For ultrasonic sensor Connection pin_ Echo-2 Trigger-3 Vcc-5v Gnd-Gnd ______________________________________________ All negative leg of led to Gnd of arduino And positive leg of leds are pin number 4 to 11 of arduino respectively
Connection PIN to arduino uno Led outputs pin 2 to 12 pin Ir receiver out pin:11 Connect all negative leds to ground Connect Ir receiver ground to ground and vcc to 5 volt
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