What’s the cheapest quadcopter you can build? As [Circuit Digest] demonstrates with their variant of the ESP-Drone project by Espressif, you only need a minimum of parts: an ESP32 MCU ...

The ball drone seems well suited to an indoor environment, but we’re not sure if it has any real advantages over a quadcopter with ducted propellers. Servos are cheaper than motors and ESCs ...

Engineers at the University of Manchester have flown what they claim may be the biggest unmanned quadcopter drone yet built. The university says it is unaware of a bigger unmanned quadcopter ...

But it turns out that small, cheap quadcopter drones are in many ways more useful on some parts of the battlefield—like in tunnels. About a decade ago, Israel’s National Security Council had ...