I'm working on a project that uses electromagnets to generate and sustain motion in the tines of a tongue drum (HAPI brand). I'm going to start by replicating the EBow circuit (a commercial guitar sustainer/bow)...a schematic can be viewed here:
While shopping for the LM386 controller, I found these prefab boards: https://www.amazon.com/gp/product/B00LNACGTY/ref=ox_sc_act_title_6?smid=A30QSGOJR8LMXA&psc=1
It appears that I could still use the board instead of building a circuit from scratch, plugging in the sensing and driving EMs to the in/out and complimentary grounds...could it be this easy?!?
Also, while I have heard that this circuit does generate a driving force from silence (maybe picking up on ambient noises to initially tune the driver), I am wondering about sending an initial signal to the driver EM in the range of the frequency of its targeted tine. I am wondering what the best way to do this is when I discovered that the tone function basically sends an oscillating voltage to a type of electromagent (buzzer) already...can I use the tone() function with electromagnets?
Thanks so much for any help. I'm about 1 month into the Arduino world but loving every moment of it!