How do you approach the control of many DC Motors?

Using Arduino Project Guidance
1

Hello everyone,

very new here. Looking for some basic guidance. I am looking to be able to control over 60 small 6 volt dc motors.. each independently of each other. Not sure what direction i should take in doing this.

Already see a seperate power supply, is there any special arduino boards already built for this kind of thing? is PWM necessary if i don't care about the speed other than on / off?

2

You could use relay boards, similar to this one.

3

If only on and off is required, you could use shift registers, controlled with SPI, connected to MOSFETs (or maybe high current shift registers without MOSFETs) to control the motors. Would require only 3 pins and lower current required for control circuits versus relays.