Uno R3 is the ideal board for getting started with electronics!
This simple set for 3D printer base on microcontroller Mega 2560 + RAMPS 1.4 + motor drivers, it is a solution for
The Micro ATmega32U4-MU is a tiny microcontroller board based on the ATmega32U4. It has 20 digital input/output pins...
Relay Shield for Arduino Uno, 4 relays
UNO WiFi R3 ATmega328P ESP8266, 32Mb flash, USB-TTL CH340G, Micro-USB
Uno R3 Minimal KIT compatible for Arduino Uno R3 KIT projects, with breadboard and jumper wires, USB cable
Expansion Shield for TFT 2.8 inch LCD Touch Screen, for Uno/Mega