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NodeMCU V2 ESP8266 — The Compact, CP2102-Powered IoT Development Board
The NodeMCU V2 (Amica) ESP8266 Development Board is the narrower, more refined generation of the NodeMCU family. With its CP2102 USB-to-serial chip, compact width, and clean ESP-12E module at its core, it is the preferred NodeMCU for builds where breadboard real estate matters or where you need reliable USB connectivity across macOS, Windows, and Linux without hunting for drivers.
NodeMCU V2 vs V3 — which one should you buy?
| Feature | NodeMCU V2 (this board) | NodeMCU V3 (CH340) |
|---|---|---|
| USB chip | CP2102 — premium, widely supported | CH340G — common, good on Windows |
| Board width | Narrower — fits standard breadboard with pins on each side | Wider — occupies entire breadboard width |
| Driver ease | Often auto-installs on macOS & Linux | Requires CH340 driver on macOS/Linux |
| ESP module | ESP-12E | ESP-12E |
| Flash memory | 4 MB | 4 MB |
| Breadboard use | ✅ Leaves one pin row free on each side | ❌ Blocks entire breadboard width |
| Best for | macOS/Linux users, breadboard builds, tidy wiring | Windows users, budget builds |
Key features
- CP2102 USB bridge: Rock-solid serial connection, excellent OS compatibility
- Narrow form factor: Leaves rows free on a breadboard for sensor wiring
- 4 MB flash: Space for firmware, OTA, and LittleFS file system
- 11 digital GPIO pins: PWM, I2C, SPI, UART all available
- 1 analog input: 10-bit ADC, 0–3.3V range
- Micro-USB: Power and program from any USB port
- Auto-reset circuit: No need to manually press buttons to enter flash mode
Technical specifications
| Core Module | ESP8266 ESP-12E |
|---|---|
| USB Bridge | CP2102 |
| Flash Memory | 4 MB |
| Digital GPIO | 11 (PWM, I2C, SPI, UART) |
| Analog Input | 1 × ADC (0–3.3V, 10-bit) |
| WiFi | 802.11 b/g/n, 2.4 GHz |
| Power Input | Micro-USB or VIN |
| Logic Level | 3.3V |
| Programming | Arduino IDE, MicroPython, NodeMCU Lua |
Frequently Asked Questions
Does this fit on a standard breadboard? Yes — the narrower V2 form factor leaves one row of holes free on each side of the breadboard, unlike the wider V3.
Which NodeMCU version should I choose — V2 or V3? V2 is better for macOS/Linux users and breadboard builds. V3 is wider but more common and cheaper. Both use the same ESP8266 chip and have the same programming capability.
What is the ADC voltage range? 0V to 3.3V. Do not exceed 3.3V on the ADC pin or you may damage the chip.
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.
Compatibility & downloads
// downloads
- Datasheet pdf
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