https://github.com/EmenstaNougat/ESP32-BlueJammer

The ESP32-BlueJammer (Bluetooth jammer, BLE jammer, WiFi jammer, RC jammer) disrupts 2.4GHz communications. Using an ESP32 and nRF24 modules, it generates noise and unnecessary packets, causing interference between the devices communicating, making them unable to work as intended. Ideal for controlled disruption and security testing.

The ESP32-BlueJammer (Bluetooth jammer, BLE jammer, WiFi jammer, RC jammer) disrupts various devices using an ESP32 and nRF24 modules, causing plenty of noise and sending unnecessary packets (DoS).

It interrupts:
The whole 2.4GHz broadband! Everything that works on 2.4GHz is being interfered, like:
audio in speakers being transmitted over bluetooth, microphones on 2.4GHz, smartphone connections, WiFi, RC Drones (etc.), IoT devices, smart gadgets, wireless keyboard & mouse, just anything on 2.4GHz!

Ideal for controlled disruption and security testing. Based on 2.4GHz communication.

It has a big range (over 30Meters+ - may vary on your antenna and hardware setup!) on newest Bluetooth versions with casual 2.4GHz antennas, you can easily increase this as well by taking some simple "bigger" router antennas. An amplifier (2.4GHz) may be a good option too!

Remember that jamming is illegal and should not be used with malicious intent!

ESP32-RF DIY-PCB: This PCB can fit an ESP32-wroom-32U/E DevKitC and 2 nRF-modules, along with an 0.96" I2C OLED, LEDs and switches.
Remember: It is not intended for illegal use!
For this one, all you need is listed below:

Required:

• ESP32 Dev Module (Recommended: ESP32-32U CP2102, any ESP32 should work as long as it has the needed pins, 38P required!)
• nRF24L01+PA+LNA (2x)
• 10-100uF Capacitor (2x) (any voltage above 5V)
• 0.96" OLED Display I2C
• Slide Switch (2x)
• LEDs: 3mm LED
• Resistor kit
• R1 = 1kOhm
• R2, R3, R5, R7 = 47kOhm
• R4, R6 = 100kOhm

Additional:

• TP4056 Charging Module (Micro-USB/Type-C)
• JST PH 2.0 Connector
• 3.7V Li-Ion Battery
• 3rd Antenna: **IPEX to SMA-F pigtail
  
  Shop

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PRE-SOLDERED: "The Blue ESP"
This is an ESP32 with RF-module breakouts (nRF24/CC1101 etc.) for experimenting.
Remember: It is not intended for illegal use, neither for my project!

Required:

• nRF24L01+PA+LNA (2x)
  Why do you need to get the nRF24's? -> the pinout can be used to connect either nRF24 or CC1101 modules for further experiments with an ESP32 chip. Shop

Full DIY assembling video tutorial

Full DIY assembling video tutorial (if the TikTok is not available for you)

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Demonstration

Demonstration (if the TikTok is not available for you)

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Flashing process

Flashing process (if the TikTok is not available for you)

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• Bluetooth = 79CH
  Frequency Range: 2.402 GHz to 2.480 GHz
  Channel Width: 1 MHz

• BLE = 40CH
  Frequency Range: 2.400 GHz to 2.4835 GHz
  Channel Width: 2 MHz

• WiFi = 14CH
  Frequency Range: 2.400 GHz to 2.4835 GHz
  Channel Width: Typically 20 MHz, but can be 22 MHz or 40 MHz in some cases

• RC drones, etc. = 1-125CH
  Frequency Range: 2.400 GHz to 2.525 GHz
  Channel Width: 1 MHz

To disrupt various channels on the 2.4GHz band, do the following to enable your ESP32-BlueJammer:

• Every mode starts right away after powering on the device! There is no additional button to start the attack!
• It simply jams right away once powered!

• use the "Boot" button on the ESP32 to switch between the channel modes on the Combo-Firmware!
• the OLED will display your current operation channel
• the status LED lets you know about the current state you're in:
  1 blink = BT
  2 blinks = BLE
  3 blinks = WiFi
  4 blinks = RC
• the serial output of your ESP32-BlueJammer will output the following lines when switching mode:
  State 1: Bluetooth
  State 2: Bluetooth Low Energy
  State 3: WiFi
  State 4: RC

• the firmware you choose indicates the operation channel by its name, this means:

Bluetooth_80_CH - jams classic Bluetooth
Frequency Range: 2.402 GHz to 2.480 GHz

BluetoothLowEnergy_40_CH - jams Bluetooth Low Energy
Frequency Range: 2.400 GHz to 2.4835 GHz

Bluetooth-BluetoothLowEnergy_40-80_CH - jams classic Bluetooth & Bluetooth Low Energy
Frequency Range: 2.402 GHz to 2.480 GHz & 2.400 GHz to 2.4835 GHz

Bluetooth-WiFi_14-80_CH - jams classic Bluetooth & WiFi
Frequency Range: 2.402 GHz to 2.480 GHz & 2.400 GHz to 2.4835 GHz

WiFi_14_CH - jams WiFi
Frequency Range: 2.400 GHz to 2.4835 GHz

2.4GHzRemoteControl(Drones etc.)_1-125_CH - jams RC (Drones etc.)
Frequency Range: 2.400 GHz to 2.525 GHz

(Aliexpress affiliate links to support me-linked to the item names)

• ESP32 Dev Module (Recommended: ESP32-32U CP2102, any ESP32 should work as long as it has the needed pins)
• nRF24L01+PA+LNA (2x)
• 10-100uF Capacitor (2x) (any voltage above 5V)
• Prototype PCB (at least 7x9 cm, but you will need to cut it down to fit the 3D-printed case, which fits a size of 7x5,5cm!)

• 0.96" OLED Display I2C
• 3rd Antenna: IPEX to SMA-F pigtail
• Status LED: 3mm LED
• 4.7k Ohm Resistor

• 3.7V Li-Ion Battery
• JST PH 2.0 Connector
• TP4056 Charging Module (Micro-USB/Type-C)
• Mini Slide Switch

• M3x16 Screws (2x)
• M3 Nuts (2x)
  Get this M3 kit instead:
• M3 screws&nuts kit

A frequently asked question is whether the antennas are needed and what the third antenna is for, here is the answer: Yes, you need at least both antennas for the nRF24's! Why? To have it working on a decent range! The average range with standard known chinese 2.4GHz antennas is about 20-30meters. Upgrading those antennas will help a lot with getting more range!

2 antennas are for the HSPI and VSPI nRF24 modules!

The 3rd antenna is plugged to the ESP32 chip itself, whether via IPEX or soldered onto its own antenna, if your ESP32 does not provide any option to add that one, it obviously won't be possible! What is the 3rd antenna used for? The third antenna connected to the ESP32 chip itself helps with reliable long-range interference. It ensures a better intermediate signal and stability when jamming! (The third antenna is your own decision and therefore optional!)

I've created a webflasher to make it super easy for you to flash your ESP32 chip with the ESP32-BlueJammer firmware of your choice!

• Visit ESP32-BlueJammerFlasher
• First, choose the firmware type, "Generic" or "0.96" OLED"
• choose the firmware you want to flash
• Connect your ESP32 via a data USB cable
• Flash the firmware of your choice :D

The BlueFlasher.exe lets you flash any available firmware with no more than 3 clicks! It is always the latest up-to-date firmware!

• Download the BlueFlasher.exe
• run the application (Image)
• simply choose the COM port of your ESP32 (Image)
• hold the "Boot" button on your ESP32 from now on
• choose the firmware you want to flash
• release the "Boot" button on your ESP32
• wait for the firmware to be flashed (check console) :D

BlueFlasherDemo.mp4

Developed by 9dl

• Download the .bin files available on this repository
• Use any flasher of your choice
• Flash it :D

If your ESP32 is not showing up in the device list or won't get recognized you will need to have THESE DRIVERS INSTALLED which can be found on my Discord server too!

Here are both pinouts for HSPI and VSPI. You need both nRF24L01 modules connected in order to achieve full capability of the device.
nRF24L01+ pinout

1st nRF24L01 module Pin	HSPI Pin (ESP32)	10uf capacitor
VCC	3.3V	(+) capacitor
GND	GND	(-) capacitor
CE	GPIO 16
CSN	GPIO 15
SCK	GPIO 14
MOSI	GPIO 13
MISO	GPIO 12
IRQ

2nd nRF24L01 module Pin	VSPI Pin (ESP32)	10uf capacitor
VCC	3.3V	(+) capacitor
GND	GND	(-) capacitor
CE	GPIO 22
CSN	GPIO 21
SCK	GPIO 18
MOSI	GPIO 23
MISO	GPIO 19
IRQ

ESP32	4.7k Ohm Resistor	3mm Status LED (blue)
GND		(-) LED
	Resistor	(+) LED
GPIO27	Resistor

0.96" OLED Display I2C	ESP32
GND	GND
VCC	3.3V
SCL	GPIO 5
SDA	GPIO 4

3.7V Li-Ion battery	JST-PH2 connector	TP4056 Charging Module	Mini Slide Switch	ESP32
(+) Battery	(+) JST-PH2	Bat +
(-) Battery	(-) JST-PH2	Bat -
		OUT +	Switch in
		OUT -		GND
			Switch out	3V3

• Is my ESP32-BlueJammer really working?
  Yes! My ESP32 BlueJammer is fully functional, and no one pauses the sound in the demo video. Many people have built their own ESP32-BlueJammer and confirmed that it works! Join my Discord and see for yourself! ;D

• Why my ESP32-BlueJammer code is NOT open source
  There are several "BLE Jammers" available on GitHub, but they all have limitations in frequency range, channel coverage, and effective distance (around 5 meters). Therefore I decided to develop and code my own firmware for the ESP32-BlueJammer, aiming for superior performance.

  Despite some claims that I might have copied someone else's work, it's important to clarify that extracting source code from a compiled file (.hex, .bin, etc.) is practically impossible. If I had used someone else's work, I wouldn't have been able to create custom console banners, develop multiple firmware versions, or build a web flasher. My code is entirely written from scratch. There is nothing taken from other available codes, sources, codebases or resources as a foundation, if any even exist. My code remains closed source for now, to protect the significant effort and innovation I've invested in this project.

  This isn't my last project. I'm looking forward to implementing the ESP32-BlueJammer in further ongoing projects, so for now, I'd like the code to remain closed source. Maybe someday I'll make it open source!
  -no one knows. ;D

• Here are three snippets of my source code for you to compare with other available sources. This way, you can see that it was written from scratch:

You can join my Discord server here!

Here you can visit my Portfolio, you'll find everything that you're looking for here!