Amazon.com: Arduino UNO REV3 [A000066] : Electronics
Electronics-Salon Arduino Screw Terminal Block Breakout Module, for Arduino UNO R3.: Amazon.com: Industrial & Scientific
Amazon.com: Arduino Leonardo with Headers [A000057] : Electronics
Amazon.com: GAR Monster Starter Kit for Arduino Uno Mega Nano, Complete Advanced Set w/ ESP32, 25 Sensor Modules, Bluetooth WiFi Ethernet Wireless for Electronics STEM Robotics Projects : Electronics
Arduino® UNO R4 Minima — Arduino Official Store
Dimmer modules for use with microcontroller ESP32, ESP8266, STM32, Arduino UNO, Mega, Nano, Leonardo, Connection to ESPHome, Home Assistant, Amazon AWS, OpenHAB, MQTT - Rocket Controller