Answers.Body: <p>It depends on what you're doing, but for this purpose the Mindsensors motor multliplexer is the device you are looking for - not the port splitter.</p>
  
  <ul>
  <li>A multiplexer (in this context) allows you to independently control/communicate with multiple devices over a single port, one at a time. A motor multiplexer will also need an external power source because a single EV3/NXT motor port cannot power multiple motors simultaneously.</li>
  <li>The Mindsensors port splitter simply joins the 6 wires from each plug to each other plug. This is generally less useful, because all connected devices simultaneously share the same power and signals. Analog sensors will behave unpredictably, I2C sensors <em>might</em> work (if the device supports reassigning its I2C address, and if you keep under the EV3 port's current limits). Motors will all receive power simultaneously, none of the rotation sensors will work, and you risk burning out the EV3's motor port.</li>
  </ul>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-09-12T04:28:24.620Z
Answers.Text: I'm failing to see where you added any information beyond what was already given in the previous answer.
Answers.UserDisplayName: JohnnyB
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-09-13T20:44:59.920Z
Answers.Text: @JohnnyB Are you saying that to me or the person above
Answers.UserDisplayName: The_Indestructible_Cat
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-09-11T23:59:12.790Z
Answers.LastActivityDate: 2019-09-11T23:59:12.790Z
Answers.UserDisplayName: MindS1
Answers.Body: <p>According to this line from the description, </p>
  
  <blockquote>
    <p>"It also has a pass-through Digital Sensor Port to connect more
    sensors/multiplexers. (On this sensor port, you can daisy-chain more
    multiplexers to connect additional motors.)"</p>
  </blockquote>
  
  <p>...you would only need the multiplexer and a power source like the "6-AA Battery Holder with EV3 Mount; Model: BBX003" they have listed.  </p>
  
  <p>The first part you listed would work in a sense, but doesn't sound as useful.  From the PDF:  </p>
  
  <blockquote>
    <p>"Up to three motors can be attached to SPLIT-Nx-v2. Turning motor port
    ON through the NXT program will turn all the attached motors ON at
    once. This is useful if you need to run all motors at once, however
    independent control of each attached motor is not possible and encoder
    values of the motors can not be used. i.e. rotation control feature of
    motor blocks can not be used. Also note that the power supplied to the
    motors will be limited by the power coming from the NXT brick."</p>
  </blockquote>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-09-08T22:17:09.557Z
Answers.LastActivityDate: 2019-09-09T00:03:30.940Z
Answers.LastEditDate: 2019-09-09T00:03:30.940Z
Answers.UserDisplayName: JohnnyB
Body: <p>I have searched all over the internet for EV3 port splitters for motors. I have got 4 large motors and 2 medium motors and I do not have enough motor ports for them all. I can usually only find sensor port splitters which is not what I am looking for. I am looking for a MOTOR one. I have found one but I am not 100% sure if it is what I am looking for or not. Would anybody out there be able to tell me if I would be able to use this 
  <a href="http://www.mindsensors.com/ev3-and-nxt/52-port-splitter-for-nxt-digital-sensors?search_query=motor+splitter&amp;results=1" rel="nofollow noreferrer">port splitter for NXT Digital Sensors</a>?  </p>
  
  <p>I am also don't want to buy a 
  <a href="http://www.mindsensors.com/ev3-and-nxt/21-multiplexer-for-nxtev3-motors?search_query=motor&amp;results=37" rel="nofollow noreferrer">Multiplexer for NXT/EV3 Motors</a> because it is too expensive (and I need 2 of them).</p>
  
  <p>If the one I mentioned above which might be a sensor one is not right can somebody out there give me a suggestion on a cheap and efficient port splitter for Lego EV3 motors?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-09-08T22:36:02.510Z
Comments.Text: Your question is a little unclear.  It sounds like you figured out what you needed but don't want to spend that much money?  Can you please clarify what exactly it is you're asking?  What sort of functionality are you looking for with the motors?
Comments.UserDisplayName: JohnnyB
Tags: <ev3><motor><ev3dev>
Title: Port Splitter for EV3 motors
UserDisplayName: The_Indestructible_Cat
ThreadText: # Port Splitter for EV3 motors
  
  (Asked by: username_0 on 2019-09-06)
  
  I have searched all over the internet for EV3 port splitters for motors. I have got 4 large motors and 2 medium motors and I do not have enough motor ports for them all. I can usually only find sensor port splitters which is not what I am looking for. I am looking for a MOTOR one. I have found one but I am not 100% sure if it is what I am looking for or not. Would anybody out there be able to tell me if I would be able to use this
  [port splitter for NXT Digital Sensors](http://www.mindsensors.com/ev3-and-nxt/52-port-splitter-for-nxt-digital-sensors?search_query=motor+splitter&results=1)?
  
  I am also don't want to buy a
  [Multiplexer for NXT/EV3 Motors](http://www.mindsensors.com/ev3-and-nxt/21-multiplexer-for-nxtev3-motors?search_query=motor&results=37) because it is too expensive (and I need 2 of them).
  
  If the one I mentioned above which might be a sensor one is not right can somebody out there give me a suggestion on a cheap and efficient port splitter for Lego EV3 motors?
  
  **Tags:** ev3, motor, ev3dev
  > **Comments:**
  > **username_1**: Your question is a little unclear.  It sounds like you figured out what you needed but don't want to spend that much money?  Can you please clarify what exactly it is you're asking?  What sort of functionality are you looking for with the motors?  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2019-09-11. Score: 1
  
  It depends on what you're doing, but for this purpose the Mindsensors motor multliplexer is the device you are looking for - not the port splitter.
  
  * A multiplexer (in this context) allows you to independently control/communicate with multiple devices over a single port, one at a time. A motor multiplexer will also need an external power source because a single EV3/NXT motor port cannot power multiple motors simultaneously.
  * The Mindsensors port splitter simply joins the 6 wires from each plug to each other plug. This is generally less useful, because all connected devices simultaneously share the same power and signals. Analog sensors will behave unpredictably, I2C sensors *might* work (if the device supports reassigning its I2C address, and if you keep under the EV3 port's current limits). Motors will all receive power simultaneously, none of the rotation sensors will work, and you risk burning out the EV3's motor port.
  
  > **Comments:**
  > **username_1**: I'm failing to see where you added any information beyond what was already given in the previous answer.  
  > **username_0**: @JohnnyB Are you saying that to me or the person above  
  
  ---
  
  ### Answer by username_1 on 2019-09-08. Score: 0
  
  According to this line from the description,
  
  > "It also has a pass-through Digital Sensor Port to connect more
  > sensors/multiplexers. (On this sensor port, you can daisy-chain more
  > multiplexers to connect additional motors.)"
  
  ...you would only need the multiplexer and a power source like the "6-AA Battery Holder with EV3 Mount; Model: BBX003" they have listed.
  
  The first part you listed would work in a sense, but doesn't sound as useful. From the PDF:
  
  > "Up to three motors can be attached to SPLIT-Nx-v2. Turning motor port
  > ON through the NXT program will turn all the attached motors ON at
  > once. This is useful if you need to run all motors at once, however
  > independent control of each attached motor is not possible and encoder
  > values of the motors can not be used. i.e. rotation control feature of
  > motor blocks can not be used. Also note that the power supplied to the
  > motors will be limited by the power coming from the NXT brick."
  
  
  ---
  
  