Building Smart Drones with ESP8266 and Arduino

My drone tries to flip or flip when I turn it on

This problem may occur for several reasons. Check if you calibrated your ESCs. Are your propellers balanced? Have you configured the radio properly? Are your ArduPilot's sensors working properly? Have you checked all the wire connection? Have you calibrated the drone frame? Have you added the wrong propellers to the wrong motors (for example, clockwise propellers to anticlockwise motors)? I hope you can solve the problem now.