AI-Thinker ESP-01S ESP8266 WiFi Module
The AI-Thinker ESP-01S is a compact ESP8266EX-based WiFi module pre-flashed with AT command firmware, providing a 3.3V UART interface for easy integration of Wi-Fi connectivity into microcontroller projects like Arduino and Raspberry Pi.
Features
- Powered by the ESP8266EX SoC with integrated TCP/IP stack for standalone Wi-Fi networking.
- Pre-programmed with AT command firmware for out-of-the-box UART-based Wi-Fi control (AP/STA/AP+STA modes).
- Compact form factor with 1MB flash memory, four primary interface pins (VCC, GND, TXD, RXD), and two usable GPIOs.
- Operates on a 3.0-3.6V supply with a wide -20°C to 85°C temperature range for robust deployment.
- Extremely cost-effective entry point for adding 2.4GHz Wi-Fi (2412-2484 MHz) to IoT sensors and automation devices.
Out of stock
The ESP-01S module from AI-Thinker encapsulates the full capabilities of the ESP8266EX system-on-chip into a minimal-footprint board. It functions as a self-contained SOC with an integrated LWIP TCP/IP stack, capable of hosting an application or offloading all Wi-Fi networking functions from a primary host microcontroller via simple serial AT commands.
Designed for cost-effective IoT integration, its high on-chip integration minimizes external RF circuitry requirements. The module supports advanced features like APSD for VoIP and Bluetooth co-existence interfaces, backed by a self-calibrated RF system that ensures stable operation across varying environmental conditions.
Additional Information
| Weight | 0.03 kg |
|---|---|
| Dimensions | 8 × 5 × 1 cm |















