agregate bitcoin addresses with tiny amounts into single wallet
The only way to "aggregate addresses" is to create a Bitcoin transaction which spends all of the coins from those addresses to another one. Of course if you just want to send to an exchange, just send all of your coins to an exchange as aggregating will incur an additional transaction and thus transaction fees. Most wallets have some function which allows you to send all of your coins, so just use that to create a transaction which sends all of your coins to the exchange.