ESP-01S ESP8266 Serial WiFi Transceiver Module 1MB

The ESP-01S ESP8266 Serial WiFi Transceiver Module is an ultra-compact, industrial-grade wireless solution designed for IoT (Internet of Things) applications. Powered by the highly integrated ESP8266EX SoC, this module features an upgraded design over the classic ESP-01, offering optimized RF performance, a stronger PCB trace antenna, and a larger 1MB (8Mbit) flash memory. It allows any microcontroller to connect to a 2.4GHz WiFi network using simple AT commands via a serial UART interface, making it an essential component for smart automation and wireless data logging.

This low-power module is fully compatible with the Arduino IDE, MicroPython, and NodeMCU firmware, allowing developers to program it directly as a standalone microcontroller. With its standard 2x4-pin header layout, it easily integrates with Arduino, ESP32, Raspberry Pi, and STM32 systems. Whether you are building a smart home appliance, a remote weather station, or a wireless sensor node, the ESP-01S provides a highly reliable and cost-effective wireless link.

Features:

• Upgraded RF Performance: Features an optimized PCB trace antenna design for improved signal strength and stability compared to older ESP-01 modules.
• Expanded Memory: Equipped with 1MB (8Mbit) of SPI flash memory to support larger user programs and OTA (Over-The-Air) firmware updates.
• Versatile Operation Modes: Supports AP (Access Point), STA (Station), and AP+STA coexistence modes.
• Standard AT Command Set: Ready to use out of the box with standard AT commands for quick integration with any host microcontroller.
• Direct Programming Support: Can be programmed directly using the Arduino IDE, eliminating the need for an external microcontroller.
• Low Power Consumption: Features advanced power-saving architectures, including deep sleep mode, making it ideal for battery-powered IoT devices.

Package Includes:

1 x ESP-01S ESP8266 Serial WiFi Transceiver Module