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ESP8266 Serial WIFI Wireless Transceiver Module ESP-07 Send Receive LWIP AP Plus STA

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Component Name

ESP8266 Serial WIFI Wireless Transceiver Module ESP-07 Send Receive LWIP AP Plus STA

Overview

The ESP8266 Serial WIFI Wireless Transceiver Module ESP-07 is a low-cost, low-power system on a chip (SoC) with integrated Wi-Fi and microcontroller capabilities. This module is designed for IoT applications, providing a reliable and efficient way to connect devices to the internet.

Functionality

  • Access Point (AP) Mode: The module acts as a Wi-Fi access point, allowing other devices to connect to it.
  • Station (STA) Mode: The module connects to an existing Wi-Fi network as a client.
The ESP8266 Module ESP-07 is a Wi-Fi transceiver module that allows devices to send and receive data wirelessly over the internet. It can operate in two modes

The module can also be configured to operate in both AP and STA modes simultaneously.

Key Features

  • Wi-Fi Capability: The module supports 802.11 b/g/n Wi-Fi protocols, with a frequency range of 2.4 GHz.
  • Microcontroller: The module is based on the ESP8266 microcontroller, which is a 32-bit processor with a clock speed of up to 160 MHz.
  • LWIP (Lightweight IP): The module uses the LWIP stack, which is a lightweight implementation of the TCP/IP protocol suite.
  • Serial Interface: The module communicates with external devices using a serial interface (UART, SPI, or I2C).
  • Low Power Consumption: The module has low power consumption, making it suitable for battery-powered devices.
  • Small Form Factor: The module has a compact size, making it suitable for use in small devices and IoT applications.
  • Firmware Upgradable: The module's firmware can be upgraded using a serial interface or wirelessly.
  • Security: The module supports WPA/WPA2 encryption and SSL/TLS encryption for secure data transmission.

Operating Frequency

2.4 GHz

Wireless Standard

IEEE 802.11 b/g/n

Data Transfer Rate

Up to 150 Mbps

Microcontroller

ESP8266, 32-bit

Clock Speed

Up to 160 MHz

Memory

4 MB Flash, 96 KB RAM

Interface

UART, SPI, I2C

Power Consumption

< 200 mA (transmitting), < 10 mA (receiving)

Operating Temperature

-20C to 70C

Storage Temperature

-40C to 125C

Applications

The ESP8266 Module ESP-07 is suitable for a wide range of IoT applications, including

Smart Home Automation

Wearable Devices

Industrial Automation

Robotics

Wireless Sensors

Internet of Things (IoT) Devices

Certifications

The module is certified by regulatory bodies such as FCC, CE, and RoHS, ensuring compliance with safety and electromagnetic compatibility standards.

Pin Configuration

  • ESP8266 Serial WIFI Wireless Transceiver Module ESP-07
  • The ESP8266 Serial WIFI Wireless Transceiver Module ESP-07 is a popular IoT component that provides Wi-Fi connectivity to microcontrollers and other devices. It's a highly integrated module that combines a Wi-Fi transceiver, a microcontroller, and a TCP/IP stack, making it an ideal choice for IoT applications. Here's a detailed explanation of the pins and how to connect them:
  • Pin Description:
  • 1. VCC (3.3V):
  • Function: Power supply pin
  • Description: Connect to a 3.3V power source. The ESP-07 module requires a stable 3.3V power supply to operate.
  • Note: Ensure the power supply can provide sufficient current to power the module.
  • 2. GND:
  • Function: Ground pin
  • Description: Connect to the ground of your circuit. This pin provides a reference voltage for the module.
  • 3. RX ( Receive):
  • Function: Serial data receive pin
  • Description: Connect to the transmit pin (TX) of your microcontroller or serial device. This pin receives serial data from the microcontroller.
  • 4. TX (Transmit):
  • Function: Serial data transmit pin
  • Description: Connect to the receive pin (RX) of your microcontroller or serial device. This pin transmits serial data from the ESP-07 module.
  • 5. GPIO0:
  • Function: General-purpose input/output pin
  • Description: Can be used as an input or output pin for various applications, such as controlling LEDs, relays, or reading sensor data.
  • 6. GPIO2:
  • Function: General-purpose input/output pin
  • Description: Can be used as an input or output pin for various applications, such as controlling LEDs, relays, or reading sensor data.
  • 7. RESET:
  • Function: Reset pin
  • Description: Connect to a pull-up resistor (10k) and then to VCC. This pin is used to reset the ESP-07 module.
  • 8. CH_PD (Chip Power-Down):
  • Function: Chip power-down pin
  • Description: Connect to VCC through a 10k pull-up resistor. This pin is used to enable or disable the ESP-07 module.
  • 9. ANT (Antenna):
  • Function: Antenna pin
  • Description: Connect to an external antenna (optional) to improve Wi-Fi signal strength and range.
  • Connection Structure:
  • Here's a general connection structure for the ESP8266 Serial WIFI Wireless Transceiver Module ESP-07:
  • Connect VCC to a 3.3V power source.
  • Connect GND to the ground of your circuit.
  • Connect RX to the TX pin of your microcontroller or serial device.
  • Connect TX to the RX pin of your microcontroller or serial device.
  • Connect GPIO0 and GPIO2 to your desired peripherals (e.g., LEDs, relays, sensors).
  • Connect RESET to a 10k pull-up resistor and then to VCC.
  • Connect CH_PD to VCC through a 10k pull-up resistor.
  • Connect ANT to an external antenna (optional).
  • Note:
  • Ensure the power supply can provide sufficient current to power the module.
  • Use a logic level converter if your microcontroller operates at a voltage other than 3.3V.
  • Refer to the datasheet for more detailed information on pin descriptions, electrical characteristics, and application guidelines.
  • The ESP-07 module is a powerful and versatile component that can be used in a wide range of IoT applications. With its built-in Wi-Fi capabilities and serial communication interface, it's an ideal choice for wireless IoT projects.

Code Examples

ESP8266 Serial WIFI Wireless Transceiver Module ESP-07 Send Receive LWIP AP Plus STA
Overview
The ESP8266 Serial WIFI Wireless Transceiver Module ESP-07 is a low-cost, low-power system-on-a-chip (SoC) with integrated Wi-Fi and microcontroller capabilities. This module is designed to provide Wi-Fi connectivity to microcontroller-based projects, enabling IoT applications such as wireless sensor networks, smart home devices, and industrial automation.
Features
Integrated 802.11 b/g/n Wi-Fi transceiver
 Microcontroller with 32-bit LX6 processor
 4MB of flash memory
 Support for both Access Point (AP) and Station (STA) modes
 Serial communication interface (UART, SPI, I2C, I2S, etc.)
 Low power consumption (<200mA)
Code Examples
### Example 1: Connecting to a Wi-Fi Network (STA Mode)
This example demonstrates how to connect the ESP8266 module to a Wi-Fi network in Station (STA) mode. The module will connect to a router with the specified SSID and password.
```c
#include <WiFi.h>
const char ssid = "your_wifi_ssid";
const char password = "your_wifi_password";
void setup() {
  Serial.begin(115200);
// Connect to Wi-Fi network
  WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
Serial.println("Connected to WiFi");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}
void loop() {
  // Your code here
}
```
### Example 2: Creating a Wi-Fi Access Point (AP Mode)
This example demonstrates how to configure the ESP8266 module as a Wi-Fi Access Point (AP). The module will create a Wi-Fi network with the specified SSID and password.
```c
#include <WiFi.h>
const char apSsid = "ESP8266_AP";
const char apPassword = "12345678";
void setup() {
  Serial.begin(115200);
// Create Wi-Fi Access Point
  WiFi.softAP(apSsid, apPassword);
Serial.println("ESP8266 AP started");
  Serial.println("IP address: 192.168.4.1");
}
void loop() {
  // Your code here
}
```
### Example 3: Sending and Receiving Data over Wi-Fi (LWIP)
This example demonstrates how to send and receive data over Wi-Fi using the Lightweight IP (LWIP) stack. The example assumes that the module is connected to a Wi-Fi network and uses a simple TCP client to send a message to a server.
```c
#include <WiFi.h>
#include <lwip/netdb.h>
#include <lwip/dns.h>
const char ssid = "your_wifi_ssid";
const char password = "your_wifi_password";
const char serverIP = "192.168.1.100";
const int serverPort = 8080;
WiFiClient client;
void setup() {
  Serial.begin(115200);
// Connect to Wi-Fi network
  WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
Serial.println("Connected to WiFi");
}
void loop() {
  if (client.connect(serverIP, serverPort)) {
    Serial.println("Connected to server");
// Send data to server
    client.println("Hello, server!");
    client.println();
// Receive data from server
    while (client.available()) {
      char c = client.read();
      Serial.print(c);
    }
Serial.println();
    client.stop();
  } else {
    Serial.println("Connection failed");
  }
delay(1000);
}
```
Note: These examples are meant to demonstrate the basic functionality of the ESP8266 module and may require modification to fit specific use cases. Additionally, ensure that you have the necessary libraries and dependencies installed to compile and upload the code to the module.