Asked — Edited

2.5 Amp Motor Controller

hi i have a h-bridge question

fist i did all the wiring https://synthiam.com/Tutorials/Hardware.aspx?id=25 here i installed h-bridge like in the tutorial

  1. Connect L298 VCC to your battery supply positive
  2. Connect L298 GND to your battery supply negative
  3. Connect L298 +5 to a +5 pin on the EZ-B (in the diagram I used +5 from Pin D0)
  4. Connect L298 IN1 to EZ-B Pin D1
  5. Connect L298 IN2 to EZ-B Pin D2
  6. Connect L298 IN3 to EZ-B Pin D3
  7. Connect L298 IN4 to EZ-B Pin D4
  8. Connect L298 OUT1 to Motor 1
  9. Connect L298 OUT2 to Motor 2

then i opened ARC HBridge Movement Panel and i says

left trigger A left trigger B right trigger A left trigger B

since i did everything it says shall i enter the ports like this? left trigger A D1 left trigger B D2 right trigger A D3 left trigger B D4

thank you


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United Kingdom
#1  

Yes. If you find things are reversed just revisit the config and adjust to suit.

#2  

i have one more question about h-bridges i will control a 4wd rover with these i will use 2 to control to control 4 motors but i am not sure which motors to control which h-bridge what i am trying to say is there is 2 motors on the right and 2 motors on the left i will install 2 left motors to 1 h-bridge 2 right motors to another h-bridge shall install them like this or should i install 2 front motors to 1 h-bridge and 2 back motors to 1 h-bridge hope you understood what i am saying thanks

United Kingdom
#3  

1 controller will control 2 motors. If you want all 4 motors independently controlled you will need 2 controllers.

If the motors would not exceed the rated current of the HBridge you may connect 2 motors per output however both would do the same thing.

#4  

i want to control my 4wd dc rover with 2 h-bridges but i am not sure which motors to connect which h-bridge there will be 2 motors on the front 2 motors on the back i will connect front motors to one h-bridge back motors to another first h-bridge ports will be

left trigger A D1 left trigger B D2 right trigger A D3 left trigger B D4

second h-bridge ports will be

left trigger A D15 left trigger B D16 right trigger A 17 left trigger B D18

problem is ez-robot gives movement controls to only one h-bridge i need a code to move both h-bridges at the same time

or can i use only one h-bridge to control 4 motors i dont want them move independently thanks

United Kingdom
#5  

2 HBridges gets a little more complicated as you can only have one movement panel. There is a topic which is covering this, give the forums a search for "HBridge". I'll see if I can find it when I get more time too.

#6  

or can i use only one h-bridge to control 4 motors i dont want them move independently thanks

United Kingdom
#7  

Put the left hand motors on the one output and the right on the other. Provided they don't exceed the 2.5A you will be fine.

#8  

one more question if i give more power to h-bridge would my motor spinn faster?

United Kingdom
#9  

Short answer, yes. Just check what voltage the motors can take before you throw a lot in to them.

#10  

thanks while we are talking about power i am thinking of powering my ez-b with a 3s 2200mah li-po battery would this burn the ez-b or would it work fine cheers

United Kingdom
#11  

3s is 12.6v fully charged (I think), it's below the EZB maximum input voltage so that should be fine. You may want to put a fan on the regulators though.

#12  

okay i will plug h-bridge to a sepperate battery would that make a problem? thanks rich

United Kingdom
#13  

Join the grounds together so it's a common ground and it'll be fine.

United Kingdom
#15  

Put a link across from one battery to the other and connect the grounds (usually black) together.

#16  

how can i change the speed of the h-bridge using ARC thanks