ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 1
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 2
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 3
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 4
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 5
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 6
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 7
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 8
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 9
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 10
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 11
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 12
ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino - Image 13

ESP-12E ESP-12F ESP8266 Remote Serial Port WIFI Module Arduino

ESP8266 WeMos D1 MINI ESP-12E IoT WiFi Wireless Board Arduino IDE Compatible
Wemos Mini D1 ESP32 WiFi Bluetooth Development Board CP2104
0 out of 5
( There are no reviews yet. )

Price range: $6.99 through $8.90 Inc. GST
You save (%)

SKU: N/A Category:

Description

Revolutionize your Arduino projects with the ESP-12E/ESP-12F ESP8266 Remote Serial Port WiFi Module!

Type: ESP-12F/ESP-12E Certifications: FCC / CE / TELEC Wireless Standards: 802.11 b/g/n Frequency Range: 2.4GHz-2.5GHz (2400M-2483.5M) Data Interfaces: UART / HSPI / I2C / I2S / IR Remote Control GPIO / PWM Voltage Range: 3.0 ~ 3.6V (recommended: 3.3V) Current Consumption: Average: 80mA Operating Temperature: -40°C ~ 125°C Storage Temperature: Normal Temperature

Unlock the potential of your next Arduino endeavor with this budget-friendly microcontroller module, seamlessly integrated with Wi-Fi capabilities! A part of the ESP8266 series, this module represents a pinnacle in wireless System On a Chip (SOC) technology. Perfectly tailored for minimal space requirements, it provides a comprehensive standalone Wi-Fi networking solution at an unparalleled cost efficiency. Whether hosting applications or delegating Wi-Fi networking functions, this module shines. Boasting an embedded PCB antenna and 9 GPIOs plus ADC, it’s an ideal fusion of versatility and compactness.

A step above its predecessor, the ESP-12F builds on the ESP-12E, flaunting 22 pins and an enhanced antenna design that bolsters communication range by 30% to 50% compared to its 16-pin counterpart. This FCC, CE, and RoHS certified marvel remains fully compatible with earlier editions of the ESP-12 series.

Pinpointing the Ideal Configuration:

  • RST: Reset the module
  • ADC: A/D Conversion result, voltage range 0-1V, scale: 0-1024
  • EN: Chip enable pin, active in high state
  • GPIO16: Wake chipset from deep sleep mode
  • GPIO14: HSPI_CLK
  • GPIO12: HSPI_MISO
  • GPIO13: HSPI_MOSI, UART0_CTS
  • VCC: 3.3V power supply (VDD)
  • CS0: Chip selection
  • MISO: Slave output main input
  • IO9: GPIO9
  • IO10: GPIO10
  • MOSI: Main output slave input
  • SCLK: Clock
  • GND: Ground
  • GPIO15: MTDO, HSPICS, UART0_RTS
  • GPIO2: UART1_TXD
  • GPIO0
  • GPIO4
  • GPIO5
  • RXD: UART0_RXD, GPIO3
  • TXD: UART0_TXD, GPIO1

Enriching Features:

  • 802.11 b/g/n support
  • Integrated 32-bit low-power MCU
  • Built-in 10-bit ADC
  • Comprehensive TCP/IP protocol stack
  • Onboard TR switch, balun, LNA, power amplifier, and matching network
  • Inclusive PLL, regulators, and power management units
  • Antenna diversity support
  • Wi-Fi 2.4GHz, WPA/WPA2 compatibility
  • Modes: STA/AP/STA+AP
  • Seamless Smart Link Function for Android and iOS
  • Versatility: SDIO 2.0, (H) SPI, UART, I2C, I2S, IRDA, PWM, GPIO
  • Advanced configurations: STBC, 1×1 MIMO, 2×1 MIMO, A-MPDU & A-MSDU aggregation, 0.4s guard interval
  • Ultra-low power consumption: <10uA in deep sleep, <5uA power down leakage
  • Rapid wake-up and packet transmission in <2ms
  • Standby power use <1.0mW (DTIM3)
  • +20dBm output power in 802.11b mode
  • Operating temperature range: -40°C ~ 125°C
  • FCC, CE, and RoHS certified

Vital Specifications:

Wi-Fi Essentials

  • Certificates: FCC/CE/RoHS
  • Wi-Fi Protocols: 802.11 b/g/n
  • Frequency Spectrum: 2.4GHz-2.5GHz (2400M-2483.5M)

Hardware Highlights

  • Peripheral Bus: UART/HSPI/I2C/I2S/IR Remote Control, GPIO/PWM
  • Power Range: 3.0~3.6V
  • Operating Current: Averaging 80mA
  • Temperature Range: Operating: -40°C~125°C, Ambient: Normal Temperature
  • Dimensions: 16mm x 24mm x 3mm

Software Excellence

  • Wi-Fi Modes: Station/SoftAP/SoftAP+Station
  • Security: WPA/WPA2, Encryption: WEP/TKIP/AES
  • Firmware Upgrades: UART Download / OTA (via network) / Host-assisted firmware downloads
  • Software Development: Cloud Server Development Support / SDK for customized firmware
  • Network Protocols: IPv4, TCP/UDP/HTTP/FTP
  • User Configuration: AT Instruction Set, Cloud Server Integration, Android/iOS App Compatibility

Package Contents:

1x ESP8266 ESP-12E/F WiFi Module

Unleash the ESP-12E/ESP-12F ESP8266 WiFi Module and transform your Arduino creations into connected wonders!

📌 Code Examples & Usage – ESP-12E / ESP-12F ESP8266 WiFi Module

📋 Overview

The ESP-12E / ESP-12F modules are based on the ESP8266 WiFi SoC and provide full TCP/IP networking with a powerful 32-bit microcontroller.

They are commonly used for:

  • WiFi-enabled IoT projects

  • Remote serial communication

  • Smart switches & relays

  • Sensors & data logging

  • Home automation

  • Custom embedded products

⚠ These are bare modules and require correct power, boot configuration, and programming connections.

⚠ Important Electrical Notes (READ FIRST)

  • Operating voltage: 3.3 V ONLY

  • Not 5 V tolerant

  • Can draw 300–500 mA peak during WiFi transmission

  • Requires a stable 3.3 V regulator (AMS1117 or better)

❌ Do NOT power directly from Arduino 3.3 V pin
✔ Use a dedicated 3.3 V supply

🔌 Minimum Required Connections

Power

Pin Connect To
VCC 3.3 V
GND GND

Boot Configuration (MANDATORY)

Pin State Notes
EN / CH_PD HIGH Enable chip
GPIO0 HIGH (normal run) / LOW (flash) Boot mode
GPIO2 HIGH Required at boot
GPIO15 LOW Required at boot

Incorrect boot wiring = module will not start.

🔌 Programming (UART)

ESP-12 Pin USB-TTL Adapter
TXD RX
RXD TX
GND GND

⚠ Use 3.3 V TTL adapter only (CP2102 / CH340 with 3.3 V logic).

🔄 Boot Modes Explained (Very Important)

🔹 Normal Operation

GPIO0 = HIGH
GPIO2 = HIGH
GPIO15 = LOW

🔹 Flash / Upload Mode

GPIO0 = LOW
GPIO2 = HIGH
GPIO15 = LOW

➡ After uploading code, set GPIO0 back to HIGH and reset.

📦 Arduino IDE Setup

  1. Open Arduino IDE

  2. Go to File → Preferences

  3. Add this URL to Additional Boards Manager URLs:

http://arduino.esp8266.com/stable/package_esp8266com_index.json

  1. Open Boards Manager

  2. Install ESP8266 by ESP8266 Community

  3. Select board: Generic ESP8266 Module

  4. Settings:

    • Flash Mode: DIO

    • Flash Size: 4M (ESP-12E/F)

    • Baud Rate: 115200

🧪 1️⃣ Arduino Example – Blink (Basic Test)

#define LED_PIN 2 // GPIO2 (often connected to onboard LED)

void setup() {
pinMode(LED_PIN, OUTPUT);
}

void loop() {
digitalWrite(LED_PIN, LOW); // LED ON (inverted)
delay(500);
digitalWrite(LED_PIN, HIGH); // LED OFF
delay(500);
}

✔ If this works, your wiring and power are correct.

🌐 2️⃣ WiFi Connection Example

#include <ESP8266WiFi.h>

const char* ssid = "YOUR_WIFI";
const char* password = "YOUR_PASSWORD";

void setup() {
Serial.begin(115200);
WiFi.begin(ssid, password);

Serial.print("Connecting");
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}

Serial.println("\nConnected!");
Serial.print("IP Address: ");
Serial.println(WiFi.localIP());
}

void loop() {
}

🔁 3️⃣ Remote Serial (WiFi → UART Bridge)

Simple TCP serial bridge example:

#include <ESP8266WiFi.h>

WiFiServer server(23);

void setup() {
Serial.begin(115200);
WiFi.begin("YOUR_WIFI", "YOUR_PASS");

while (WiFi.status() != WL_CONNECTED) delay(500);

server.begin();
}

void loop() {
WiFiClient client = server.available();
if (client) {
while (client.connected()) {
if (client.available())
Serial.write(client.read());
if (Serial.available())
client.write(Serial.read());
}
}
}

✔ Great for remote debugging and serial control over WiFi.

🧠 Common Problems & Fixes

Issue Cause Fix
No boot Wrong GPIO states Check GPIO0/2/15
Random resets Weak 3.3 V supply Use better regulator
Upload fails GPIO0 not LOW Set flash mode
WiFi drops Noise / power dip Add bulk capacitor

Recommended:
Add 470–1000 µF capacitor close to VCC/GND.

Additional information

Weight 30 g
Dimensions 260 × 160 × 20 mm
ESP Model

12E, 12F

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

You may also like…