Quantity   Component name
1 × Solderable BreadBoard 3"x4.25"
1 × SparkFun Pro Mini 5V 16 Mhz board
7 × diode 1N914
3 × Capacitor 1000 ufd 50 volts
3 × LM2596 adjustable buck switching supply module
2 × Trim pot 2 k ohms
2 × Screw terminal 6 contacts
2 × screw terminal 2 contacts
1 × Wall Transformer 16.5 VAC 20 VA
1 × Bridge Rectifier 6 amps 400 volts
7 × BS170 N-channel Enhancement Mode FET
7 × Resistor 1 K 1/4 watt