ESP8266 GPIO Expansion Board with Screw-Terminal Adapter 

For Easy Prototyping & Long-Term IoT Installations

The  ESP8266 GPIO Expansion Board is designed to make prototyping and permanent IoT installations cleaner, more stable, and easier to manage. By converting the ESP8266’s pins into sturdy screw-terminal connections, it eliminates messy jumpers and unreliable wiring, giving you a professional and robust interface for sensors, modules, and control circuits.

---

Key Features & Benefits

• Full GPIO Breakout
  All major ESP8266 pins are made available through clearly labeled screw terminals, including digital I/Os, ADC, and control pins.

• Strong Screw-Terminal Connections
  Perfect for permanent installations — provides vibration-resistant, secure wiring that won’t disconnect easily.

• Breadboard-Free Prototyping
  Lets you build compact, neat prototypes without relying on jumper wires or breadboards.

• Error-Free Wiring
  Well-labeled terminals help prevent wiring mistakes, even in complex IoT projects.

• Ideal for Long-Term IoT Devices
  Great for home automation, monitoring systems, wall-mounted devices, and smart controllers that must run continuously.

• Compact & Durable PCB
  Low-profile design that fits easily alongside ESP8266 boards without adding bulk.

---

Ideal Applications

• Smart home automation

• Relay and sensor modules

• Permanent IoT installations

• Environmental monitoring stations

• Robotics and control systems

• Educational and testing prototypes

• Custom ESP8266 hubs or gateways

---

Technical Details

• Model: MD2F5774

• Compatible With: ESP8266 development boards (NodeMCU, ESP-12 modules, etc.)

• Connection Type: Screw terminals for each GPIO pin

• Material: Durable FR-4 PCB

• Form Factor: Compact and enclosure-friendly

---

Advantages Over Using Jumper Wires

1. Far more reliable for long-running devices

2. Cleaner and more organized wiring

3. Lower risk of accidental shorts

4. Easier to manage wires for sensors and external modules

5. Better suited for scaling prototypes into permanent products

---

Installation Tips

• Use properly stripped and twisted wires for the strongest hold.

• Tighten screw terminals firmly using a small screwdriver.

• Plan your GPIO usage to avoid conflicts with ESP8266 boot pins.

• Mount inside a protective enclosure for long-term deployment.

---

Final Note

The ESP8266 GPIO Expansion Board with Screw-Terminal Adapter transforms the way you build and deploy ESP8266 projects. It’s ideal for anyone who wants stability, clean wiring, and professional-grade connections — whether you’re prototyping or setting up a permanent IoT installation.