Remote control of DC motor

Thread Starter

xxxyyyba

Joined Aug 7, 2012
289
Here is schematic that provides polarity inversion and switch off motor if it reaches one of its two end positions:



SW1 is On-Off-On DPDT switch with the center position Off. SW 2 and SW 3 are limit switches. Motor voltage and amperage are 12V and 2A (max.). Is it possible to control motor remotely, instead of manual control using SW1? If yes, can you provide me schematic? Thanks in advance
 

Thread Starter

xxxyyyba

Joined Aug 7, 2012
289
Wireless, of course :)
I need simplest solution. It's not neccessary to be remote control using RF, it can be using IR.
 

MaxHeadRoom

Joined Jul 18, 2013
19,005
Also a diode rectifier can be placed across each L.S. and then only two conductors out to the motor side.;)
Max.
 

Mr.Meter

Joined Jan 24, 2016
7
Wired - Replace SPDT switch with SPDT relay
Wireless - I would recommend Xbee S1. Cheap and Easy to use assuming you have some electronics backround.
 

MaxHeadRoom

Joined Jul 18, 2013
19,005
Two conductors out to the motor with each FWD & REV N.C. L.S. all in series, wire a rectifier across each N.C. switch which when the switch is opened, it will be forward biased/allow for the opposite direction/polarity.
I can post if still needed.
Max.
 

Wendy

Joined Mar 24, 2008
21,847
A simpler way is a fast power diode backwards across the motor, like you would use on a relay.
 
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