ESP12F PCB Module

The ESP-12F is an advanced Wi-Fi module based on the ESP8266 chip, featuring an integrated PCB antenna, 4 MB of flash memory, and a compact design ideal for IoT applications. It includes the necessary hardware to communicate over Wi-Fi and run custom firmware, making it popular for various Wi-Fi-enabled projects.

Key Specifications for ESP-12F

General Specifications

1. Module Type: Wi-Fi module with built-in antenna and flash memory
2. Chipset: ESP8266EX (by Espressif Systems)
3. PCB Antenna: Integrated high-gain PCB antenna (optimized for 2.4 GHz Wi-Fi band)
4. Flash Memory: 4 MB (32 Mbit)

Electrical Characteristics

1. Operating Voltage (V_CC): 3.0 V - 3.6 V (typically 3.3 V)
2. Power Consumption:
3. Sleep Mode: <10 µA
4. Deep Sleep: <20 µA
5. Modem Sleep: 15 mA
6. Transmit: ~200 mA (peak when Wi-Fi is active)
7. GPIO Pins: 11 General Purpose Input/Output (GPIO) pins
8. ADC Pin: 1 Analog-to-Digital Converter (ADC) pin (10-bit resolution)
9. Communication Protocols: UART, SPI, I2C, PWM (on select pins)

Wireless Specifications

1. Wi-Fi Standard: 802.11 b/g/n (2.4 GHz band)
2. Frequency Range: 2.4 GHz - 2.5 GHz
3. Data Rate: Up to 72.2 Mbps (for 802.11n mode)
4. Encryption: WEP, WPA, WPA2

Flash Memory & Firmware

1. Memory Size: 4 MB (32 Mbit)
2. Boot Options: Supports firmware flashing through UART
3. Programming Environments: Compatible with the Arduino IDE, ESP-IDF, and MicroPython
4. Firmware Compatibility: Runs NodeMCU, AT commands, and custom firmware (supports OTA updates)

Physical Dimensions

1. Module Size: ~16 mm x 24 mm (compact footprint)
2. PCB Thickness: 1 mm

Key Pinouts

1. Power Pins: VCC (3.3 V), GND
2. Communication Pins: TX, RX (for UART programming and serial communication)
3. GPIO Pins: GPIO0 - GPIO16 (varied functionality including PWM, I2C, etc.)
4. Reset and Flash Pins: RST (for reset) and EN (chip enable)

Features

1. Built-in PCB Antenna: Provides stable Wi-Fi connectivity
2. Compact Design: Ideal for integration into small IoT devices
3. Deep Sleep Mode: Ultra-low power consumption mode suitable for battery-operated applications

Applications

The ESP-12F is widely used in:

1. Smart home automation systems
2. IoT devices and sensors
3. Wireless data logging and monitoring
4. Wearable electronics and low-power projects
5. Robotics and wireless controls