Interacting with the DJI/Ryze Tello using only the voice. The drone works with Amazon's Alexa voice assistant to respond to voice-prompted commands.

Speak your verbal commands to Amazon Echo to control your drone. First, Alexa Skills Kit parses voice commands, then Node-RED send commands to RPi over MQTT. Finally, node.js RPi will send the specific command to drone over Tello Wifi Network.

This code is based on the Tello SDK documentation. To simplify the vocal interaction, each movement was fixed at 1 meter, the rotation at 90 degrees and the flip only forward.

You can find more details at https://www.hackster.io/econnie323/alexa-voice-controlled-tello-drone-760615