ESP8266 1S Breakout Adapter

The ESP8266 1S Breakout Adapter is a compact, plug-and-play interface board designed specifically for ESP-01 and ESP-01S WiFi modules. It simplifies the development and testing process for embedded and IoT applications by offering a breadboard-friendly layout, clear pin labeling, and reliable electrical connections. This makes it an essential component for hobbyists, students, and professionals developing wireless systems.

This adapter features a standard 2.54mm pitch, perfectly suited for direct integration into breadboards and perfboards without the need for additional wiring. It routes all the necessary pins of the ESP module, including TX, RX, CH_PD, GPIO0, GPIO2, RST, GND, and VCC, providing seamless connectivity to your Arduino, ESP32, or other microcontrollers such as STM32.

With its compact PCB footprint and soldered headers, the ESP8266 1S Adapter is a reliable tool for quick prototyping, debugging, firmware flashing, and deployment in smart devices and IoT nodes.

Key Features & Technical Specifications:

• Module Compatibility: ESP-01, ESP-01S

• Pin Configuration: GND, TX, RX, CH_PD, GPIO0, GPIO2, RST, VCC

• Pitch: 2.54mm (breadboard-compatible)

• Voltage Requirement: 3.3V (Ensure regulated input)

• Dimensions: Compact and lightweight

• Material: High-quality FR-4 PCB

• Output Support: UART serial communication

• Ideal For: Smart WiFi devices, IoT networks, sensor-based automation

Precautions & Usage Tips:

• Always use a 3.3V regulated power supply when connecting ESP-01 to avoid damaging the module.

• Avoid hot-plugging the ESP-01 into the adapter while it’s powered, as this can short circuit or damage GPIO lines.

• Ensure proper orientation of the ESP-01/01S module to avoid reverse connection issues.

• When flashing firmware, make sure GPIO0 is pulled LOW and the RST pin is used properly.

• Do not connect the VCC pin to 5V; it must be strictly 3.3V for safe operation.

• Refer to ESP8266 documentation for hardware-level configurations and safety guides.

Applications:

• ESP8266 firmware flashing interface

• WiFi-based IoT module setup and deployment

• Quick ESP01 breadboard prototyping

• DIY smart automation systems

• STEM and academic projects

• Wireless robotics and remote sensing

• Lab testing and field diagnostics

Find it at ElectroWay — proudly based in Johar Town, Lahore — your trusted partner for electronics components, educational tools, and IoT modules across Pakistan.

Helpful Links & Related Products:

• ESP8266 WiFi Modules

• Arduino Boards

• Microcontroller Accessories

• Modules

Watch on YouTube:
ESP8266 Adapter Setup & How It Works