Adafruit
Proto-Screwshield R3 Kit for Arduino
Best prototyping solution for makers building robust, permanent Arduino projects.
Enhance your Arduino projects with the Adafruit Industries Proto-Screwshield R3 Kit. This versatile shield combines a spacious 0.1" grid prototyping area with secure screw terminal blocks, extending your Arduino's pins for reliable connections. It includes extra terminals for GND and four free connections, offering flexibility for various projects. The kit comes with a PCB board, LEDs, a reset button, headers, and terminal blocks, making it a comprehensive solution for prototyping and expanding Arduino capabilities. Ideal for makers and hobbyists looking to create more robust and organized electronic projects.
$14.99
Owner Satisfaction
4.7
/ 5
Category Rank
27
/ 775
#27 in Circuit Board Accessories
Price vs Category Average
-44%
Below average
Type
Electronics Kit
/ Electronics Kit
Who it's for
- Makers building permanent projects needing secure, reliable connections
- Engineers designing custom circuits directly onto their controller
- Hobbyists using standard Arduino R3 boards for easy stacking
Who should skip it
- Budget-conscious users seeking a basic, low-cost prototyping solution
- Beginners lacking soldering experience or necessary assembly tools
- Designers working with limited space inside compact enclosures
Performance breakdown
Connection Reliability
Screw terminals provide a far more secure grip than standard headers.
Prototyping Versatility
The spacious grid layout accommodates complex custom circuitry with ease.
Assembly Accessibility
Through-hole components make this an approachable project for beginner makers.
Stacking Compatibility
Standard R3 footprint ensures seamless integration with existing Arduino shield stacks.
Signal Accessibility
Dedicated breakouts for I2C and SPI simplify advanced sensor wiring.
Build Durability
Robust PCB construction stands up to repeated modifications and field use.
Key Specs
Type
Electronics Kit
Warranty
1 Year Parts
Warranty
1 Year Labor
What's in the Box
PCB Board, Green LED, Red LED, Reset Button, Headers, Terminal Blocks
Dimensions
67mm x 73mm x 1.6mm (2.6in x 2.9in x 0.06in)
Weight
35g (1.25oz)
Terminal Blocks
36 total (3.5mm)
Serial Interfaces
1 I2C, 1 SPI
Features
- Dual-purpose prototyping shield
- Secure screw terminal connections
- Large 0.1" grid prototyping area
- Extends Arduino pins to sturdy screw terminal blocks
- Includes bonus terminals for extra GND
- Four 'free' terminals for custom connections
- Comes with PCB, LEDs, reset button, headers, and terminal blocks
- Secure wiring via screw terminal blocks
- Stackable design compatible with R3 shields
- Includes stacking header for ICSP pins
- Breakout pins for SCL and SDA signals
- Onboard power and user-selectable LEDs
- Easy assembly with through-hole parts
What customers say
Customers highly value the Proto-Screwshield R3 Kit for transforming Arduino projects from temporary setups to reliable installations. The core appeal lies in combining a prototyping area with high-quality screw terminals, which significantly boosts connection stability, especially where movement occurs. Reviewers consistently praise the durable PCB quality, typical of Adafruit. Clear labeling aids assembly, though soldering is required. This shield excels at simplifying wiring management and troubleshooting complex projects. The consensus is that it delivers excellent functional value, providing professional grade connectivity that justifies the investment over less robust options.
Know before you buy
Yes, the Proto-Screwshield R3 is designed to be fully compatible with the standard Arduino R3 layout, including the stacking headers for ICSP pins and the breakout pins for SCL and SDA signals.
No, this is a DIY kit. You will need to solder the included headers, terminal blocks, LEDs, and reset button onto the PCB yourself.
Yes, the board features a stackable design, allowing you to connect additional shields on top of the Proto-Screwshield.
The four 'free' terminals are uncommitted connection points that allow you to wire external components or sensors directly to the board without needing to solder them to the prototyping grid.
The terminal blocks are standard 3.5mm pitch, which are best suited for typical hook-up wire or jumper wires. They are designed for secure, reliable connections in prototyping environments rather than heavy-duty power cabling.
You will need a soldering iron, solder, and a pair of wire cutters to trim the excess leads after soldering the components to the board.
Still have a question?
Ask Hayley anything about this product before you decide.