ESP 01 ESP8266 Serial Wifi Transceiver Module

ESP 01 ESP8266 Serial Wifi Transceiver Module

The ESP-01 ESP8266 Wi-Fi Module is a low-cost, compact, and powerful wireless transceiver designed to add Wi-Fi connectivity to microcontroller-based projects. Powered by the ESP8266EX chip, this module supports 802.11 b/g/n standards and provides a full TCP/IP stack, allowing microcontrollers to connect directly to Wi-Fi networks and the Internet.

It can be easily interfaced with controllers like Arduino, Raspberry Pi, STM32, or PIC using simple UART serial communication, making it an excellent choice for IoT (Internet of Things) and wireless data transmission applications. With built-in AT command firmware, the module can be configured and controlled using standard serial commands, eliminating complex setup requirements.

Compact yet powerful, the ESP-01 is ideal for home automation, sensor networks, smart devices, and IoT-based applications where stable Wi-Fi connectivity is needed.

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Features:

• Wi-Fi Standard: IEEE 802.11 b/g/n (2.4GHz)
• Chipset: ESP8266EX (Tensilica 32-bit processor)
• Operating Voltage: 3.0V – 3.6V (recommended 3.3V)
• Interface: UART (TX/RX) serial communication
• Flash Memory: 512KB / 1MB (depending on version)
• Baud Rate: 9600 – 115200 bps (default: 115200)
• Antenna: On-board PCB antenna
• Modes of Operation:
• Station (STA) – Connect to an existing Wi-Fi network
• Access Point (AP) – Create your own Wi-Fi network
• STA + AP – Combined mode for flexible IoT networking
• Protocol Support: TCP/IP, UDP, HTTP, DHCP, DNS
• Compact Size: 24.8mm x 14.3mm x 2.6mm
• Low Power Consumption: Suitable for battery-powered IoT devices

Applications:

• IoT Projects: Enable wireless communication between sensors and microcontrollers
• Home Automation: Control lights, fans, or appliances via Wi-Fi
• Smart Devices: Integrate Wi-Fi into switches, thermostats, and other electronics
• Wireless Data Transmission: Send and receive sensor data over local networks or the cloud
• Educational & DIY Projects: Perfect for learning about Wi-Fi communication and IoT systems
• Remote Monitoring: Build systems for temperature, humidity, or security monitoring