It's only been a day since I started planning to build a robot. I'm planning to follow this wiring diagram which I've produced from another pic. I have limited knowledge regarding robotics, so I want to make sure if this schematic is correct.
I'm having a problem on the power input. Is it correct to have common ground on both boards?
You must have a common
You must have a common ground, though you need to do it intelligently. I believe having the common ground near the battery is best.
Also on an UNO the external interrupt pins are digital pins 2 and 3. You may not want to use the to control the motor. Also the servo library might conflict with pin 10, but I’m not sure.
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Final Diagram
Is this correct?
Are you planning to use external interrupts?
Interrupts are very useful for sensors like bumper switches. On the Uno the ponds D2 and D3 are your only real external interrups. Using them for motor control seems a waste.
Also, why are you using two batteries?
Oh, thanks for the info. I
Oh, thanks for the info. I won’t use bumper sensors for this.
I’ve fixed it. It only runs with one power source. Can you confirm this if this is correct? Also, the PWR is the barrel jack connector.
