Single AA Battery Holder With Wires

10Amp 1KV Diode

LM2596 Adjustable Buck Power Supply

Zener Diode, 500mW 18V 5% - BZX79C18

SMD (surface-mounted device)

5mm LED Green light emitting diode, 5 LEDs per pack

Working current: 20 (mA)

Working voltage: 1.7V-2.1V

SPL-2 Terminal Blocks

3mm LED Red light emitting diode, 5 LEDs per pack

Working current: 20 (mA)

Working voltage: 1.7V-2.1V

Tactile Switch Panel PCB Mount Momentary tactile Switch Push Button for Arduino 6x6x5mm (Pack of 4 Pcs)

Zener Diode, 1W 3V3 5%