The ESP-01S, building upon the ESP-01, features an optimized PCB antenna, representing a small step in upgrades but a giant leap in user experience.
Product Basic Parameters:
Operating Voltage: DC3.0-3.6V (3.3V recommended)
SPI Flash: 1MB
Onboard PCB Antenna Gain: 3DBi
Product Dimension Diagram:
Product Pin Definitions and Functions:
Product Schematic Diagram:
