Hi, So, quistion is, could I add 3 ultrasonic sensors to one pin (for example, 2). And how code should look like to controll these sensors? Thanks for yours' answers.

I wanna to make robot with 3 ultrasonic sensors on 1 pin, because I will add 1 photocell, 3 leds, 2 buttons, motor shield. For motor shield needs about 6 pins, but I have only Arduino Uno.

It sounds like you have plenty of pins free without the need to try doubling up the sensors. The Uno has 14 digital pins and 6 analogue pins that can be used as digital if required.

Arduino has 14 digital inputs/outputs, 6 analog inputs/outputs. Motor shield uses about 6 pins; Photocell uses 1 analog pin; Button usses 1 pin (2 buttons - 2 pins); Led uses 1 pin (3 leds - 3 pins); Ultrasonic sensor 2 pins (1 pin as output, other as input) (3 ultrasonic sensors - 6 pins) So,…

Another quistion: is it possible to use motor shield's pins on LCD, because mycmotor shield uses pins, which needs LCD to use. Please help !! Thx.

The analog pins also work as digital pins.

Thanks for everyone, who answered. And, sorry for my stupid head, how to connect piezo buzzer to Arduyino? Thanks for answer.

It's best to avoid the conflict by choosing shields which don't use clashing pins. There are usually alternatives for each type of shield and you may be able to find a combination that will work together. Alternative, replace one of the shields with a separate board. For example there are various mo…

syvanaLTU: Thanks for everyone, who answered. And, sorry for my stupid head, how to connect piezo buzzer to Arduyino? Thanks for answer. Connect the same as the speaker in this tutorial: http://arduino.cc/en/Tutorial/Tone

3 ultrasonic sensors on one pin

Projects Programming

UKHeliBob July 1, 2014, 7:39am 2

It does not seem likely to be possible.
Why are you considering doing this ?

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3 ultrasonic sensors on one pin

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