ESP01S ESP8266 Wi-Fi Module

ESP01S ESP8266 Wi-Fi Module Overview

The ESP01S ESP8266 Wi-Fi module brings fast wireless connectivity to Arduino, Raspberry Pi, NodeMCU, and other microcontroller projects. This compact, low-power module turns basic electronics into cloud-connected devices, making it ideal for IoT, automation, remote sensors, and smart home applications.

Why the ESP01S is a Great Choice

• Compact footprint fits into small enclosures and space-constrained projects
• Reliable ESP8266EX chipset delivers stable Wi-Fi 802.11 b/g/n communication
• Simple UART interface and standard AT command support for quick integration
• Flashable firmware for customization and advanced applications

Key Features

• ESP01S form factor (small and easy to mount)
• Powered by the ESP8266EX chip
• Built-in antenna for wireless communication
• Supports AP, STA, and AP+STA modes
• Standard UART (TX/RX) interface for microcontroller connection
• Works with Arduino, NodeMCU, Raspberry Pi, and other controllers
• Ideal for smart home devices, wireless sensors, and automation

Specifications

• Chipset: ESP8266EX
• Wi-Fi Protocol: 802.11 b/g/n
• Voltage: 3.0V to 3.6V
• I/O Pins: GPIO0, GPIO2, TX, RX
• Baud Rate (Default): 115200
• Flash Memory: 1 MB
• Dimensions: Approximately 25mm x 15mm
• Modes: STA, AP, STA+AP
• Firmware: Flashable and customizable

Compatibility and Common Uses

The ESP01S ESP8266 Wi-Fi module is suitable for beginners and experienced makers. Typical projects include:

• ESP01S Arduino projects for wireless control and data logging
• DIY IoT gadgets that send sensor data to cloud services
• Remote control and home automation systems
• Wireless sensors and switches for monitoring and alerts
• Low-power ESP8266 projects running on battery or solar power

Getting Started

1. Power the module with a stable 3.3V supply (3.0V to 3.6V).
2. Connect TX and RX to your microcontroller UART (remember to use 3.3V logic).
3. Use standard AT commands or flash custom firmware for advanced features.
4. Choose AP, STA, or AP+STA mode depending on your network setup.

Why Buy from Colgroad

Colgroad supplies high-quality ESP01S ESP8266 modules across Pakistan. We are trusted by students, makers, and professionals for authentic components, fast shipping, and expert support. Our stock is tested to ensure reliable performance so your projects stay online and stable.

Order Your ESP01S ESP8266 Wi-Fi Module

Get your devices online quickly. Order the ESP01S ESP8266 Wi-Fi module now and start building smart automation, wireless sensors, and IoT projects with confidence.

Note: Images are for illustration purposes only.