ESP8266 ESP-01 (ORIGINAL)

The ESP8266 WiFi Module ESP-01 is a low-cost and highly efficient wireless communication module developed for Internet of Things (IoT), smart devices, and embedded networking applications. Powered by the popular ESP8266 WiFi chipset , the module integrates a complete TCP/IP protocol stack and wireless networking capability into a compact form factor. The ESP-01 supports IEEE 802.11 b/g/n WiFi standards and provides multiple operating modes including Access Point (AP) , Station (STA) , and simultaneous AP+STA mode . It also supports WiFi Direct (P2P) and Soft-AP functionality, enabling flexible wireless networking solutions. The module can be controlled using simple and efficient AT commands , making it easy to interface with Arduino, STM32, AVR, PIC, Raspberry Pi, and other microcontrollers through serial UART communication. Its compact size, low power requirements, and built-in networking features make the ESP-01 ideal for smart home systems, wireless sensor nodes, IoT automation, remote monitoring, and embedded wireless communication projects. For stable operation, the module requires a clean and stable power supply with correct GPIO startup configuration. Specifications Product Type: WiFi Module Model: ESP8266 ESP-01 Wireless Standard: IEEE 802.11 b/g/n Networking Protocol: Built-in TCP/IP Stack Communication Interface: UART Serial Supported Modes: AP, STA, AP+STA WiFi Functions: Soft-AP, WiFi Direct (P2P) Control Method: AT Commands Power Supply Requirement: Stable DC Power Supply GPIO Configuration: GPIO0, GPIO2 Pull-Up / GPIO15 Pull-Down CH_PD Pin: Must be Pulled High Application Type: IoT and Wireless Communication Applications Internet of Things (IoT) projects Smart home automation systems Wireless sensor networks Remote monitoring systems WiFi-enabled embedded devices Arduino and microcontroller networking Robotics and automation systems Mobile app-controlled electronics Wireless data transmission projects DIY electronics and prototyping