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"Kernel Panic” error After upgrading Parrot OS

This guide will walk you through the steps of resolving the kernel panic error that you may encounter after upgrading your Parrot OS kernel to version 5.6.0. Step 1: Enter Recovery Mode Restart your computer and enter the GRUB menu by pressing the appropriate key during the boot process. The specific key may vary depending on your computer's manufacturer and BIOS settings. Common keys include F2, F10, Delete, or Esc. Once in the GRUB menu, select "Advanced Mode" using the arrow keys and press Enter. In the Advanced Mode menu, locate the entry for Parrot OS 6.1 and select "Recovery Mode" using the arrow keys. Press Enter to boot into Recovery Mode. Step 2: Purge Problematic Packages Once in Recovery Mode, log in as root using the default credentials. Open a terminal window by selecting "Drop to root shell prompt" from the Recovery Mode menu. ...

1 Best way to add members to Telegram group(2021 using python)

This post for those who want to add members to thier telegram group, which could take forever if we do manually, hence we can automate this take. I 'm using python for this automation. Using the python script called telethon we can add members to the group. T he daliy limit is 200 members. The script adds members with 60-180 sec intervals to avoid bans. you need the following installed in your computer : 1.python 3 (recent one would be better) 2.pip install of python installed(we can enable this option while install python choosing custom install) 3.telethon package installed using pip installer. 4.telegram group api registered in the telegram website. 5.good internet(mandatory) 1.Install python 3 CODE : visit python.org for downloading and installing the windows pacakge. Note: 1.choose the custom installing to enable necessary installers in windows. 2.if you are on the linux or mac python is defaultly ins...

HACK AND CLONE CAR KEY FOB, MY EPIC FAILURE...!!

In this blog post i'm sharing my experience on cloning the my car key fob signal and how to do it properly. first things frist the cars now a days comes with a wireless remote key where u get atleast 2 or 3 options like lock,unlocking ,trunk(we call it as dickey!!!).....these options let your car access wirelessly and some cars are completly keyless for even driving. the keys of the cars are actually communicating with certain frequency like 433.xxxMHz or some countries uses 315.xxxMHz...the car companies uses an algorithm called " ROLLING CODES "...these are not that esay to crack cause they change every time u press key and once the key transmitted it cannot be used again... but a hacker named "samy kamakar" demonstrated an attack called REPLAY ATTACK where u simply transmitt the signal by recording the key fob away from car or blocking the signal and then recording. so this is how i've tried it..frist i needed to listen to the signals as possible in 10KHz...

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Labels

ARDUINO
bash
computer-vision
digital logic 101
electronics basics
linux
machine learning
math
others
python

RASPBERRYPI
rf
tech

Show more Show less

"Kernel Panic” error After upgrading Parrot OS

This guide will walk you through the steps of resolving the kernel panic error that you may encounter after upgrading your Parrot OS kernel to version 5.6.0. Step 1: Enter Recovery Mode Restart your computer and enter the GRUB menu by pressing the appropriate key during the boot process. The specific key may vary depending on your computer's manufacturer and BIOS settings. Common keys include F2, F10, Delete, or Esc. Once in the GRUB menu, select "Advanced Mode" using the arrow keys and press Enter. In the Advanced Mode menu, locate the entry for Parrot OS 6.1 and select "Recovery Mode" using the arrow keys. Press Enter to boot into Recovery Mode. Step 2: Purge Problematic Packages Once in Recovery Mode, log in as root using the default credentials. Open a terminal window by selecting "Drop to root shell prompt" from the Recovery Mode menu. ...

1 Best way to add members to Telegram group(2021 using python)

This post for those who want to add members to thier telegram group, which could take forever if we do manually, hence we can automate this take. I 'm using python for this automation. Using the python script called telethon we can add members to the group. T he daliy limit is 200 members. The script adds members with 60-180 sec intervals to avoid bans. you need the following installed in your computer : 1.python 3 (recent one would be better) 2.pip install of python installed(we can enable this option while install python choosing custom install) 3.telethon package installed using pip installer. 4.telegram group api registered in the telegram website. 5.good internet(mandatory) 1.Install python 3 CODE : visit python.org for downloading and installing the windows pacakge. Note: 1.choose the custom installing to enable necessary installers in windows. 2.if you are on the linux or mac python is defaultly ins...

secrets of arduino atmega328p adc

In this tutorials i'm gonna tell you all about the adc present in arduino famous boards like UNO,NANO,MINI....the atmega328p chips consist of the " 10-bit resolution adc " inside the uC. The type of adc is used in is Successive approximation ADC . these are kind are slow but gives good resolution though. let's dig in registers of adc in atmega328p. To read analog input we need The reg " ADMUX ". T he adc reg have a Pin called AREF (adc reference voltage). The gives 10-bit number i.e 0-1023, 0-0V & 1023-5V. it measures using this formula Vin = (Analog Ref * analogRead() ) / 1024 we need stable AREF voltage we can use internal 1.1V reference or we need to provide a stable voltage anywhere between 0.3V-5V externally. [NOTE: if ur are planning to provide external voltage to aref pin present on arduino uno,nano,mini, the recommended value is less than 5v to be safe on safe side cause the voltage of external 5v source may not be 5v exactly so if it i...

HACK AND CLONE CAR KEY FOB, MY EPIC FAILURE...!!

In this blog post i'm sharing my experience on cloning the my car key fob signal and how to do it properly. first things frist the cars now a days comes with a wireless remote key where u get atleast 2 or 3 options like lock,unlocking ,trunk(we call it as dickey!!!).....these options let your car access wirelessly and some cars are completly keyless for even driving. the keys of the cars are actually communicating with certain frequency like 433.xxxMHz or some countries uses 315.xxxMHz...the car companies uses an algorithm called " ROLLING CODES "...these are not that esay to crack cause they change every time u press key and once the key transmitted it cannot be used again... but a hacker named "samy kamakar" demonstrated an attack called REPLAY ATTACK where u simply transmitt the signal by recording the key fob away from car or blocking the signal and then recording. so this is how i've tried it..frist i needed to listen to the signals as possible in 10KHz...

HACK HC-05(BLUETOOTH MODULE) FRIMWARE INTO HID FRIMWARE

This post helps you to change the firmware of the hc05 Bluetooth chip into hid enabled Bluetooth chip. The HID stands for “HUMAN INTERFACE DEVICES” means things like your keyboard, mouse, printer, joysticks, etc.. Drivers get automatically installed in your computer without any external drivers needed. The hc05 default don’t have hid capability but, the chip hc05 uses is same clone of chip RN-42 uses (BC417) , the RN-42 is an HID enabled chip. We gonna swap the firmware’s of rn42 into hc05. [NOTE: this particular hc05 chip comes with serial interface in it if you perform this swap it no longer work as serial Bluetooth chip. If you want you can save the firmware of hc05 and re-swap again to work normal]. That being said what are the things we need to perform this task are: 1. HC05 module for sure (duh!) 2. RN-42 chip {Wait if you are performing this task you must be very enthusiastic in electronics or extremely poor then why the hell you gonna buy an r...

The Loss function/Cost Function

In this post we are gonna learn about the loss function in machine learning..The loss functions are essential in machine learning cause they are one who tells the algorithm if it makes mistake in prediction as wrong. so The Loss function/Cost Function are integral part of gradient descent and entropy calculations. Here we are gonna learn a bit about the different cost functions for different types of problems in machine learning. Mathematical Formula for Entropy : Consider a data set having a total number of N classes, then the entropy (E) can be determined with the formula below: Where: P i = Probability of randomly selecting an example in class I; Entropy always lies between 0 and 1, however depending on the number of classes in the dataset, it can be greater than 1. But the high value of Let's understand it with an example where we have a dataset having three colors of fruits as red, green, and yellow. Suppose we have 2 red, 2 green, and 4 yellow observations throughout the dat...

video face detection using HAAR'S CASCADE with python

face detection using HAAR'S CASCADE with python In this tutorial we're gonna look into a face detection using "HAAR's CASCADE" algorithm in open cv. haar's cascade a is face detection classifier built-in opencv for face and many more detection. Haar's cascade is originally developed from viola-jones algorithm . but it's not perfect it is prone to noise often, and this algorithm is best suited for frontal face detection, but for just simplicity we use it today. Let's be clear about 2 things they are face Recognization and face detection. They both are 2 separate things. This haars cascade focus and used for face detection means in picture or a video it can detect the faces. Where face recognization is detecting a particular face of person. The problem in computer vision has been bothered so long untill Development began on similar systems in the 1960s, here is wiki page on history of face detection . The viola jones algorithm achived the face ...

ARDUINO CODE FOR PIR SENSOR

int val=0; #define led 13 void setup() { Serial.begin(9600); pinMode(led,OUTPUT); } void loop() { val=digitalRead(3); if (val==HIGH){ digitalWrite(led,HIGH); Serial.println("motion is detected"); } if(val==LOW){ digitalWrite(led,LOW); delay(50); Serial.println("nothing is detected"); } }

DIY VOLTMETER USING ARDUINO ADC

This post helps to DIY yourself a high precision multimeter using Arduino. The UNO already comes with an excellent 10-bit ADC which is enough, but I recommend using an external ADC of 16-bit if you want to take it to serious measurement. But you don’t want you use it as replacement for a multimeter, buy a good multimeter instead of it. This Arduino based one is helpful for projects and static voltages that doesn’t change over the time. We can create a voltage divider hence We can measure voltage drop between the divider and hence multiply with resistance to get the VIN. Here I’m using a 1Kohm and 2.2KOHM resistance to measure max voltage of 5V. If want to measure the higher voltage use the following formula to adjust the resistors. Vout = VIN * (R1R2/R1+R2) [NOTE: This voltage “VOUT” should not have to be more than 5v, I recommend VOUT<less than 5V is safe to use]. Sounds easy because it is, but V_IN cannot be measure hence we need ADC to do trick, the...

DISCRETE FOURIER TRANSFORMATION(DFT)

In this post we are gonna learn about fourier transformation and implementation of Discrete fourier transformation in python. Why we need to use fourier transformation anyway...a normal periodic wave like sine wave has 3 characterstics like Phase,amplitude,frequency that tell us about the wave..it's easy and understandable but what if a wave is unperiodic like this ex. in this example it is not a periodic sinewave..so but an multiple frequencies of waves added together. Hence to analyse these kind of waves we need fourier transformation in signal processing. The fourier transforamation is applied in both Continous and Discrete waves . .In this we are gonna concentrate in DFT(Discrete fourier transformation)..and to visulalize the wave we are gonna use python(cause it's easy to use). we need the following python library to do this : 1.numpy 2.seaborn 3.mathplotlib DFT(DISCRETE FOURIER TRANSFORMATION) It is applied to specifically discete signa...

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"Kernel Panic” error After upgrading Parrot OS

1 Best way to add members to Telegram group(2021 using python)

HACK AND CLONE CAR KEY FOB, MY EPIC FAILURE...!!