Hi Grumpy_Mike, thank for answer..... that's what i'm looking for, a good preamplifier or amplifier that give a good signal to arduino.
I've tried with 386 circuit, but the sensibility is too poor.
Hi Grumpy_Mike, thank for answer..... that's what i'm looking for, a good preamplifier or amplifier that give a good signal to arduino.
I've tried with 386 circuit, but the sensibility is too poor.