delivery) |
Over €250.00 | Free | 3-7 Business Days |
2.3 United States
| Region | Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|---|
|
Continental U.S. (50 States) |
USPS Ground Advantage | €0 - €45.00 | €5.95 | 3-7 Business Days |
| USPS Ground Advantage | Over €45.00 | Free | 3-7 Business Days | |
| USPS Priority Mail | €0 - €45.00 | €16.95 | 1-4 Business Days | |
| USPS Priority Mail | Over €45.00 | €14.95 | 1-4 Business Days | |
|
Non-Continental U.S. (AK, HI, PR, etc.) |
USPS Ground Advantage | €0 - €60.00 | €6.95 | 5-9 Business Days |
| USPS Ground Advantage | Over €60.00 | Free | 5-9 Business Days |
* The regions in the Non-Continental U.S. include: Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and all U.S. Armed Forces addresses. The shipping and delivery to these areas are subject to the Non-Continental U.S. shipping rules.
2.4 International (Outside EU)
For specific international destinations, including Switzerland, United Kingdom, and Norway.
| Order Amount | Shipping Cost |
|---|---|
| €0 - €300.00 | €19.95 |
| Over €300.00 | Free |
Important Notice:
- Inventory Status: Please check the inventory status on the product page. Our system displays real-time stock for our Munich and Long Beach warehouses. If an item is out of stock in these locations, it will be marked as "Pre-order". You can still place an order for these items.
- Pre-order Fulfillment: For "Pre-order" items, we arrange the most efficient logistics solution to ensure you receive your goods as quickly as possible. Your package may be shipped directly from our Shenzhen warehouse. Alternatively, as part of our standard restocking process, we may transport the goods to our Munich or Long Beach warehouse first (typically taking 5-10 business days) before dispatching them to you.
- Split Shipments: If your order contains both in-stock and Pre-order items, we will prioritize shipping the in-stock items from the local warehouse immediately. The remaining Pre-order items will be sent to you in a separate shipment once they are ready.
3. International Warehouse
Our products are stored in our Munich, Long Beach, and Shenzhen warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.
3.1 German Warehouse
For products stored in our warehouse in Munich, we use either Deutsche Post or DHL for shipping, depending on the size of the package. Logistics within Germany are very efficient, with an estimated delivery time of 2-4 business days, ensuring you receive your order quickly and conveniently. For Western EU countries, the estimated delivery time is 4-6 business days. For Eastern EU countries, the estimated delivery time is 6-8 business days.
3.2 US Warehouse
For products stored in our warehouse in Long Beach, we use either USPS or UPS for shipping, depending on the size of the package. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days, ensuring you receive your order quickly and conveniently.
3.3 Chinese Warehouse
For Pre-order items or orders fulfilled directly from our Shenzhen warehouse, we utilize YunExpress for reliable international shipping. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors. Otherwise, products will be restocked to our Munich or US warehouses before final delivery, as detailed in the "Important Notice" above.
4. Customs and Taxes
4.1 How are customs handled by OpenELAB for import or export?
For EU Member States: Whether shipped from Germany or China, we cover all import duties and taxes (DDP), ensuring that you receive your package without any additional costs or hassle with customs.
For countries outside of the European Union, such as Switzerland and Norway, you may be subject to import duties, taxes, and/or customs fees charged upon delivery. These fees vary from country to country and are the sole responsibility of the recipient.
⚠️ Refusal of Delivery: If you refuse to pay these fees upon delivery and the package is returned to us, the refund amount will be calculated after deducting the original shipping costs, return shipping costs, and any applicable customs or storage fees.
4.2 How is VAT charged when the Customer places an order from OpenELAB?
In accordance with the newest VAT e-commerce rules in the EU, OpenELAB shall have the right to charge the amount of VAT at checkout. The standard rate of actual VAT applied is subject to the destination country's regulations. No additional VAT will be charged upon delivery for these orders.









