General Help

HC-06 Bluetooth Module General Help

Andrew Stuntz
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Ask any questions related to getting your HC-06 Bluetooth Module up and running here.

Bennett
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Your product image and description say that this is at 3.3V device, but the Fritzing diagram shows no logic level shifting. Is that built into the board? If not, do you carry any suitable logic level shifters?

Bennett
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Seriously, I'd like to know. My product has arrived and I'd hate to destroy it.

In reply to Andrew Stuntz
RickyTerzis
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Hi...i am a new user here. My problem is i cant conect the bluetooth in labview to controller the program and i dont know how i conect the bluetooth can you help me ? How i can controller my arduino with bluetooth?

Alfred Corkins JR
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When I look at the one I have, I can see a 3.3VDC regulator on the carrier board (the board the bluetooth device is placed on). And it also looks like there are some level shifting resistors on board. At any rate it works OK with 5VDC in my setup.

Also in Chapter 5 of the documentation, it shows the regulator in the schematic.

In reply to Bennett
Alfred Corkins JR
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One thing I did discover - I can connect to the H6 with my iMac, but not an iPhone. According to the Arduino forum on the H6, it is not compatible with an iPhone (but it is with Android). A slightly different bluetooth version "HM-10" supposedly is compatible with the iPhone. Perhaps Tayda could stock those at some point?

Richard
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For those who come along following the date of this post. From my research, into the line levels of this module, it appears the correct information would be "+5V" pin is 5 volt tolerant, due to a 3.3V onboard regulator. This regulator does not effect the "3.3V" requirement for the "RX" pin, for safe operation. You will get away with 5 volts, for a while, but this will eventually burn out the pin/port. Use a voltage divider on the "RX" pin if your input level to the "RX" pin is more than the "3.3V" required for the chip-set. Which IS the case with the diagram presented by Tayda in the description of this device. They are feeding 5 volts directly to the RX pin. BAD BAD BAD!!!