How to power and connect HC-SR04 sonar sensors about robot HOT 6 CLOSED

You can use the GPIO 5v pin.

from robot.

I am beginner.. please don't mind, can I connect 3 sensors to one power source as I am already using it to connect/run my robot motors !? 5v on board out!

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Yeah, that should work. Did you try it?

from robot.

didn't tried it yet as I was facing RaspberryPI freeze issue while running using sensor. it's wired though and finally last night was able to get response from sensor. I will connect all of them to breadboard and will see how it works. Will keep you posted.

just asking - you can see my repo and correct me if you know why freeze issue is happening :)
https://github.com/nagen1/robot-4wd

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Hi Lukas,
I tried connecting 3 sensors to one RPi 5v and ground using breadboard it works awesome... :)
I typically took your details in Oreilly article and improved a little bit. my entire hardware is now running on one battery pack 10000Amh (the one you suggested) and everything works great.

here is how I connected all of them.

• 3 sensors connected to breadboard, 5v powers all sensors and ground
• motors power connected using USB out from battery pack (got ride of 6AA batteries pack)
• RPi gets power from same USB battery pack

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That's great! Send me a picture :).

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