Resources on feasibility: multiple actuators connected

Projects General Guidance
1

Hello,

I would like to connect the following to UNO :

  • 5x vibration motors, such as this one
  • 5x piezo mics on the analog in

How can I understand if the demands (in V, i guess) of the devices will be too high for the Arduino to handle? Will this burn the arduino? :grinning:

Idea is to convert the piezo in into vibration, 5 channels independently; or to drive the 5 motors via software, independently. So there may be some instants in which the five motors will be running at the same time.

Sorry, but total noob re: arduino and electricity.
Thanks a lot,

touchmysound

2

You can certainly do what you want just DON'T connect those motors (buzzers) directly to the Arduino, as the buzzers require 75mA and the Arduino can only handle 40mA absolute top whack per pin, and even then only 200mA maximum per chip.

Drive the motors using a simple transistor (or MOSFET, but seems a bit of expensive overkill for these).

3

or a transistor array IC like http://www.sycelectronica.com.ar/semiconductores/ULN2802-3-4.pdf

4

Tx guys I actually made it. With 10 transistors I'm driving 10 buzzers on 2 UNOs. I replicated this 10 times: http://learningaboutelectronics.com/images/Vibration-motor-circuit-with-arduino.png