DIYables ESP-12F ESP8266 WiFi Module SMD
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Quick Overview
The DIYables ESP-12F is a compact SMD WiFi module built around the ESP8266EX chip by AI-Thinker. It supports 802.11 b/g/n WiFi in both station and soft AP modes, with a built-in PCB antenna for reliable wireless connectivity. The castellated-edge SMD package allows direct reflow soldering onto custom PCBs for clean, space-efficient hardware integration. Onboard 2MB SPI flash provides ample space for firmware and user data storage.
With GPIO, ADC, SPI, I2C, and UART interfaces exposed on the pads, the ESP-12F connects to a wide range of sensors, displays, and peripherals. Operating at 3.3V with an 80MHz clock, it supports deep sleep mode for ultra-low-power battery applications. The module is fully compatible with the Arduino IDE and MicroPython, making firmware development accessible without additional hardware tools.
Ideal for custom PCB designs, wireless sensor nodes, IoT data loggers, home automation endpoints, battery-powered smart devices, and any embedded application requiring compact WiFi connectivity with Arduino or MicroPython support.
Key Features
- ESP8266EX WiFi Chip — Powered by the ESP8266EX SoC with 802.11 b/g/n WiFi supporting station mode, soft AP mode, and station+AP mode simultaneously
- 2MB SPI Flash — Built-in 2MB flash memory for firmware storage and user data with room for OTA updates and file system use
- Castellated SMD Package — Castellated-edge pads allow direct reflow soldering onto custom PCBs for compact, production-ready hardware integration
- PCB Antenna — Integrated PCB antenna provides reliable WiFi signal without the need for an external antenna or connector
- Multiple Interfaces — Exposes GPIO, ADC, SPI, I2C, and UART interfaces for connecting sensors, displays, and peripheral devices
- Deep Sleep Mode — Supports deep sleep with ultra-low current consumption for battery-powered and energy-harvesting IoT applications
- 3.3V Operation at 80MHz — Operates at 3.3V with an 80MHz processor clock for efficient embedded application performance
- Arduino IDE and MicroPython — Fully programmable via Arduino IDE and MicroPython for rapid prototyping and development
- 5 Pack Value — Includes 5 ESP-12F modules for multi-node deployments, PCB prototyping iterations, or project spares
- Versatile Applications — Suitable for wireless sensor nodes, IoT data loggers, home automation, smart devices, and custom embedded WiFi hardware
SPECIFICATION
| Specification | Value |
|---|---|
| Product Type | ESP8266 WiFi SMD Module |
| Module | ESP-12F |
| Chip | ESP8266EX (AI-Thinker) |
| Flash Memory | 2MB SPI Flash |
| WiFi Standard | 802.11 b/g/n |
| WiFi Modes | Station, Soft AP, Station+AP |
| Antenna | Built-in PCB antenna |
| Package Type | SMD (castellated edge) |
| Operating Voltage | 3.3V DC |
| Clock Speed | 80MHz (default), up to 160MHz |
| Interfaces | GPIO, ADC, SPI, I2C, UART |
| Deep Sleep Current | ~20µA (typical) |
| Operating Current | ~80mA (typical, WiFi active) |
| Dimensions | 24mm × 16mm (approx.) |
| Package Quantity | 5 pieces |
| Compatibility | Arduino IDE, MicroPython, ESP-IDF, NodeMCU |
| Applications | IoT sensor nodes, home automation, data loggers, wireless control, custom PCB WiFi integration |
PACKAGE
A package includes:
| Qty | Items |
|---|---|
| 5 | ESP-12F ESP8266 WiFi SMD Module |
COMPATIBLE HARDWARE
- Custom PCBs — direct reflow soldering via castellated SMD pads
- Breakout/adapter boards for ESP-12F — breadboard development and prototyping
- Arduino IDE development environment — ESP8266 core for Arduino
- MicroPython runtime — standard ESP8266 MicroPython firmware
- USB-to-serial adapters (CP2102, CH340, FTDI) — firmware flashing and serial monitoring
- Sensors with I2C, SPI, or UART interface — direct GPIO connection at 3.3V
- 3.3V LDO regulators and power supplies — module power input
- Any embedded system requiring compact WiFi — 3.3V logic compatible
