Screw terminal shield - 20 I/O pins, for Arduino UNO R3

Product Overview

• Connection module for Arduino UNO boards with screw terminals instead of pin headers
• All 20 digital and analog pins brought out to screw terminals
• Inputs and outputs for sensors and actuators can be connected without a soldering iron
• Fits Arduino UNO, compatible boards, and electrically equivalent variants
• Shield connection with stackability for additional modules

Product Description

This connection module connects an Arduino UNO to components via screw terminals. Instead of plugging or soldering wires directly to pins, cables or wires are inserted into the terminals and secured with a screw. This reduces the risk of errors during repeated assembly and modifications and makes rewiring considerably easier.

All 20 I/O pins of the Arduino are available on the module: the 14 digital pins for digital inputs, outputs, and PWM functions, the six analog inputs, as well as power supply and ground. The Arduino remains undamaged; the shield is simply plugged onto the pin headers.

Typical applications include experimental setups with push buttons, switches, and basic sensors, as well as controlling LEDs, relays, or motors via individual pins. For changing prototypes, the screw terminal saves time because cables can be connected without crimping or soldering. Troubleshooting is also easier because individual cables can be removed or replaced without damaging the board.

The Arduino itself and any additional shield modules can be plugged in underneath or above it. The connection module itself does not require a power supply; the Arduino is powered as usual via USB or an external power supply.

Safety Notice

The shield is intended exclusively for building prototypes and for testing and development purposes. It is not intended for operation in household electrical circuits or other power supplies with direct mains voltage. When connecting consumers with higher currents or inductive loads such as relay coils, qualified electricians must be involved; if in doubt, consult a qualified electrician before commissioning.