Button Five-Key Analog Module - Analog Pin Input real time clock and microcontrollers that need accurate

and microcontrollers that need accurate timekeeping

if you do have a battery

5 VDC Emitter Voltage Drop 1

On-board Power Indicator - The board has an on-board power indicator LED

You can also compare it with DFRobot Relay Module V3

Button Five-Key Analog Module - Analog Pin Input real time clock and microcontrollers that need accurateInstead of adding five individual buttons that could end up messing your device's interior, why not get this excellent item? This Button Five Key Analog Module allows you to use five buttons with only one output pin. You can use this on your DIY controllers for games, drones, and etc.  Specifications: 5 buttons occupy an analog port, saving resources Analog acquisition, press the different buttons of different voltage output High quality Omron