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ESP8266 Full Evaluation Board — All GPIO Broken Out, Battery Powered
The ESP8266 ESP-12E EB (Evaluation Board) is designed for engineers who need to test and evaluate the full capabilities of the ESP-12E module before committing to a custom PCB design. Every GPIO pin is broken out with clear labels, the board runs on 3 × AA batteries via an onboard 3.3V regulator, and a built-in USB-to-serial chip means you can start programming immediately without extra hardware.
It is the ideal bench-top evaluation platform — not a production module, not a minimalist breakout. Think of it as the "full exposure" board for serious ESP8266 development.
Key features
- All GPIO exposed: Every pin of the ESP-12E broken out to 2.54 mm headers
- Battery powered: 3 × AA cell holder with onboard 3.3V LDO regulator
- USB-to-serial onboard: Program directly without an external adapter
- Boot mode switches: Easy FLASH / RUN mode switching without manual GPIO wiring
- Reset & Flash buttons: Convenient physical controls for development workflow
- LED indicators: Power and GPIO status LEDs for debugging
ESP-12E EB vs NodeMCU V3 — which evaluation board should you choose?
| Feature | ESP-12E EB | NodeMCU V3 |
|---|---|---|
| Power source | 3 × AA batteries or USB | USB (Micro-USB) |
| GPIO access | All pins broken out, labeled | Standard NodeMCU pinout |
| Boot mode switch | ✅ Physical switches | Auto-reset circuit |
| Form factor | Larger evaluation board | Compact, breadboard-friendly |
| Best for | In-depth hardware evaluation, pin testing | Quick prototyping, projects |
Technical specifications
| Core Module | ESP8266 ESP-12E |
|---|---|
| CPU | Tensilica L106, 80 / 160 MHz |
| Flash Memory | 4 MB |
| WiFi | 802.11 b/g/n, 2.4 GHz |
| Power Supply | 3 × AA cells, onboard 3.3V regulator |
| USB Interface | Onboard USB-to-serial (programming) |
| GPIO | All ESP-12E GPIOs exposed |
| Controls | Reset button, Flash button, Boot mode switches |
Frequently Asked Questions
What is an "evaluation board"? It is a full-featured test platform that exposes all hardware capabilities of the core chip/module so engineers can validate it before designing their own PCB.
Can I use this for a production project? It is designed for evaluation and development, not production. For production, use the bare ESP-12F or ESP-12E module on your own PCB.
Does it work with Arduino IDE? Yes. Select "Generic ESP8266 Module" or "NodeMCU 1.0" in the board manager.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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