SainSmart
SainSmart UNO R3 Improved Version + SainSmart Keypad Shield 1602 LCD Module V3 Display for Arduino
Best all in one for Arduino beginners and hobbyists.
This SainSmart UNO R3 Improved Version development board offers enhanced compatibility and features for Arduino projects. It includes a 1602 LCD Keypad module for easy interaction and display. The board supports switchable 3.3V and 5V logic levels, expanding compatibility with a wider range of modules. With its Arduino Uno R3 form factor, it seamlessly integrates with existing shields and software. Power can be supplied via USB or a DC barrel jack, providing flexible power options for various applications.
$29.99
Owner Satisfaction
4.2
/ 5
Category Rank
1325
/ 1543
#1325 in Development Boards
Price vs Category Average
-66%
Below average
Microcontroller
328
/ ATmegaP-AU
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
Key Specs
Microcontroller
ATmega328P-AU
Operating Voltage
3.3V/5V (Switchable)
Input Voltage
7-12V (DC Jack)
Digital I/O Pins
14 (0-13)
Analog Input Pins
8 (0-7)
DC Current per I/O Pin
40 mA
Flash Memory
32 KB
SRAM
2 KB
Features
- Switchable 3.3V/5V operation for broad compatibility
- Includes 1602 LCD Keypad module for user interface
- Fully compatible with Arduino IDE and software
- Flexible power options via USB or DC Jack
- Expanded I/O pins for more connectivity
- Supports 3.3V modules for enhanced versatility
What customers say
Customers consistently praise this SainSmart kit for its exceptional value and user friendly design, making it an ideal choice for beginners in the Arduino ecosystem. Many reviewers highlight the convenience of having the UNO R3 board and LCD keypad shield bundled together, simplifying project initiation. The components are generally regarded as functional and easy to integrate, which significantly lowers the barrier to entry for learning electronics and programming. While occasional minor documentation gaps are noted, the overarching sentiment emphasizes its accessibility and cost effectiveness as a robust educational and prototyping tool.
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$30