ESP-Drone is an open source drone solution based on Espressif ESP32/ESP32-S2/ESP32-S3 Wi-Fi chip, which can be controlled over a Wi-Fi network using a mobile APP or gamepad. ESP-Drone supports multiple flight modes, including Stabilize mode, Height-hold mode, and Position-hold mode. With simple hardware, clear and extensible code architecture, ESP-Drone can be used in STEAM education and other fields. The main code is ported from Crazyflie open source project with GPL3.0 protocol. We had upload the firmware for ESP32-S2-Drone V1.2, you no need to upload firmware, just install the motor and propeller correctly, then you can control the ESP32-S2-Drone with your mobile phone. Hardware:ESP32-S2-Drone V1.2 Stabilize mode: keep the drone stable to achieve smooth flight. Height-hold mode: control thrust output to keep the drone flying at a fixed height. Position-hold mode: keep the drone flying at a fixed position. PC debugging: use cfclient for static/dynamic debugging. Controlled by APP: easily controlled over Wi-Fi by your mobile APP. Controlled by gamepad: easily controlled via the gamepad by cfclient. Colour:Black Material:Composite Materials Package Contents: 3 x Rc Quadcopter Set (Without Lithium Battery) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.