Hello, I bought a lynxmotion 4wd1 kit and I would like to control the motors using a output of a circuit whose output is 4 spst relays. I was thinking |I should be able to use some kind of Hbridge and just send 5V through the relays to control the F,B,L,R . For now I dont want to use the pulses etc. just the 4 relays. Will any of the sabretooth controllers do this? Thanks for any help.
Does anyone know what kind of Amp draw the motors that come standard with the 4wd1 kit will have? I couldn’t find it on the specs. Thanks again.
From your description, I could not tell if you purchased this kit with any electronics such as a Microprocessor like the Atom Pro. If you did, it would be relatively easy to interface the 4 SPST 5v inputs to the processor and have it generate signals for any of the sabertooths.
Without the processor, you could probably, you will probably need to wire up some electrical circuit. There are others here that are better at this then I am. But for example if you choose the Sabretooth 2x10 regenerative… lynxmotion.com/Product.aspx?productID=562&CategoryID=10, it can be controlled, by Analog, or RC or two forms of serial communications. Of these I think only the Analog input would be easy to generate a circuit for. But how you would need to figure out how to use your four inputs to generate the two analog values to send to the controller, with 2.5V to be centered (do nothing).
Iam thinking that what I need is a motor controller that can be controlled by logic. either +5v or 0V at one input = forward, +5 or 0V + back, etc. Does that sound right? I got it with no electronics. I am trying to control it through a 802.11 server I made that can turn 4 relays on/off. If I put +5v or 0V through each relay I think it will work.
What you are trying to do is pretty simple. You need to find an H-Bridge with simple motor control inputs. Such as on/off or PWM for speed and high/low for direction. Although functional it will by no means be elegant in it’s operation. Turning motors on and off at full speed will cause jerk like behavior.
