Hi All
I am experiencing something I can't explain with project 9- Motorrized Pinwheel. It took me an hour to figure out what was wrong however I don't have any explanation of the logic behind it, hope you can explain.
I set up the circuit and wrote the code, I decided to connect the negative lead of the battery directly to the ground pin on the circuit rather than on the breadboard. However the circuit did not work. Then, I moved the negative lead of the battery from circuit to the breadboard and the circuit started working just fine. I did continuity test the ground pin on the board is connected to breadboard's negative pin which means technically doesn't matter where I connect the negative lead of the battery. Why the circuit did not work when the lead was connected directly to the circuit.
Where did you find this "project"? Post a link.
I do not see any ground connection from your Uno board to your breadboard. The battery ground must be connected to the breadboard ground AND the Uno ground. If you have your board connected to your PC, that ground is not the same since your PC has it's own battery (laptop) or connected to A/C and neither of those connect to your circuit battery.
FYI.. This has nothing to do with "Installation and Troubleshooting" since this forum deals with getting the software installed and setup (unfortunately, a very common mistake). You should request a moderator move your post into "Project Guidance"
That looks fine but breadboard contacts often fail with minor movements of the wires like when removing the meter pins.
It's not really obvious whether you connected the Vcc and GND pins correctly between Uno and both sides of the breadboard. It's a good idea to have different colors (red and blue) for the Vcc and GND wires.
I ask purely out of curiosity, but what the heck is a "pinwheel"?
Hello muhac80
Post your current sketch, well formated, with comments and in so called code tags "</>" and a schematic, not a Fritzy diagram, to see how we can help.
Have a nice day and enjoy coding in C++.
Дайте миру шанс
It's a turnable wheel on a pin, where "wheel" can have many looks.
Leo.org provides translations into your language.
The "Project 9" is part of the Arduino Starter Kit.
Thank yo for the replies. Sorry for the quality of the diagrams and pics as I am not very good at these type of things.
I put the 2 diagrams below; The right diagram shows what I had it in the first place and the motor did not work, whereas, the left diagram worked just fine.
In the right configuration I am connecting the battery's negative polar to the gnd on the arduino board directly and the motor doesn't work for some reason. However when I perform continuity test on the both GND pins on the arduino board I verified that they are connected to each other.
There is no functional difference between those to drawings. Both have motor and arduno tied to ground. You probably have a loose wire or something on your breadboard.
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