Firiodr HC-06 Wireless Serial 4 Pin Bluetooth Transeiver RF Master Module Replacement for Arduino

in this video I'm going to show you how to use this Etsy 0-6 Bluetooth module which is a cheap little device which you can buy online by using arduino you can control additives using your smartphone or user relay module to control high power stuff like a fan or you can even receive data for example temperature by using DSA it can be 20 ok let's see how we can help this thing up the first pin from the right is VCC which goes to 5 all of the Adreno second pin is the ground pin which goes to ground I guess third pin is the transmit pin which connects to receive pin of the Arduino and the last pin is received which we cannot connect directly to adrenals TX pin because the bluetooth module is 3.3 volt compatible which means anything more than 3.3 volt will kill the board so we need a voltage divider which converts our 5 volt signal into 3.3 volt I'm using 4.7 K and in a 2.2 K connected in se