Hi everybody I have a quick question about how the Sabertooth and the BotBoard II is set up for the tutorial. When looking at Fig. 1 it shows two switches. Im assuming that one of them is for the Sabertooth, but where does the other switch go to? When I built my motor chassis I decided on two 6.0v batteries and of course used the BATC-01 to connect them together. Now for the tutorial Schematic-Fig.5 shows a battery switch for the Bot Board II but where is that supposed to go if both of my 6.0v batteries are already being used by the Sabertooth? Do I need to place another 6.0v battery in the motor chassis? Is that second switch necessary after the tutorial? I do see the second switch in different example pics of the arm/rover projects.
Thanks.
Just to be sure, I believe you are referring to this tutorial: lynxmotion.com/images/html/build148.htm
There are several ways to wire this up. If you are using the default motors, they run on 12 volts, which on mine I have two 2800mah 6v batteries wired in series to give me the 12v. This is run through one switch and connected up to the saber tooth.
Giving 12v to the BB2 is not usually a good idea as the voltage regulator will have to shed 7volts… And most servos don’t like 12v. So on my 4wd Rover with Arm I have a third 2800mah 6V battery which I run to the BB2, to power it and the arm servos. Alternatively you could add a switching regulator to the 12v output such as: basicmicro.com/Zeus-3A-Switc … _p_26.html to get the 6Vs… This is what I have on my Tri-track… In either of these cases I use a second switch to supply the power to the BB2…
Kurt
Yeah kurte that is the tutorial I am referring to lynxmotion.com/images/html/build148.htm. Just as you, I wired the motors the same way soldering the wiring harness to the battery quick connect cable (BATC-01) in series with two 6v batteries for the Sabertooth. So are you saying that you have three 6v batteries in your motor chassis…two for the Sabertooth (switch 1) and one for the BB2 (switch 2)? If so I’ll try that and order another battery.
Yep, I fit 3 of the batteries in the chassis, which works great. If you order a third battery, you can still play with the rover, by simply hooking up a 9V battery to the VL of the BB2, however this would not work for running the servos for the arm portion…
Kurt
ok…gotcha. Thanks.