ALLNET Brick'R'knowledge Dual GPIO Monitoring LED 3mm with Ground

The ALLNET Brick'R'knowledge Dual GPIO Monitoring LED 3mm with Ground is a compact plug-in module designed for visual status indication of GPIO pins. It features two green 3mm through-hole LEDs with a common ground connection, making it ideal for prototyping, education, and hobby electronics projects. Compatible with the Brick'R'knowledge system, it connects via a standard 4-pin connector and supports 3.3V/5V GPIO levels.

Advantages

Easy solderless connection allows quick integration into breadboard or Brick'R'knowledge setups. The dual LED design provides two independent monitoring channels, while the common ground simplifies wiring. Compact and modular, it fits seamlessly into larger Brick'R'knowledge projects.

Suitable for

• Monitoring GPIO status on microcontrollers like Raspberry Pi or Arduino (with adapter)
• Educational electronics and prototyping
• Visual feedback in Brick'R'knowledge modular systems

Key specifications

• Product Type: GPIO Monitoring Module
• Number of LEDs: 2
• LED Diameter: 3 mm
• LED Color: Green
• Interface: Brick'R'knowledge standard connector (4-pin)
• Input Voltage: 3.3V / 5V (GPIO compatible)
• Ground Connection: Common Ground
• Mounting Type: Plug-in module
• Material: PCB with electronic components
• Series: Brick'R'knowledge

Recommendations

For best results, use with ALLNET Brick'R'knowledge base boards and compatible microcontrollers. Ensure proper GPIO voltage levels to avoid damage.