Using this mini remote control is easy. First, take out the plastic pull - tab from the included battery to activate it. Then, you can use it to control your robot or other projects from across the room. If you want to control a device that expects NEC codes, just press the buttons on the remote, and it will send the appropriate data codes. To decode the button presses, you can use the example CircuitPython and Arduino code we provide along with our IR remote receiver sensor. As for maintenance, keep it in a dry place and avoid dropping it. If the battery runs out, replace it with a new one of the same type.