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You are here: Home / Replies / Your BT module works on 3.3V

Your BT module works on 3.3V

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Microcontroller › AVR › Problems with RS-232 Interfacing › Your BT module works on 3.3V

April 18, 2012 at 1:18 pm #7480
AJISH ALFRED
Participant

Your BT module works on 3.3V and it gives 0  for low bit and 3.3V for high bit. It will cause issues while connecting with 5V ttl logic. Use a 3.3V to 5V level shifter before connecting it with the controller

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