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After wondering/researching about this for days, I finally ask this question: What is the speed (bits per second) of a bluetooth SPP RN-42 device? Is 1 baud = 1 bit (thus 9600 baud = 9600 bits per second) or 1 baud = 1 packet (9600 baud = approx. 9600 * 8 bits = 96000 bits per second)?

The data sheet says: "Sustained SPP data rates: 240 Kbps (Slave mode), 300 Kbps (Master mode)" but do they mean BAUD per second or BIT/BYTE per second?

Any help would be appreciated!

SolarSunrise
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    In general, the lower case b is bits while the upper case B is bytes. So "240 Kbps" is 240,000 **bits** per second. BAUD represents the number of **symbols** per second which depends on how the signal is modulated. However, for a simple serial signal, it generally corresponds directly to bits per second. – DoxyLover Jun 21 '15 at 16:29
  • This may help you: http://electronics.stackexchange.com/questions/56265/difference-between-hz-and-bps/56270#56270 – The Photon Jun 21 '15 at 16:52

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Strictly speaking 1 Baud means one symbol per second. A symbol may represent more than one bit.

Most people however use Baud rate and bits per second (bps) interchangeably.

Kevin White
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  • I was aware that 1 baud represents 1 symbol/sec. However I wasn't sure if the RN42 data sheet meant baud = symbol or just baud = bit. But now I guess they meant bit per second... – SolarSunrise Jun 21 '15 at 20:52