WiFi module 802.11 b / g / n at 2.4 GHz. For communication via the UART (RS232) serial interface - an ideal device for Arduino communication with a computer or other WiFi device. Technical data: - Supports WiFi standard: WiFi 802.11 b, g, n - Can work in AP (Access Point), STA (standalone) and AP + STA modes - supports AT commands - has a built-in antenna. - has two-row leads - goldpin header connectors. - frequency: 2.4 GHz - supply voltage: 3.3 V - working voltage of the pins: 3.3 V - current consumption: 300 mA - supports WPA / WPA2 security - communicates via the UART (RS232) serial interface - has a built-in PCB antenna - dimensions: 24x14mm Using the USB converter, you can program and transfer data directly from the computer https://elecena.pl/product/22605346/esp-01-esp8266ex-wireless-wifi-module 2023-02-22 https://elecena.pl/product/22605346/esp-01-esp8266ex-wireless-wifi-module 2025-10-29