ESP8266 Adapter Board for ESP-07 ESP-08 ESP-12 Modules

The ESP8266-DEV is a dedicated adapter board that simplifies working with ESP-07, ESP-08, and ESP-12 surface-mount ESP8266 Wi-Fi modules by breaking out their fine-pitch pads to standard 2.54mm headers. The bare modules use a 2mm pitch that is incompatible with breadboards and standard perfboard, but this ESP8266 adapter board routes every I/O, power, and UART pin to a solder-friendly 16-pin layout that plugs directly into a breadboard or prototyping board. The PCB includes a reserved land pattern on the bottom layer for a 3.3V SMD voltage regulator (with a 0-ohm jumper that must be removed before fitting a regulator), along with a 10K pull-up resistor already populated. Measuring 31mm by 28mm with a 1.6mm PCB thickness, the board is compact enough to fit inside small enclosures while remaining easy to handle during soldering and testing. Whether you are flashing firmware, debugging UART communication, or building a quick prototype around an ESP8266 module, this ESP8266 breakout board removes the need for custom PCBs and lets you focus on the firmware and application.

ESP8266 adapter board Application

1. Flashing AT firmware or custom sketches to ESP-07, ESP-08, and ESP-12 modules.
2. Debugging UART communication between ESP8266 modules and host microcontrollers.
3. Breadboard prototyping of Wi-Fi sensor nodes and IoT endpoints before custom PCB design.
4. Recovering or testing modules with fine-pitch pads that are difficult to access directly.
5. Swapping between ESP8266 variants during development using a single adapter platform.

ESP8266 adapter board Specifications

1. Compatible modules: ESP-07, ESP-08, ESP-12 (ESP8266 series)
2. Number of breakout pins: 16
3. Header pitch: 2.54mm (0.1 inch)
4. PCB dimensions: 31mm × 28mm
5. PCB thickness: 1.6mm
6. PCB color: white
7. Weight: approximately 4g
8. Voltage regulator footprint: reserved land pattern for 3.3V SMD regulator on bottom layer
9. Jumper: 0-ohm resistor must be removed before fitting a regulator
10. Pull-up resistor: 10KΩ populated on PCB
11. Operating temperature: -40°C to +125°C
12. Soldering: manual soldering required for module attachment