Stackable 4-Ch. I2C Relay Shield DIY Kit for Arduino

CANADUINO Arduino Pocket Calculator DIY Kit

Arduino leonardo compatible, custom shield PCB for HVAC systems

CANADUINO MEGA328 PLC-100 DIY Kit V2 (Arduino Nano PLC)

140pcs Solderless Breadboard Jumper Cable Wire Kit Box DIY Shield For Arduino

Arduino Compatible UNO R3 PLUS Sensor I/O Shield Atmega328P 16U2 Expansion Board

DIY Prototype PCB Protoshield for Arduino UNO R3 Mega 1280 2560 328 Shield Board

10Pcs 2.54 mm 8Pin Stackable Long Legs Female Header For Arduino Shield