JDY-08 CC2541 Bluetooth 4.0 BLE Serial Module - Cover Expand

JDY-08 CC2541 Bluetooth 4.0 BLE Serial Module

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DIYElectronics DIYElectronics

9MBTSJDY-08P

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The JDY-08 is a Bluetooth Low Energy (BLE) module built on Texas Instruments CC2541. Compatible with HM-10 Firmware for more advanced functionality.

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This JDY-08 CC2541 Bluetooth 4.0 BLE Serial Module is a very powerful little gadget, despite its small size and inexpensive cost, and is the result of many years of upgrades and developments on the widely popular Texas Instruments CC2541 Electronics module. It has been integrated onto a base plate that can regulate input voltages ranging between 3.3V to 6V, regulating them down to a 3V supply that the JDY-08 utilises.

This small package offers an incredible amount of wireless  Bluetooth Communication functionality, all while focusing on ultra-low energy usage, and can be used with Android, iPhone, Arduino and many other systems for wireless serial (UART) Communication. It supports both Central and Peripheral mode switching, with easy modifications using AT commands – and also the ability to be configured as master, slave or master-slave mode as well.

The base plate that this JDY-08 module has been integrated onto includes polarity reverse protection and a logic level conversion circuit to protect the module from minor errors or ripples and faults, and can operate on any voltage ranging between 3.3V and 6V at an operating current of 9mA, and ultra-low deep-sleep current of only 90uA.

Bear in mind, however, that this is in fact a BLE4.0 module, and despite having "Bluetooth" in its name, it may not be compatible with all Bluetooth protocols, and the modules, devices or other parts you're using will need to offer BLE4.0 support for this module to operate as expected.

Please Note: These modules can be upgraded with HM-10 firmware if necessary, which is surprisingly common in online communities. And just a quick search for “How to Flash HM-10 Firmware on CC2541” will reveal a plethora of information on the precise steps you need to take in order to do so.

 

JDY-08 Bluetooth Module  -  Technical Specifications (JDY-08 Module):

  • Baud Rate                                        

– 115200

  • Working Frequency

– 2.4GHz ISM Band

  • Modulation Method

– GFSK (Gaussian Frequency Shift Keying)

  • RF Power

– ≤4dBm, Class 2

  • Sensitivity

– ≤-84dBm at 0.1% BER

  • Bluetooth Protocol

– BLE4.0

  • Transfer Rate

– Synchronous 6kbps / Asynchronous 6kbps

  • Flash

– 256Kb

  • Support Services

– Central & Peripheral: UUID / FFE0 / FFE1

  • Input Voltage

– 3.3V to 6V DC

  • Power Consumption

– 9mA Transmission / 90uA to 190uA Deep-Sleep

  • Bluetooth Certification

– ROHS REACH

 

JDY-08 Bluetooth Module  -  Technical Specifications (Breakout Board):

  • Communication Rate

– 3KB per Second                                                                   

  • Serial Port Write Support

– 1024Bytes

  • Effective Communications Distance

– 15 to 30 Metres

  • IO Port Control Disconnect

– Supported

  • PWRC Pin Control Sleep

– Supported

 

JDY-08 Bluetooth Module  -  Pin Functions (Breakout Board):

  • PWRC             

– Used to Wake Up the Module (Default is set to Sleep State)

  • VCC

– Voltage Supply: Range between 3.6V and 6V DC

  • GND

– Standard Ground Connection

  • TXD

– Serial Output Pin

  • RXD

– Serial Input Pin

  • STAT

– Used to Actively Disconnect Bluetooth (Default is High / Low Disconnects)

 

Typical Applications for the JDY-08 CC2541 Bluetooth 4.0 BLE Serial Module:

Due to the diverse use cases for Wireless Communications, it’s no surprise that this JDY-08 CC2541 Bluetooth 4.0 BLE Serial Module can be used for an extremely wide range of different applications. However, thanks to the ultra-low energy usage of this module, it is ideally used for projects with similarly low power requirements. These include basic projects like “Key Locators”, basic automation systems, weather monitoring devices, as well as many more unique and exciting projects still to be dreamed up. So get out there and start Making your own projects today, and consider integrating one of these JDY-08 CC2541 Bluetooth 4.0 BLE Serial Modules to give it the freedom to communicate without any physical connections.

 

Additional Resources:

This is a collection of handy Bluetooth and BLE resources that we've collected over time, which has helped us build awesome projects of our own, as well as with troubleshooting projects and assisting customers too. We recommend that you dive right in and learn all you can, or consider brushing up on your knowledge if it's been a while since working with Bluetooth modules.

 

Grade 
16/01/2021

Works well as is.

I got working results without the need to flash the firmware. Just note that the starting/default baud is 115200.

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JDY-08 CC2541 Bluetooth 4.0 BLE Serial Module

JDY-08 CC2541 Bluetooth 4.0 BLE Serial Module

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