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Anyone using Witty Pi power control board outhere with HiFiBerry HATS?

Gregvds0

March 31, 2021 17:39

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Hi,

I just ordered a Witty Pi3 II from pihut. The goal is to handle better boot/shut down, as the RemotePi seems to be incompatible with the HiFiBerry Hats (no web page available, no ssh possible, Ethernet leds blinking like mad. Don't know what's happening, so no RemotePi board to handle power and IR, sadly).

The WittyPi board is using I2C pins, addresses 0X68 and 0X69 for communication and eeprom id. 

I'd like to know if this will conflict with HiFiBerry HATs I have, namely DAC2 HD with DSP add-on and DAC+ DSP.

Does someone from HiFiBerry can comment on this I2C usage by your HATs?

Thanks already,

Greg

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4 comments

• 0
  
  Gregvds0 March 31, 2021 17:42

  My sandwich will be, bottom up this: RpI 4, Witty Pi3 II, DAC2 HD, DSP add-on. In this order. 

  This should be ok, if the official RPi 5v 3A power is enough. If not, the WittyPi can accept everything from 6V to 20V or so on another connector...

• 0
  
  Gregvds0 April 01, 2021 15:34

  Ok, 

  after a raspi-config, enabling I2C,

  sudo i2cdetect -y 1 

  answers me this:

       0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
  00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
  10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
  20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
  30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
  40: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- 
  50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
  60: -- -- UU -- -- -- -- -- -- -- -- -- -- -- -- -- 
  70: -- -- -- -- -- -- -- --

  So I'm assuming only 0X4C and 0X62 are used by the DAC2 HD and DSP add-on, right? So, this should not be in conflict with the Witty Pi3 II using 0X68 and 0X69, right? 

  Edited by Gregvds0 April 01, 2021 15:37
• 0
  
  Gregvds0 April 06, 2021 13:26

  Nothing about this, no one?

  As soon as the WittyPi3 is here, I'll try and install it, to check. I'll report here if ok with DAC2 HD and DSP add-on.

  Greg

• 0
  
  Gregvds0 April 16, 2021 06:47

  I got the Witty Pi3 rev 2 and installed it;

  Everything is working fine with the DAC2 HD and DSP add-on :-)!

  I'm under Moode audio, but as shown here under, there should be no I2c conflicts between the HifiBerry hats and this one:

  pi@moode:~ $ sudo i2cdetect -y 1
       0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
  00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
  10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
  20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
  30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
  40: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- 
  50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
  60: -- -- UU -- -- -- -- -- 68 69 -- -- -- -- -- -- 
  70: -- -- -- -- -- -- -- --         

  Edited by Gregvds0 April 16, 2021 06:48