Multiple conponents on one board

Projects General Guidance
1

Hello,

I’m doing a 3d model of a smart home and I’m planning on integrating multiple sensor and motors with a nodemcu. I cureently have a dht11, photoresistor, ultrasonic sensor and a servo. I also want to add a 3v small dc motor though when I connect it to the cirtcuit the other components seem to not like it very much. The servo changed it’s position randomly and the others seem to show different values than usual. I’m powering the board via usb and the components via a 3.3v-5v power supply. What might be the issue? Is the power supply not powerfull enough? If that is the case what should I use?

Thank you!

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3

My fist inclination is to blame lack of power, but that is a guess having not seen a schematic and the full specifications of components and power supply(s).

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