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- SKU: 06364
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Ebyte E28-2G4M20S SX1281 20dBm 2.4GHz Long Range 6000M LoRa Bluetooth Module - SPI Interface
E28-2G4M20S is a 2.4GHz bluetooth module designed by Chengdu Ebyte. The IC SX1281 features multiple physical layers and various modulating methods such as LoRa, FLRC and GFSK. The special modulating and processing methods enable longer operating range with LoRa and FLRC modulating, and the GFSK method covers BLE protocol.
Features
- Under ideal conditions, the communication distance can reach 6km
- Built-in PA+LNA, maximum transmit power 100mW
- Compatible with BLE protocol
- Support license-free ISM 2.4GHz frequency band
- Supports data transmission rate of 0.476k~2Mbps
- Supports multiple modulation modes (GFSK Mode, FLRC Mode, LoRa Mode)
- Supports 1.8~3.6V power supply, and any power supply greater than 3.3V can ensure the best performance
- Industrial grade standard design, supports long-term use at -40~85℃
- Dual antennas are optional (IPX/PCB), which facilitates user secondary development and integration
- The rate is adjustable, up to 1.3Mbps in FLRC modulation mode
- Excellent anti-clogging properties
Specifications
- IC: SX1281
- Frequency: 2.4GHz
- Power: 20dBm
- Distance: 6km
- Communication Interface: SPI
- Operating temperature: -40 to 85℃
- RF interface: IPEX / PCB
- Size: 26.5 * 15 mm
- Package: SMD
Applications
- Smart home and industrial sensors, etc.
- Security system, positioning system
- Wireless remote control, UAV
- Wireless game remote control
- Medical health products
- Wireless voice, wireless headset
- Application in the automotive industry


Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)




