Noise cancellation!

I managed to buy a 3.5mm headphone jack, and was hoping to use it as a replacement for the 1/4″ audio jack. This is because the Arduino does not have enough power to produce a signal powerful enough to be emitted through a pair of speakers, without the use of an preamplifier/amplifier.

Whilst the 3.5mm audio socket was able to remedy this issue, it presented one of its own; the audio signal produced a lot of noise, and was hard to listen to. I was worried about how to fix this, however I managed to find a solution by using two 100uf capacitors, in order to smooth out the current.

 

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