ESP8266 WiFi Module (ESP-01)
Microcontroller: ESP8266
Operating Voltage: 3.3V
Wi-Fi Standard: 802.11 b/g/n
Flash Memory: 512 KB / 1 MB (depends on variant)
GPIO Pins: 2
Communication: UART (TX/RX)
Features: Compact, low-power Wi-Fi module, easy to interface with microcontrollers
Applications: IoT projects, home automation, wireless sensors, remote control systems, smart devices