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I made another scrap robot. Here are the pictures. She is made from parts of the Sunshine Robot, parts from the Omni-bot, and parts from the RAD robot, and an Electrical box. She is sort of a Frankenstein.
This is what I have so far.
I turned her on and connected to my desktop because I need another hub router for the usb ports.
I also haven't got any sensors on her yet. I have got only one sensor. But, I am hoping to make some progress soon.
I just slapped her together and tried to make a functional robot. The voice rec. and generation is working on the desktop soon to be transferred over the the W3 tablet.
that's about my progress.
By MovieMaker
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If Rich doesn't answer your question there are many others here that have the answer.
I have a red and black wire and a Grey and White wire going to ports 15,16,17,18.
If I roll the robot on the carpet, it generates voltage to the EZB 3. Weird.
The solution in Melvin was to change to 4 ports which do not go high when powered on, I do not know which I found in the end since I've replaced the V3 for a V4 now.
The other option may be to use speed control. If the PWM to the speed control pins isn't set the H-Bridge wont move even if some of the In ports are high.
Spinning a motor will generate current, it is the dynamo effect, you are basically generating electricity (like a dynamo on a bicycle). Some batteries can be harmed by doing this as can some controllers. To avoid this you can include diodes however on small robots it's generally not necessary.
One thing I thought of is that I am using ONLY the signal wires, not grounds or middle wires. Could this be the problem?
I am moving on to another problem. I will post it as a question.
Thanks!