# ESP-12F (Component)
## Description
WiFi 802.11b/g/n Transceiver Module 2.4GHz ~ 2.5GHz Integrated, Trace Surface Mount
The ESP-12F is a compact WiFi module based on the ESP8266EX, widely used in IoT and embedded systems due to its low cost and built-in networking capabilities.
Integrated WiFi (2.4 GHz)
Supports 802.11 b/g/n
Built-in TCP/IP stack (no external WiFi processor needed)
Microcontroller + WiFi in one
Powered by the ESP8266EX SoC
Can run user applications directly (not just a WiFi modem)
Flash Memory
Typically 4 MB SPI flash (varies by version)
GPIO Support
Multiple multifunction pins:
Digital I/O
PWM
I2C
SPI
UART
ADC (1 channel)
Size: ~16 mm × 24 mm
Mounting: Castellated SMD module
Antenna:
Built-in PCB trace antenna (requires proper keepout zone)
Power Requirements
Operating Voltage: 3.0V – 3.6V (typical 3.3V)
Current Consumption:
Idle: ~70 mA
Peak (TX): up to ~300 mA
Common Interfaces
UART – programming and debugging
SPI – peripheral communication
I2C (software-based)
GPIO – general-purpose control
#commonpartslibrary
#transceiver
#module
#wireless
#rf
#wifi
## Component Details
- **Owner:** adrian95
- **Created:** 10/5/2022
- **Last Updated:** 4/21/2026
- **Visibility:** Public
- **Manufacturer Name:** Adafruit Industries LLC
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Manufacturer Part Number:** 2491
- **Datasheet URL:** https://media.digikey.com/pdf/Data%20Sheets/Adafruit%20PDFs/2491_Web.pdf
- **Symbol Style:** parametric-v1
- **Part Type:** Module
- **Used in:** 159 projects
- **Forks:** 1
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/2491/adafruit-industries.html?utm_currency=USD®ion=nac) | $8.58 | 0 |
| [Digi-Key](https://www.digikey.com/en/products/detail/apex-tool-group/2491/8119333) | $0.13 | 11K |
| [LCSC](https://www.lcsc.com/product-detail/C6051829.html) | $13.3906 | 0 |
| [Mouser](https://www.mouser.com/ProductDetail/Heyco/2491?qs=wpIFxWViIe%2FTq%252BZkuZSxDw%3D%3D) | $0.10 | 36K |
| [Verical](https://www.verical.com/pd/heyco-products-inc--cable-accessories-2491-7310763?utm_currency=USD) | N/A | N/A |
- **Part Type:** Modules
- **Manufacturer:** Adafruit
- **MPN:** 2491
- **Mount Type:** Surface Mount
- **Package / Case Code:** Module
- **Pin Count:** 22
## Pins
| Pin | Name | Type |
|-----|------|------|
| 8 | VCC | |
| 22 | TXD0 | |
| 9 | CS0 | |
| 21 | RXD0 | |
| 2 | ADC | |
| 1 | RST | |
| 3 | EN | |
| 16 | GPIO15 | |
| 7 | GPIO13 | |
| 12 | GPIO10 | |
| 6 | GPIO12 | |
| 18 | GPIO0 | |
| 11 | GPIO9 | |
| 19 | GPIO4 | |
| 17 | GPIO2 | |
| 5 | GPIO14 | |
| 4 | GPIO16 | |
| 20 | GPIO5 | |
| 10 | MISO | |
| 13 | MOSI | |
| 14 | SCLK | |
| 15 | GND | |
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*Generated from [https://www.flux.ai/adrian95/esp-12f~1h1](https://www.flux.ai/adrian95/esp-12f~1h1)*