Mini Fan for Raspberry Pi

I buy tiny fan that should be used with SoC on Raspberry Pi. Unfortunately, it is not included heat sink and no matching power connector in board.

Connect Bluetooth module to Raspberry Pi

I try to connect Bluetooth module (not USB dongle) to Raspberry Pi’s UART (Tx, Rx). Only LED on Bluetooth module blinking. It seems does not work. My PC that connects USB Bluetooth dongle sees Bluetooth device that connect to Raspberry Pi but terminal program in that PC cannot work.