|Arduino Uno| This is my OBSTACLE AVOIDING ROBOT (ARDUINO) project and its not working on 9V Battery int trig=7 , echo=2 , sag_i=8 , sag_g=9 , sol_i=11 , sol_g=12 ; int sure , mesafe ; void setup() { pinMode(trig,OUTPUT); pinMode(echo,INPUT); pinMode(sag_i,OUTPUT); pinMode(sag_g,OUTPUT);…

Arduino UNO only works with usb cable

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