Breadboard trim potentiometer - 10K
Digital Potentiometer - 10K
Gikfun In4007 DIP Plastic Rectifier Diode Mic for Arduino DIY (pack of 100pcs)
High-strength "Rare Earth" Magnet
IRF520 MOSFET Transistor
N-channel power MOSFET - 30V / 60A
Octocoupler (20 pack)
Rotary Potentiometer - Linear (10k ohm)
Voltage Regulator, 3.3V
Voltage Regulator, 5V