SainSmart
SainSmart Leonardo R3 + LCD 1602 Keypad V3
Best starter kit for electronics learning and rapid prototyping.
The SainSmart Leonardo R3 is a microcontroller board based on the ATmega32u4, offering 20 digital I/O pins, 7 PWM outputs, and 12 analog inputs. It features a micro USB connection, power jack, and ICSP header. This kit includes the Leonardo R3 board and a 1602 LCD Keypad Shield V3, providing a blue backlight LCD display with adjustable backlighting and easy pin connections for Arduino boards. It's designed for Arduino fans and starters, offering a complete setup to begin projects.
$26.99
Owner Satisfaction
4.2
/ 5
Category Rank
1347
/ 1543
#1347 in Development Boards
Price vs Category Average
-69%
Below average
Microcontroller
324
/ ATmegau
Who it's for
- Beginners and hobbyists eager to add user interaction to projects.
- Developers creating unique human interface devices or game controllers.
- Students and budget-conscious makers building their first interactive systems.
Who should skip it
- Advanced users requiring numerous free pins for extensive project expansion.
- Makers planning to integrate multiple shields into a single project.
- Beginners accustomed to Uno expecting identical programming and debugging experiences.
Key Specs
Microcontroller
ATmega32u4
Operating Voltage
5V
Input Voltage (recommended)
7-12V
Input Voltage (limits)
6-20V
Digital I/O Pins
20
PWM Channels
7
Analog Input Channels
12
DC Current per I/O Pin
40 mA
Features
- Integrated LCD and Keypad
- Wide Arduino Compatibility
- Multiple Power Options
- Adjustable Backlighting
- Ample I/O Pins
- USB Programmable
What customers say
Customers generally appreciate this kit for its straightforward integration and excellent value, particularly for those new to electronics. The combination of the Leonardo board and LCD keypad shield offers a convenient starting point for various projects. Many find it easy to set up and begin coding, making it a popular choice for educational purposes and hobbyists. While some minor component variations are noted, the overall consensus points to a highly accessible and cost effective solution for learning and prototyping.
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$27