Audio and Arduino club projects

• Altoids amp (last update: 10.30.2018)
  The basic kit cost is $13.00. This includes the circuit board and all of the components on it. To complete the project, you will also need an empty Altoids tin and two 9-V batteries. To connect to your music source, you will need an audio cable that plugs into your phone or computer on one end and has a 3.5 mm "TRS" audio plug on the other.