ESP-WROOM-32 ESP32 ESP32S 2.4GHz WiFi Bluetooth Development Board for Arduino A ESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters, and power management module. The entire solution takes up the least amount of printed circuit board area. This board is used with 2.4 GHz dual-mode Wi-Fi and bluetooth chips by TSMC 40nm low power technology, power and RF properties best, which is safe, reliable, and scalable to a variety of applications.High performance-price ratioSmall volume, easily embeded to other productsStrong function with support LWIP protocol, FreertosSupporting three modes: AP, STA, and AP+STASupporting Lua program, easily to develop Size:51.5mmx28.3mmx15mmPackage included: 1pcs