Anyone have any example code using the i2c interface on the pi I can look at? I'm playing around with several of these, and am not getting the results I expect (data getting out, but the hats aren't behaving like they're getting the same bits I think I'm sending). More generally, anyone got any of these hats going? I'm starting off with the Sense Hat, since it exposes everything on it via the i2c.
On Wed, 3/9/16, Anthony Sorace <a@9srv.net> wrote: > Anyone have any example code using the i2c interface on the pi > I can look at? I'm playing around with several of these, and am not > getting the results I expect (data getting out, but the hats aren't behaving > like they're getting the same bits I think I'm sending). > > More generally, anyone got any of these hats going? I'm > starting off with the Sense Hat, since it exposes everything > on it via the i2c. I haven't done anything with the hats, but I do have a few bits of I2C code that go along with the driver modifications I posted a little while back. The first does a little lightshow on a square LED array from Adafruit: http://cs.drexel.edu/~bls96/plan9/lightshow.c The second talks to the MMA8451 3-axis accelerometer: http://cs.drexel.edu/~bls96/plan9/mma8451sa.c This latter one illustrates the subaddressing features. BLS
"Brian L. Stuart" <blstuart@bellsouth.net> writes:
> On Wed, 3/9/16, Anthony Sorace <a@9srv.net> wrote:
>> Anyone have any example code using the i2c interface on the pi
>> I can look at? I'm playing around with several of these, and am not
>> getting the results I expect (data getting out, but the hats aren't behaving
>> like they're getting the same bits I think I'm sending).
>>
>> More generally, anyone got any of these hats going? I'm
>> starting off with the Sense Hat, since it exposes everything
>> on it via the i2c.
>
> I haven't done anything with the hats, but I do have a few bits
> of I2C code that go along with the driver modifications I posted
> a little while back.
>
> The first does a little lightshow on a square LED array from Adafruit:
>
> http://cs.drexel.edu/~bls96/plan9/lightshow.c
>
> The second talks to the MMA8451 3-axis accelerometer:
>
> http://cs.drexel.edu/~bls96/plan9/mma8451sa.c
This link gives Forbidden message (403)
On Wed, 3/9/16, Vasudev Kamath <vasudev@copyninja.info> wrote:
>> The second talks to the MMA8451 3-axis accelerometer:
>>
>> http://cs.drexel.edu/~bls96/plan9/mma8451sa.c
>
> This link gives Forbidden message (403)
Oops. I had the mode set wrong. Try it now and see if works
better for you.
BLS
"Brian L. Stuart" <blstuart@bellsouth.net> writes:
> On Wed, 3/9/16, Vasudev Kamath <vasudev@copyninja.info> wrote:
>>> The second talks to the MMA8451 3-axis accelerometer:
>>>
>>> http://cs.drexel.edu/~bls96/plan9/mma8451sa.c
>>
>> This link gives Forbidden message (403)
>
> Oops. I had the mode set wrong. Try it now and see if works
> better for you.
>
Yep it works now. Thank you.