I can get it to connect with my phone and send messages from the arduino to the bluetooth terminal app on my phone, but I cannot send messages from my phone to the module.
I then connected it to an oscilloscope to check what is being sent from the module. There is a signal being sent on the TX but it is only 1.5V and not enough to register on the arduino. Is this because it is a faulty component, or is there a setting I should change?
Yes, I double checked and there is 5V at the VCC pin. It works when sending from the serial monitor to my phone but nothing is coming off the TX pin. Even if it is in AT mode (2 second flash) I cannot get an OK for an AT command.