Specifications: Serial/UART
baud rate: 115200 bps
Input power: 3.3V
I/O voltage tolerance: 3.6V Max
Flash Memory Size: 512KB
Support 3 modes: AP, STA, AP + STA
WiFi security modes: WPA,
WPA2 Size: 24.8 x 14.3 x 2.54 mm
Package Includes: 1 x ESP-01 Module 1 x CH340 USB-Converter