Need help with Arduino UNO R3 + HC-06 Bluetooth

Hello all! After I posted my Atom tanky robot that I was working on, I am now trying to connect it with bluetooth. I also bought some Ultrasonic sensors (HC-SR04). 

The bluetooth I use is: HC-06 Bluetooth V2.0 RF Wireless Transceiver Module Interface RS232 TTL

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[original story: Let's Make Robots]