DIYables Screw Terminal Block for Arduino Uno
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Quick Overview
The DIYables Screw Terminal Block Adapter is a two-piece set that breaks out all Arduino pins to clearly labeled screw terminals. Each piece handles one row of pins, providing secure, solderless wire connections for Arduino UNO-form factor boards (UNO R3, R4 WiFi, R4 Minima, Leonardo, Zero) and Mega-form factor boards (Mega 2560, Due). Perfect for permanent installations and projects requiring reliable, vibration-resistant connections.
Simply attach both pieces to your Arduino using the included female headers and connect wires directly to the screw terminals—no soldering, breadboards, or jumper wires needed. The industrial-grade terminals accept both solid and stranded wires for professional, maintainable connections in robotics, home automation, industrial control, and educational projects.
Key Features
- Two-Piece Modular Design : Set includes two separate adapter pieces, with each piece providing screw terminals for one row of Arduino pins, offering flexible mounting and cable management options
- All Pins Broken Out to Screw Terminals : Every Arduino pin (digital, analog, power, ground) accessible via clearly labeled screw terminals for complete project flexibility and easy wire management
- No Soldering Required : Industrial-grade screw terminals accept wires directly with simple screwdriver tightening, eliminating soldering and enabling quick modifications or troubleshooting
- Secure Wire Connections : Robust screw-down connections provide vibration-resistant, reliable contacts that won't accidentally disconnect like jumper wires or breadboard connections
- Universal Compatibility : Works with both UNO-form factor boards (Arduino UNO R3, R4 WiFi, R4 Minima, Leonardo, Zero, DIYables STEM boards) and Mega-form factor boards (Mega 2560, Due)
- Clearly Labeled Terminals : Each screw terminal marked with corresponding pin name (D0-D13, A0-A5, VIN, 5V, 3.3V, GND) for quick identification and error-free wiring
- Female Pin Headers Included : Comes with female headers for easy installation—simply plug each piece into one side of Arduino without additional components needed
- Accepts Multiple Wire Types : Screw terminals accommodate both solid core and stranded wires in various gauges for flexible connection options
- Simple Installation : Attach both adapter pieces to Arduino boards (one per pin row), tighten your wires into terminals, and start working—setup takes minutes
- Perfect for Permanent Installations : Ideal for long-term deployments, industrial environments, and projects where reliability and maintenance are critical
- Flexible Cable Management : Two-piece design allows positioning each adapter piece for optimal wire routing and organization in your enclosure or project layout
- Professional Appearance : Clean, organized wiring solution delivers industrial-quality look for finished projects and commercial applications
- Versatile Applications : Excellent for robotics, home automation, motor control, sensor networks, industrial controllers, permanent installations, educational labs, and prototyping final designs
SPECIFICATION
| Specification | Value |
|---|---|
| Adapter Type | Two-Piece Screw Terminal Adapter Set |
| Number of Pieces | 2 (one for each pin row) |
| Terminal Type | Screw terminals (all pins) |
| Digital Pins | D0-D13 (screw terminals) |
| Analog Pins | A0-A5 (screw terminals) |
| Power Pins | VIN, 5V, 3.3V, GND (screw terminals) |
| Included Accessories | Female pin headers |
| Wire Compatibility | Solid core and stranded wires |
| Designed for UNO-form factor boards | Arduino UNO R3, UNO R4 WiFi, UNO R4 Minima, Leonardo, Zero, UNO SMD, DIYables STEM V3, DIYables STEM V4 IoT |
| Also works with Mega-form factor boards | Arduino Mega 2560, Arduino Due |
| Form Factor | Two separate adapter pieces (one per pin row) |
Tested Hardware
| Board | Tested | Notes |
|---|---|---|
| Arduino Uno R3 | ✅ | Fully supported |
| Arduino Uno R4 WiFi | ✅ | Fully supported |
| Arduino Uno R4 Minima | ✅ | Fully supported |
| Arduino Mega | ✅ | Fully supported |
| DIYables STEM V3 Board | ✅ | Fully supported |
| DIYables STEM V4 IoT Board | ✅ | Fully supported |









