ESP 01S ESP8266 WiFi Module

ESP 01S ESP8266 WiFi Module

The ESP-01S ESP8266 is an enhanced and compact Wi-Fi module designed for IoT and wireless communication applications. It is an upgraded version of the classic ESP-01, featuring improved stability, stronger signal, and better performance.

Equipped with the ESP8266EX microcontroller, it provides full TCP/IP protocol stack support and can be programmed via UART serial communication, making it easy to interface with Arduino, Raspberry Pi, STM32, or other microcontrollers. The ESP-01S is ideal for wireless data transmission, IoT projects, and smart device automation, providing reliable Wi-Fi connectivity in a small form factor.

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Features:

• Chipset: ESP8266EX (32-bit Tensilica LX106 CPU)
• Operating Voltage: 3.0V – 3.6V (recommended 3.3V)
• Flash Memory: 1MB / 512KB (depending on version)
• Wi-Fi Standard: IEEE 802.11 b/g/n (2.4GHz)
• Interface: UART serial communication (TX/RX)
• Antenna: On-board PCB antenna
• GPIO Pins: 2 accessible pins (GPIO0, GPIO2)
• Modes of Operation:
• Station (STA) – Connect to Wi-Fi networks
• Access Point (AP) – Create your own Wi-Fi network
• STA + AP – Dual-mode operation
• Network Protocols: TCP/IP, UDP, HTTP, DHCP, DNS
• Baud Rate: 9600 – 115200 bps (default 115200)
• Low Power Consumption: Sleep modes supported for battery-powered projects
• Module Dimensions: 24mm × 14mm × 3mm

Applications:

• IoT Projects: Remote sensors, smart devices, and cloud connectivity
• Home Automation: Wi-Fi-enabled switches, lighting, and appliances
• Wireless Communication: Data logging, telemetry, and monitoring systems
• DIY & Educational Projects: Ideal for learning IoT and wireless communication
• Embedded Systems: Add Wi-Fi capability to microcontrollers like Arduino, Raspberry Pi, and STM32