SainSmart UNO R3 Keypad Shield LCD Module Display
Best all in one for Arduino beginners and hobbyists.
This board is the ultimate starter kit for anyone tired of juggling voltage mismatches. By adding a built-in display and switchable logic levels, it solves the most common headaches of prototyping. You sacrifice a bit of raw, minimalist simplicity for a much smoother, plug-and-play experience.
$29.99
Who it's for
- Novice electronics enthusiasts seeking a quick start to interactive projects
- Students and hobbyists on a budget exploring microcontroller programming
- Makers wanting to build functional prototypes without extensive component sourcing
Who should skip it
- Advanced users needing many available pins for complex, multi-component projects
- Developers requiring rich graphical interfaces or detailed data visualization
- Professionals or critical applications demanding guaranteed component longevity and performance
Performance breakdown
Voltage Versatility
Switchable logic levels make integrating modern 3.3V sensors effortless and safe.
Interface Accessibility
The included LCD keypad shield provides immediate, tactile feedback for prototyping projects.
Ecosystem Compatibility
Standard Uno form factor ensures seamless integration with existing shields and libraries.
Power Flexibility
Dual power options via USB or DC jack accommodate diverse project environments.
Prototyping Connectivity
Expanded I/O pins offer slightly more headroom for complex sensor arrays.
Software Integration
Native Arduino IDE support guarantees a frictionless, plug-and-play coding experience.
Key Specs
Microcontroller Processor
ATmega328P
Operating Voltage
3.3V/5V (Switchable)
Input Voltage
7-12V (DC Jack)
Digital I/O Pins
14
Analog Input Pins
8
DC Current per I/O Pin
40 mA
Flash Memory
32 KB
SRAM
2 KB
Clock Speed
16 MHz
Form Factor
Arduino Uno Compatible
Know before you buy
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