Hi
Apologies first of all if this is posted in wrong place, couldn’t really see a more relevant section
I am in the process of planning and building a robot, the controller card that I really like the idea of (mainly due to reviews and the fact it is designed to be programmed using visual studio or Microsoft Robotics Studio) is the Serializer WL from robotics connection
Originally I was going to get their chassis too (traxster), but have now found the 4wd1 base and like it and the idea of the add on decks etc, and as I want to put my Asus EEE onboard at some point is an ideal size
My question is can I use this chassis and its 4 motors with a serializer WL? (think it only has two motor inputs, so not sure how to get round this), or does someone have any suggestions as to a better controller etc
I have looked at the Robotics Connection Serializer, which is well made (I have the Range Wizard), and I would say that the 4A/motor limit of the onboard motor controller will not work well with A4WD1.
The two 12v motors on each side of the A4WD1 can draw up to 6-8 amps as a pair, under heavy load, which will far exceed the Serializer 4A/side limit. However, the Serializer can control external H-Bridges so I am sure that you can probably find an H -Bridge that will work with the A4WD1 motors if that is the way that you still want to go.
Excuse my ignorance, not quite sure what an h-bridge is? the company in the UK I will buy my bits from is www dot active-robots dot com I will have to see if they have them?
What are my other options, if I don’t go for the serializer card, can anyone recommend any other controller cards that I can program in Visual Basic, C+, C# or Microsoft Robotics Studio?
bit confused here, as the spec for the motors says:-
12Vdc, 200RPM Gearhead Motor
Motor Characteristics:
Voltage: 12Vdc
Current (no load) = 90mA
Current (locked shaft) = 1.5A
Reduction Ratio: 30:1
Output Speed: 200RPM
Weight: 152g
so is the limit on the serializer 4a per motor, if so isn’t this info telling me each motor is 1.5a, so if I wired two together for left and two for right, it would only be 3a per side? excuse my ignorance
If not will have to choose a different chassis as serializer seems to be good (an as you say well made?) unless other suggestions of a different controller to use
Incorrect. The motors on the A4WD1 have a 1.5amp stall current. So it’s only 3 amps with both motors locked up tight and told to go full speed. A situation not likely to happen. In normal use, bot moving on level surface, the two motors combined current would only be around 500mA.
thank you both for replying, so could this mean I could connect the two left motors to one port on the serializer and the two right motors to the other port
if each motor is only producing 1.5a at most, then connecting them together will be 3a at most at the serializer wl can handle up to 4a per channel?
