Wolfson Audio and Mausberry Circuits on/off-Switch

Former Member over 11 years ago

Did anybody know a Way to use the Mausberry Switch and the Wolfson Audio Card together?

the Mausberry-Switch uses 2 of the gpio pins.

best regards,

Peter.

0 Former Member over 11 years ago

This circuits on/off-Switch uses only one pin (15)

Wolfson Audio Card patch for RuneAudio : Raspberry Pi • RuneAudio Forum

Attachments:
power_on_off_WAC.zip
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0 Former Member over 11 years ago

Apparently you can disable the serial console and use pins 8 & 10 on the wolfson board:

Here's a handy script you can use to disable the serial console: https://github.com/lurch/rpi-serial-console
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0 Former Member over 11 years ago in reply to Former Member

thank you so far, but my skills are sufficient.
@james: how do i have to edit the Script provided by Mausberry Circuits To use the pins on the wolfson card?
Setup | Mausberry Circuits
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0 Former Member over 11 years ago in reply to Former Member

The pins on the Wolfson card are connected to the Raspberry's GPIO14 (Tx) and GPIO15 (Rx).
At the top of the script you change
"GPIOpin1=23" and "GPIOpin2=24"
to e.g.
"GPIOpin1=14" and "GPIOpin2=15"
--
Ragnar
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0 Former Member over 11 years ago in reply to Former Member

So you mean I have to edit the script (see above) an then I have to connect the "OUT"-pin to the TX-Pin and the "IN"-pin to the RX-Pin on the wolfson card?
I have done so and the pi won't boot. No led on, no power.
Without the switch, with the power-cable directly connected to the pi, the pi boots up to the prompt and then suddenly shuts down, so fast that i can't stop it.
Any idea?
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0 Former Member over 11 years ago in reply to Former Member

I have seen similar behavior, and it that case it turned out that the Wolfson card was broken It drew too much current from the Pi.
Does your Pi run without the Wolfson card attached?
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Ragnar
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0 Former Member over 11 years ago in reply to Former Member

If you have in cmdline*.txt commands "power_pin=15 power_delay=4000", delete it's.
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