changes as necessary for multiple HATs#12
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ifurusato wants to merge 1 commit intopimoroni:mainfrom
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Hi @ifurusato. Thank you very much for this! I have a few minor comments I'll list separately. |
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| self._pin_user_sw = gpiodevice.get_pin(self.PI_USER_SW_PIN, "IHM-SW", INPD) | ||
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| # Setup amplifier enable. This mutes the audio by default | ||
| self._pin_amp_en = gpiodevice.get_pin(self.PI_AMP_EN_PIN, "IHM-AMP-En", OUTL if start_muted else OUTH) | ||
| # Setup amplifier enable. This mutes the audio by default | ||
| self._pin_amp_en = gpiodevice.get_pin(self.PI_AMP_EN_PIN, "IHM-AMP-En", OUTL if start_muted else OUTH) |
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Since these are not assigned for the second IHM, I assume that switch_pressed(), mute_audio(), and unmute_audio() will fail if called? Can you include some handling for this? E.g. set self._pin_user_sw and self._pin_amp_en to None then check for that in all relevant places?
Pull Request Test Coverage Report for Build 11788891006Details
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It's possible for multiple library instances to share the same "pin", they just can't both claim it. I did something to this end in the ST7789 library where if pre-claimed pins (basically just a gpiod lines object and an offset) are passed into the constructor, it will use them directly. Might also be useful here? |
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This introduces some backward-compatible changes to the Inventor HAT Mini library to permit multiple HATs co-existing. This disables audio and the User button on anything but the default I2C address of
0x17, since those pins would be in conflict.