WMYCONGCONG 5 PCS 4 AA Battery Holder with Switch 6V Battery Case Holder with Cover 4 Slots 1.5V AA Battery Storage Box with DC 5.5x2.1mm Plug

Elegoo LYSB01H4ZDYCE-ELECTRNCSMEGA 2560 R3 Board ATmega2560 ATMEGA16U2 with USB Cable Compatible and Arduino

HiLetgo 120pcs/3x40pcs Breadboard Jumper Wires Prototype Board Dupont Wire Male to Male, Male to Female, Female to Female, 2.54mm to 2.54mm 20CM Wires Assortment Kit for Arduino Raspberry PI DIY

Chanzon (10 x Female) 12V DC Power Connector 5.5mm x 2.1mm 24V Power Jack Socket for Led Strip CCTV Security Camera Cable Wire Ends 10Pcs Plug Barrel Adapter

5pack 9v Battery Clip with 2.1mm X 5.5mm Male DC Plug for Arduino by Corpco

Elegoo EL-CB-001 UNO R3 Board ATmega328P ATMEGA16U2 with USB Cable for Arduino

Makerfocus 5pcs nRF24L01+ and ESP8266 ESP-01 Breadboard Breakout Adapter Board Common to Both

Haitronic Unique 2 in 1 Alligator Clip to Dupont Wire 10pin 20cm Male, Crocodile Clip to Jumper Wire 10pin 20cm Female for Test Lead Arduino/Raspberry pi/Orange pi/Makey Makey & 3D Print Prototype

LAMPVPATH 3 Pcs 4 x 1.5V (6V) AA Battery Holder with 3 Pcs 9V I Type Snap Connector Plastic Housing

HiLetgo HC-05 6 Pin Wireless Bluetooth RF Transceiver Module Serial BT Module for Arduino

Elegoo EL-CP-003 3pcs MB-102 Breadboard 830 Point Solderless Prototype PCB Board Kit for Arduino Proto Shield Distribution Connecting Blocks