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- SKU: 06209
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Ebyte E73-2G4M04S1D 2.4GHz nRF51822 Nordic BLE 4.2 Wireless Bluetooth Module
E73-2G4M04S1D is a SMD bluetooth wireless module based on NORDIC's nRF51822 RF chip. NRF51822 has high-performance ARM CORTEX-M0 core and Bluetooth 4.2 RF transceiver and protocol stack, and has abundant peripheral resources such as UART, I2C, SPI, ADC, DMA, PWM, etc. The module brings out almost all IO ports, which is convenient for users to conduct multi-faceted development, Please see pin definitions for details. The module has built-in PCB antenna and can connect other antennas through IPEX.
The product has obtained FCC, CE, RoHS and other international authoritative certification reports, users do not need to worry about its performance. We use a 32MHz high precision low temperature drift active crystal to ensure its industrial properties and stability.
Features
- Communication distance tested is up to 100m
- Maximum transmission power of 2.5mW, software multi-level adjustable
- Support bluetooth 4.2 and bluetooth 5.0
- Built-in 32.768 kHz clock crystal oscillator
- Support for the global license-free ISM 2.4GHz band
- Rich resources, 256KB FLASH, 16KB RAM
- Support 2.0V~3.6V power supply, more than 3.3V power supply can guarantee the best performance
- Industrial grade standard design, support -40 ~ 85 °C for a long time
- Support onboard PCB antenna and IPEX interface, users can choose according to their needs
Specifications
- IC: nRF51822
- Frequency: 2.4GHz
- Protocol: BLE 4.2
- Transmitting power: 4 dBm
- Distance: 0.1km
- Communication Interface: I/O
- Operating temperature: -40 to +85℃
- Operating humidity: 10 to 90%
- Storage temperature: -40 to +125℃
Applications
- Smart home and industrial sensors
- Security system and positioning system
- Wireless remote control, UAV
- Wireless Game Remote Controller
- Health care products
- Wireless voice, wireless headset

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)




