drv2605 external trigger mode

[mofuzz]

Hello,

Can anyone please share an example of how to use the drv2605 haptic controller board in external trigger mode using the "in" pin being driven by a digital output?

Can I use the board without it being connected to I2C?

Thanks.

[mikeysklar]

You will need the i2c connection to set the mode of the chip.

Do you know which of trigger mode you would like to use? I'm guessing MODE_EXTTRIGEDGE or MODE_EXTTRIGLVL based on your description of a digital in.

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The mode of the chip. Should be a value of:

MODE_INTTRIG: Internal triggering, vibrates as soon as you call play(). Default mode.

MODE_EXTTRIGEDGE: External triggering, edge mode.

MODE_EXTTRIGLVL: External triggering, level mode.

MODE_PWMANALOG: PWM/analog input mode.

MODE_AUDIOVIBE: Audio-to-vibration mode.

MODE_REALTIME: Real-time playback mode.

MODE_DIAGNOS: Diagnostics mode.

MODE_AUTOCAL: Auto-calibration mode.

https://docs.circuitpython.org/projects ... t/api.html

[mofuzz]

Thanks for your reply.

Yes, I was thinking of MODE_EXTTRIGEDGE.

[mikeysklar]

I don't have a working example code for MODE_EXTTRIGEDGE, but You should be able to pass in the value during initialization.

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drv = adafruit_drv2605.DRV2605(i2c, MODE_EXTTRIGEDGE)

more info here:

; docs
https://docs.circuitpython.org/projects ... it_drv2605

; driver source
https://github.com/adafruit/Adafruit_Ci ... 605.py#L92

; datasheet
https://www.ti.com/lit/ds/symlink/drv2605.pdf