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Thank you very much, I will try this method. By the way Im not sure about the variable GPIO to connect sensor +5 -> pin 20 GND -> pin 19 AN -> pin 14 It correct ? because I see the GPIO parameter in crazyflie2.0 firmware source code have only gpio_0 to gpio_15 how did I know which parameter I can us...

Hi every one I am new develop in crazyflie. I try to add proximity sensor to crazyflie 2.0. I follow this tutourial https://cfusting.wordpress.com/2013/07/28/quadcopters-and-spatially-centric-data/ https://cfusting.wordpress.com/2013/07/28/interfacing-the-crazyflie-with-a-proximity-sensor/ I already...