HAPTIC Project : How to drive Linear Resonant Actuator (LRA) with DRV2605L (ROB-14031) board

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Hi All, I have struggled with driving an LRA with the chips on my own PCB with a Nano. Now managed to acquire the break out board, but still can hear (and measure) the LRA getting DC signals for ERM (eccentric motor vibration), not square wave drive. Please point me in the right direction to change the sketch to correct this. I need to actually drive LRAs using ATtiny85s. But that’s another thing altogether!

Thanks

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'Cmon Guys - somebody knows about it.

All I want is to change the example program from Sparkfun to drive the LRA with the 123 different embedded patters in the DRV2605L. They mention using Library Number 7 for LRA; it makes NO difference!

Please help me!

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Hello,

Sorry for the delay. I’ll try to help you as best as I can. Can you confirm if you have tried using number 6?