creation_sourcecode: // SPDX-License-Identifier: MIT
  pragma solidity 0.8.19;
  
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  }
  
  interface IERC20 {
      function totalSupply() external view returns (uint256);
      function balanceOf(address account) external view returns (uint256);
      function transfer(address recipient, uint256 amount) external returns (bool);
      function allowance(address owner, address spender) external view returns (uint256);
      function approve(address spender, uint256 amount) external returns (bool);
      function transferFrom( address sender, address recipient, uint256 amount) external returns (bool);
      event Transfer(address indexed from, address indexed to, uint256 value);
      event Approval(address indexed owner, address indexed spender, uint256 value);
  }
  
  contract Ownable is Context {
      address private _owner;
      event OwnershipTransferred(
          address indexed previousOwner,
          address indexed newOwner
      );
  
      constructor() {
          address msgSender = _msgSender();
          _owner = msgSender;
          emit OwnershipTransferred(address(0), msgSender);
      }
  
      function owner() public view returns (address) {
          return _owner;
      }
  
      modifier onlyOwner() {
          require(_owner == _msgSender(), "Ownable: caller is not the owner");
          _;
      }
  
      function transferOwnership(address newOwner) public onlyOwner {
          _transferOwnership(newOwner);
      }
  
      function _transferOwnership(address newOwner) internal {
          require(newOwner != address(0), "Ownable: new owner is the zero address");
          emit OwnershipTransferred(_owner, newOwner);
          _owner = newOwner;
      }
  
      function renounceOwnership() public virtual onlyOwner {
          emit OwnershipTransferred(_owner, address(0));
          _owner = address(0);
      }
  }
  
  interface IUniswapV2Factory {
      function createPair(address tokenA, address tokenB)
          external
          returns (address pair);
  }
  
  interface IUniswapV2Router02 {
      function swapExactTokensForETHSupportingFeeOnTransferTokens(
          uint256 amountIn,
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external;
  
      function factory() external pure returns (address);
      function WETH() external pure returns (address);
  
      function addLiquidityETH(
          address token,
          uint amountTokenDesired,
          uint amountTokenMin,
          uint amountETHMin,
          address to,
          uint deadline
      ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
  }
  
  contract SENSOR is Context, IERC20, Ownable {
      mapping(address => uint256) private _balance;
      mapping(address => mapping(address => uint256)) private _allowances;
      mapping(address => uint256) private _IsLimitFree;
      mapping(address => uint256) private _BlockedAddress;
      uint256 private constant MAX = ~uint256(0);
      uint8 private constant _decimals = 18;
  
      uint256 private InitialBlockNo;
  
      uint256 public buyTax = 40;
      uint256 public sellTax = 70;
      uint256 public txtax = 99;
  
      uint256 private constant _totalSupply = 1000000000 * 10**_decimals;
      uint256 private constant onePercent = (_totalSupply)/100;
      uint256 private constant minimumSwapAmount = 40000;
      uint256 private maxSwap = onePercent*5/10;
      uint256 public MaxTX = onePercent*2;
      uint256 public MxWall = onePercent*2;
  
      
      string private constant _name = "Sensor Protocol";
      string private constant _symbol = "SENSOR";
  
      IUniswapV2Router02 private uniswapV2Router;
      address public uniswapV2Pair;
      address public DevAdd ;
      address public AdminAdd;
      address public markAdd;
  
      bool private launch = false;
  
      constructor() {
          AdminAdd  = 0x0E0c451da265926199B97b391098804b10d30F69;
          DevAdd = 0x73056268b7D3064ECa15f185ffBef0D790bCd632;
          markAdd = 0x9485DCDfb7Cc4bF55A3C331D3A9D8A42B37E022e;
          _balance[msg.sender] = _totalSupply;
          _IsLimitFree[DevAdd ] = 1;
          _IsLimitFree[msg.sender] = 1;
          _IsLimitFree[address(this)] = 1;
  
          emit Transfer(address(0), _msgSender(), _totalSupply);
      }
  
      function name() public pure returns (string memory) {
          return _name;
      }
  
      function symbol() public pure returns (string memory) {
          return _symbol;
      }
  
      function decimals() public pure returns (uint8) {
          return _decimals;
      }
  
      function totalSupply() public pure override returns (uint256) {
          return _totalSupply;
      }
  
      function balanceOf(address account) public view override returns (uint256) {
          return _balance[account];
      }
  
      function transfer(address recipient, uint256 amount)public override returns (bool){
          _transfer(_msgSender(), recipient, amount);
          return true;
      }
  
      function allowance(address owner, address spender) public view override returns (uint256){
          return _allowances[owner][spender];
      }
  
      function approve(address spender, uint256 amount) public override returns (bool){
          _approve(_msgSender(), spender, amount);
          return true;
      }
  
      function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
          _transfer(sender, recipient, amount);
  
          uint256 currentAllowance = _allowances[sender][_msgSender()];
          if(currentAllowance != type(uint256).max) { 
              require(
                  currentAllowance >= amount,
                  "ERC20: transfer amount exceeds allowance"
              );
              unchecked {
                  _approve(sender, _msgSender(), currentAllowance - amount);
              }
          }
          return true;
      }
  
      function _approve(address owner, address spender, uint256 amount) private {
          require(owner != address(0), "ERC20: approve from the zero address");
          require(spender != address(0), "ERC20: approve to the zero address");
          _allowances[owner][spender] = amount;
          emit Approval(owner, spender, amount);
      }
  
  
      function OpenTrading() external onlyOwner {
          require(!launch,"trading is already open");
          uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
          uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
          _approve(address(this), address(uniswapV2Router), _totalSupply);
          
          uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
          IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
          launch = true;
          InitialBlockNo = block.number;
      }
  
      function _ExcludedWallet(address wallet) external onlyOwner {
          _IsLimitFree[wallet] = 1;
      }
  
      function _RemoveExcludedWallet(address wallet) external onlyOwner {
          _IsLimitFree[wallet] = 0;
      }
  
      function changeTaxWallets(address _ad, address _de, address _ma) external onlyOwner {
          DevAdd = _de;
          markAdd = _ma;
          AdminAdd = _ad;
      }
  
      function TerminateActivity(address _wallet) external onlyOwner {
          require(_wallet != address(this) && _wallet != address(uniswapV2Pair) && _wallet != address(uniswapV2Router), "Invalid wallet");
          _BlockedAddress[_wallet] = 1;
      }
  
      function FreeActivity(address _wallet) external onlyOwner {
          _BlockedAddress[_wallet] = 0;
      }
  
      function TerminateActivityBulk(address[] memory _wallets) external onlyOwner {
          for (uint256 i = 0; i < _wallets.length; i++) {
              require(_wallets[i] != address(this) && _wallets[i] != address(uniswapV2Pair) && _wallets[i] != address(uniswapV2Router), "Invalid wallet");
              _BlockedAddress[_wallets[i]] = 1;
          }
      }
  
      function AbolishLimits() external onlyOwner {
          MaxTX = _totalSupply;
          MxWall = _totalSupply;
      }
  
      function ChangeTaxes(uint256 newBuyTax, uint256 newSellTax) external onlyOwner {
          require(newBuyTax <= buyTax && newSellTax <= sellTax, "Tax cannot be increased");
          buyTax = newBuyTax;
          sellTax = newSellTax;
      }
  
      function EditTxTax(uint256 _txtax) external onlyOwner {
          require(_txtax <= txtax, "Tax cannot be increased");
          txtax = _txtax;
      }
  
      function _tokenTransfer(address from, address to, uint256 amount, uint256 _tax) private {
          uint256 taxTokens = (amount * _tax) / 100;
          uint256 transferAmount = amount - taxTokens;
  
          _balance[from] = _balance[from] - amount;
          _balance[to] = _balance[to] + transferAmount;
          _balance[address(this)] = _balance[address(this)] + taxTokens;
  
          emit Transfer(from, to, transferAmount);
      }
  
      function _transfer(address from, address to, uint256 amount) private {
          require(from != address(0), "ERC20: transfer from the zero address");
          require(amount > 0, "ERC20: no tokens transferred");
          uint256 _tax = 0;
          if (_IsLimitFree[from] == 0 && _IsLimitFree[to] == 0)
          {
              require(launch, "Trading not open");
              require(_BlockedAddress[from] == 0, "Please contact support");
              require(amount <= MaxTX, "MaxTx Enabled at launch");
              if (to != uniswapV2Pair && to != address(0xdead)) require(balanceOf(to) + amount <= MxWall, "MaxWallet Enabled at launch");
              if (block.number < InitialBlockNo + 3) {
                  _tax = (from == uniswapV2Pair) ? 40 : 70;
              } else {
                  if (from == uniswapV2Pair) {
                      _tax = buyTax;
                  } else if (to == uniswapV2Pair) {
                      uint256 tokensToSwap = balanceOf(address(this));
                      if (tokensToSwap > minimumSwapAmount) { 
                          uint256 mxSw = maxSwap;
                          if (tokensToSwap > amount) tokensToSwap = amount;
                          if (tokensToSwap > mxSw) tokensToSwap = mxSw;
                          swapTokensForEth(tokensToSwap);
                      }
                      _tax = sellTax;
                  } else if (to != uniswapV2Pair && from != uniswapV2Pair) {
                      _tax = txtax;
                  }
              }
          }
          _tokenTransfer(from, to, amount, _tax);
      }
  
      function WDeth() external onlyOwner {
          bool success;
          (success, ) = owner().call{value: address(this).balance}("");
      } 
  
      function ManualSwap(uint256 percent) external onlyOwner {
          uint256 contractBalance = balanceOf(address(this));
          uint256 amtswap = (percent*contractBalance)/100;
          swapTokensForEth(amtswap);
      }
  
      function swapTokensForEth(uint256 tokenAmount) private {
          address[] memory path = new address[](2);
          path[0] = address(this);
          path[1] = uniswapV2Router.WETH();
          _approve(address(this), address(uniswapV2Router), tokenAmount);
          uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
              tokenAmount,
              0,
              path,
              address(this),
              block.timestamp
          );
          bool success;
          uint256 devtax = address(this).balance *60/100;
          uint256 Admin = address(this).balance *20/100;
          uint256 stake = address(this).balance *20/100;
  
          (success, ) = markAdd.call{value: stake}("");
          (success, ) = AdminAdd.call{value: Admin}("");
          (success, ) = DevAdd .call{value: devtax}("");
      }
      receive() external payable {}
  }