Arduino

Cool Components

LED Shield - Compatible with Arduino Uno

Arduino

Arduino MKR IoT Carrier

Arduino

Arduino MKR THERM Shield

Arduino

Arduino MKR RGB Shield

Adafruit

Arduino MKR ETH Shield

Arduino

Arduino MKR Mem Shield

SparkFun

SparkFun RedBoard Edge (DEV-14525)

SparkFun

SparkFun Arduino ProtoShield - Bare PCB (DEV-13819)

Arduino

MKR2UNO Adapter

Seeed Studio

Seeeduino Stalker v3

PixelMatix

SmartMatrix Shield V4 for Teensy 3

LilyPad

LilyPad SimpleSnap

SparkFun

Fio v3 - ATmega32U4 (DEV-11520)

Arduino

Genuino MKR Proto Shield

SparkFun

LilyPad Slide Switch (DEV-09350)

Generic / OEM

Conductive Thread Bobbin - 30ft

SparkFun

ProtoScrewShield (DEV-09729)

SparkFun

Arduino ProtoShield Kit (DEV-13820)