Crazyflie simulator does not work

When I use the Crazyflie simulator, I find that the drone cannot take off. After starting the simulation, the drone has no response, and the propellers do not spin. I am not sure if this web-based simulator needs to be connected to a physical Crazyflie. Can the simulation be done through the simulator if the physical drone is not present?

Hi Desmond,

Can you confirm what platform and browser you are using? The Crazyflie simulator does not require a physical drone to be connected. We recommend using the latest version of Google Chrome browser.