ESP-01s

The ESP-01S WiFi Module is a compact and powerful wireless module based on the ESP8266 chip, designed to add WiFi capability to your electronics projects. It allows microcontrollers like Arduino to connect to the internet, enabling IoT (Internet of Things) applications with ease.

This upgraded ESP-01S version features improved stability, better performance, and enhanced reset circuitry compared to the older ESP-01 model. It supports both Access Point (AP) and Station (STA) modes, giving you flexibility in how your device connects to networks.

With built-in TCP/IP protocol stack, the ESP-01S can either function as a standalone microcontroller or as a WiFi adapter for other systems. It’s perfect for building smart home devices, remote monitoring systems, and wireless control applications.

Specifications
Chipset: ESP8266EX
Operating Voltage: 3.3V (⚠️ Not 5V tolerant)
WiFi Standard: 802.11 b/g/n
Frequency: 2.4GHz
Flash Memory: 1MB (ESP-01S)
Interface: UART (TX/RX)
GPIO Pins: 2 (GPIO0, GPIO2)
Modes: Station (STA), Access Point (AP), Both