Chayan Mistry chayanforyou

🧠 PID Controller কী?

PID মানে:

P = Proportional
I = Integral
D = Derivative

PID Controller এমন একটা অ্যালগরিদম যেটা কোনও সিস্টেমকে (যেমন গাড়ি, ফ্যান, তাপমাত্রা কন্ট্রোল, ইত্যাদি) ঠিক মত নিয়ন্ত্রণ করতে সাহায্য করে।

🫧 Bubble Solution

🧴 Ingredients:

8 cups of warm water
1 cup of dish soap (e.g., Vim or Trix)
4 tablespoons of glycerin (or corn syrup/sugar as an alternative)
2 teaspoons of baking powder (optional, for stronger bubbles)

🧪 Instructions:

Pour 8 cups of warm water into a large container.

1. Boot into the macOS installer

Plug in your Hackintosh USB installer.
At the OpenCore/Clover boot picker, choose “Install macOS …” (the installer).
Wait until you reach the macOS Utilities screen.

2. Open Terminal

In the top menu bar, click Utilities → Terminal.
(This gives you a terminal even if your system disk can’t boot.)

DS18B20 Proteus Simulation Fix

Overview

This project provides a solution to fix the DS18B20 temperature sensor simulation issue in Proteus, where incorrect readings (e.g., -127.00°C) were observed despite the code and circuit working on real hardware.

Problem

The DS18B20 sensor in Proteus simulation returned alternating readings of -127.00°C (indicating a communication failure) and 27.00°C (likely the default simulated temperature). This issue is simulation-specific and does not occur on real hardware due to timing mismatches in the OneWire protocol.

Solution

The fix involves adjusting the DS18B20 component properties in Proteus to align with the OneWire timing requirements. Follow these steps:

	#!/bin/bash

	###################################################################
	#Description : Script for install tools for android reversing
	# Testing in Ubuntu 20.04
	# Run as root
	# Tools:
	# - APKtool
	# - Jadx
	# - adb

	#!/bin/bash

	# Debug
	set -o xtrace

	GUEST_IP=192.168.122.221
	HOST_IP=192.168.122.1

	# Wipe the current usbfluxd, usbmuxd, and socat:
	sudo killall usbfluxd

	def nec_generate(command_hex: str):
	HEADER = ["0158", "00B0"] # 9ms + 4.5ms
	BIT_0 = ["0017", "0017"]
	BIT_1 = ["0017", "0041"]
	STOP = ["0017"]
	TAIL = ["05A5", "0158", "0056", "0017", "0E5B"]

	# Pronto preamble
	pronto = ["0000", "006C", "0022", "0002"]
	pronto.extend(HEADER)

	#!/bin/bash
	progname="${0##*/}"
	progname="${progname%.sh}"

	# usage: check_elf_alignment.sh [path to .so files\|path to .apk]

	cleanup_trap() {
	if [ -n "${tmp}" -a -d "${tmp}" ]; then
	rm -rf ${tmp}
	fi

	OPENCV_SRC=$PWD/opencv
	OPENCV_CONTRIB=$PWD/opencv_contrib
	OPENCV_BUILD=$PWD/opencv-android-build # output folder
	ANDROID_SDK=$HOME/Library/Android/sdk
	ANDROID_NDK=$ANDROID_SDK/ndk/27.2.12479018 # change to your ndk folder
	CONFIG_FILE=$PWD/ndk-27.config.py # adjust to match your NDK version

	mkdir -p $OPENCV_BUILD
	cd $OPENCV_BUILD

	# Docs: https://developer.android.com/ndk/guides/cmake#android_native_api_level
	ANDROID_NATIVE_API_LEVEL = int(os.environ.get('ANDROID_NATIVE_API_LEVEL', 21))
	cmake_common_vars = {
	# Docs: https://source.android.com/docs/setup/about/build-numbers
	# Docs: https://developer.android.com/studio/publish/versioning
	'ANDROID_COMPILE_SDK_VERSION': os.environ.get('ANDROID_COMPILE_SDK_VERSION', 36),
	'ANDROID_TARGET_SDK_VERSION': os.environ.get('ANDROID_TARGET_SDK_VERSION', 36),
	'ANDROID_MIN_SDK_VERSION': os.environ.get('ANDROID_MIN_SDK_VERSION', ANDROID_NATIVE_API_LEVEL),
	# Docs: https://developer.android.com/studio/releases/gradle-plugin
	'ANDROID_GRADLE_PLUGIN_VERSION': '8.9.3', # AGP version 8.5.1 or higher