Features:
Working voltage: 4.5~5.5V (On-board 3.3V LDO Regulator)
Working current: 0-240mA
Interface logic voltage: 3.3V / 5V compatible(On-board level shift circuit)
You could choose:
1 x ESP-01 ESP-01S Adapter Module
1 x ESP-01
1 X ESP-01S
