ESP-01S

The ESP-01S ESP8266 WiFi Module is a compact and versatile transceiver module that provides microcontrollers with access to Wi-Fi networks. Here’s a concise description:

The ESP-01S is a self-contained System-on-a-Chip (SOC) with an integrated TCP/IP protocol stack. It can operate in either of the following modes:

1. Application Host Mode:
   • In this mode, the ESP-01S can host its own application.
   • It acts as a small computer, allowing you to manipulate inputs and outputs without an external microcontroller.
   • Ideal for IoT projects and standalone Wi-Fi applications.
2. Wi-Fi Offloading Mode:
   • The ESP-01S offloads all Wi-Fi networking functions from another application processor.
   • It provides Wi-Fi connectivity to any microcontroller, making it easy to connect to your Arduino or other development boards.

Key features:

• 802.11 b/g/n wireless protocol support.
• STA/AP/STA+AP working modes.
• Serial interface for easy connection to microcontrollers.