Well yes i do know that the BBB is a 3.3v with a 4-6 mA output. Therefore I
have used the following configuration:

* TRIGGER       P8_12 gpio1[12] GPIO44  out pulldown        Mode: 7
* ECHO          P8_11 gpio1[13] GPIO45  in  pulldown        Mode: 7
*** with R 1KOhm
* GND           P9_1 or P9_2    GND
* VCC           P9_5 or P9_6    VDD_5V(from BBB)

but am I right ?

On 7 May 2015 at 16:23, doog <[email protected]> wrote:

>
> On Thursday, May 7, 2015 at 1:44:57 AM UTC-7, claudiu <clip> wrote:
>>
>> For the sensor's VCC im using the VDD_5V from BBB.
>
>
> and you do know that the BBB is a 3.3v device so level shifting is
> probable?
>
> Doug
>
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