Devices that can use Wi-Fi technology include personal computers, video-game consoles, smartphones and tablets, digital cameras, smart TVs, digital audio players and modern printers. Wi-Fi compatible devices can connect to the Internet via a WLAN and a wireless access point. Such an access point (or hotspot) has a range of about 20 meters (66 feet) indoors and a greater range outdoors. Hotspot coverage can be as small as a single room with walls that block radio waves, or as large as many square kilometres achieved by using multiple overlapping access points.
WiFi BLE Click Board
The WiFi BLE click is a Click board™ which provides WiFi and BT/BLE connectivity for any embedded application. It features the ESP32-WROOM-32, an integrated wireless connectivity solution. The ESP32-WROOM-32 module itself is based on the ESP32-D0WDQ6 chip, a powerful 32-bit SOIC that runs RTOS featuring LwIP and TLS 1.2 with hardware acceleration. Armed with such a powerful processor, the ESP32-WROOM-32 can achieve data rates of up to 150 Mbps. The ESP32-WROOM-32 can achieve up to 20 dBm of TX power, ensuring a reliable connection and good signal coverage. It offers an UART communication interface allowing it to be operated by using simple AT commands.