Hello
I’ve already recieved my Viper 2wd sumo robot, but i’m depressed to get wrong parts from lynxmotion !
The kit should contain “Scorpion Dual RC H-Bridge Motor Controller” but i got instead the sabertooth 2x12 RC
I didnt find any manuals to know hot to connect the BAT Board with this motor controller …
Please would you provid me with FULL guide to connect and function the Viper robot using BOT Board II with the sabertooth RC 2x12, and how can I wire 'em all.
Thank you
Sami Alzein, MSc. robotic field, Jubilee university
The scorpion was discontinued a while ago - you will find the Sabertooth is a better alternative. You can base the connections off of the 4WD + Sabertooth setup (R/C, autonomous etc):
lynxmotion.com/images/html/build123.htm
lynxmotion.com/images/html/build134.htm
lynxmotion.com/driver.aspx?Topic=assem05
Thank you for your reply however my Viper Sumo Combo Kit for Basic Atom is 2WD and I need a manual for the two wheel drive not 4WD. please provide me with the required helpful manual.
I would also like to mention that this link suggests to connect sabertooth and bot board II to 6 and 12 VDC battery. So how shall we connect them?!
The only difference is instead of connecting four motors (two motors on the left side to one channel and two motors on the right side to the other channel), you only connect the left motor to one channel and the right motor to the other.
For the battery connection, see schematic 5:
lynxmotion.com/images/assemb … d1sch1.gif
Thank you a lot for your reply. But, the schematic 5 is not clear for example the sabertooth as shown in the figure should be connected to the 12 VDC battery whereas the bot board should be connected to my 7.2 VDC battery and as mentioned we should connect 9 VDC battery for the atom 28 , please explain and clarify how should we connect all these VDC Batteries properly.
Also, I would like to mention that the sabertooth couldn’t be fit in the viper place which is used to hold the “Scorpion Dual RC H-Bridge Motor Controller” as it’s too small to be placed there. So will you please provide me with any suggestions that I can use to place both boards and sabertooth properly that it can perfect my robot.
Thank you,
You only need to read the connection as “motor battery”. It’s whatever voltage you will feed to the motors - it can be 12V, 7.2V, 6V etc.
There is no specific area where the Sabertooth or the scorpion need to be placed - just place it in an accessible area inside the robot using double-sided tape. The Scorpion was placed where it was in step 1 simply because it looked good.
We do apologize that the assembly guides do not reflect the current package contents and plan to update them as soon as we can.
Thanks again for your kind following up.
Still one thing
the Holes in the scoop are not symetric so we could not place the single line detector any more
Any help?
Also another thing for confirmimg : Should I connect th 7.2 volt battery for both sabertooth & Bot board ???
Can you include an image? The mounting hole (as opposed to the slot) should be in the same position on both sides.
You should be able to split the 7.2V battery between the Sabertooth and the BotBoard.
Any images to show how to split the 7.2 VDC??
I need to ensure what Voltage value i should provide the Bot Board & saber tooth
For the scoop holes … it has been fixed any ready for now thank you!
It’s easiest to connect the battery to the Sabertooth and also run another red and black wire from the Sabertooth to the Bot Board.
Ah so it’s that easy!
I thought i should supply splitted voltage to the Bot Board …
So I 'll do the following:
- connect the battery 7.2 volt to the sabertooth 9Vdc
- pick another wire in parallel mode to the Bot Board
- Supply a 9Vdc battery to the microcontroller
Right?
If you’re going to use a 9V battery, then you don’t need to split the 7.2V battery. Just connect it to the motor controller, and connect the 9V battery to the logic supply of the Bot Board - this is even easier.
Ahh okay … In this case no need to connect the battery to the VS port … Only VL with 9 v and the battery will be direct connected to the motor controller
Ok … for now i’m trying to program the BasicAtom pro 28 to control the gearhead motors, but in the manual no reference for how to control them … any help please?
This should have everything you need for autonomous control:
lynxmotion.com/images/html/build135.htm
PS2 wireless control:
lynxmotion.com/images/html/build134.htm
Note that you should be looking at the 4WD rover code since it has samples of the Bot Board + Sabertooth:
lynxmotion.com/driver.aspx?Topic=assem05
