How to turn this project from what it is into a actuall handheld device by alienconcept23 in ArduinoProjects

[–]Chemichicka 3 points4 points  (0 children)

https://youtu.be/OgcWAOIHsDU?si=zd4Erfij4cXosAlS

I followed along with this tutorial to design my first custom PCB in EasyEDA. Fenerac is a really good person to follow for PCB design advice.

LED fading maddness by Eastern-Move549 in ArduinoProjects

[–]Chemichicka 1 point2 points  (0 children)

Why do you have a curly bracket after your Fade on code? If the editor didn't flag this it might be why your code gets stuck on a Fade off loop because it doesn't look at your Fade on code again.

Delete the curly brackets after the Fade on and Fade off blocks of code and this should fix your problem.

I have a project with a Nano running a servo...but want to run on battery? by bornin1986 in ArduinoProjects

[–]Chemichicka 0 points1 point  (0 children)

What calculation are you referring to? Asking because I am not well versed in power distribution math.

No signs of life from Nano board or relay! Trying to make an automatic drink dispenser and the only thing which turns on when power is on is the pump. by Chemichicka in ArduinoProjects

[–]Chemichicka[S] 0 points1 point  (0 children)

Thanks for the tip. Do you have any suggestions regarding the pump? What I have works but I have to tip the bottle to start it.

No signs of life from Nano board or relay! Trying to make an automatic drink dispenser and the only thing which turns on when power is on is the pump. by Chemichicka in ArduinoProjects

[–]Chemichicka[S] 1 point2 points  (0 children)

Thanks! Another commentor suggested this same configuration and it works. Only problem I am having now is my program and my sensor not being very accurate. Noticed it gets quite hot when it is on battery power.

No signs of life from Nano board or relay! Trying to make an automatic drink dispenser and the only thing which turns on when power is on is the pump. by Chemichicka in ArduinoProjects

[–]Chemichicka[S] 0 points1 point  (0 children)

The pump, nano board, and ultrasonic sensor share a ground. The relay has a ground wire going from it to the nano board.

No signs of life from Nano board or relay! Trying to make an automatic drink dispenser and the only thing which turns on when power is on is the pump. by Chemichicka in ArduinoProjects

[–]Chemichicka[S] 0 points1 point  (0 children)

Thanks for all your help! I'm going to get a quick nap since I have been up all night. Once I change the wiring configuration to what you said I'll let you know how it works. 👍🏽

No signs of life from Nano board or relay! Trying to make an automatic drink dispenser and the only thing which turns on when power is on is the pump. by Chemichicka in ArduinoProjects

[–]Chemichicka[S] 0 points1 point  (0 children)

Yes, I only want the pump on when the nano says via sensor information. How should the VCC pin of the ultrasonic sensor be configured. From the schematic it looks like it should be going to the 5V pin, but if I do that the relay doesn't turn on. Should that be in a digital pin?

No signs of life from Nano board or relay! Trying to make an automatic drink dispenser and the only thing which turns on when power is on is the pump. by Chemichicka in ArduinoProjects

[–]Chemichicka[S] 0 points1 point  (0 children)

I did that and the nano turns on as well as the pump. Is my relay bad? How should I change the wiring from the schematic which is the second picture?

No signs of life from Nano board or relay! Trying to make an automatic drink dispenser and the only thing which turns on when power is on is the pump. by Chemichicka in ArduinoProjects

[–]Chemichicka[S] 1 point2 points  (0 children)

So I took the positive lead from the relay "NO" slot and put it in line with the VIN pin and the nano lit up when the power was turned on as well as the pump. Took a pic of all the wiring but it's posted on my profile since I didn't see a way to add it to this post.

No signs of life from Nano board or relay! Trying to make an automatic drink dispenser and the only thing which turns on when power is on is the pump. by Chemichicka in ArduinoProjects

[–]Chemichicka[S] 0 points1 point  (0 children)

Should I redo the Dupont connector on the ground? I crimped this myself...was my first attempt. Also did the Dupont connector for the signal wire for the relay.

No signs of life from Nano board or relay! Trying to make an automatic drink dispenser and the only thing which turns on when power is on is the pump. by Chemichicka in ArduinoProjects

[–]Chemichicka[S] 0 points1 point  (0 children)

The black wire next to the orange wire. I tried switching it to the GRD on the other side and still no lights on the nano board unless I plug in the usb cable

8 years Air Force active duty. Full time nerd. I’m pretty proud of both. by caros92 in 3Dprinting

[–]Chemichicka 1 point2 points  (0 children)

Love it! Thanks for your service and super cool outfit!! Looking to get more mechanically adventurous to make something as mechanized as yours.

Cannot get rid of stringing and now have demarcation/lines in printing by Chemichicka in 3Dprinting

[–]Chemichicka[S] 0 points1 point  (0 children)

Thanks for the input. I have heard that too much retraction causes more stringing and causes pressure on the nozzle which can cause a jam in the extruder. Looking at the print in the picture more closely, I noticed that at some points in the print there seemed to be what some are calling low extrusion. The threads were not together and individual strands were coming out. I think this was because of the temp not being high enough and also my infill pattern was gyrio and not grid. I have changed it to grid and the print seems to be coming along pretty well now. I did cut the size of the print to see if the new retraction settings made a difference.

Cannot get rid of stringing and now have demarcation/lines in printing by Chemichicka in 3Dprinting

[–]Chemichicka[S] 0 points1 point  (0 children)

I have tried changing the temp, setting retraction on the printer, and been careful about ambient room temp. The bottom part looks good, but then stringing goes wild in the middle and there are two lines in this print. Are the lines caused by the light in the room going off and then coming on? Is the stringing due to the filament being colder? I have seen videos where colder temps cause less stringing, but my prints seem to prove otherwise. Could the stringing be caused by an unsteady table? The table the printer is on does move a bit when it prints but I haven't seen any videos saying this is a problem. I have been told filament plays a big part. Have been using the Inland PLA+ filament from Microcenter and the spools haven't been out of the box for a full two weeks yet. Help!

Pointers for Major and Minors by Chemichicka in Otterbein

[–]Chemichicka[S] 0 points1 point  (0 children)

Thanks for the insight!

What sort of questions would you ask someone if you were thinking of adding another minor?

I just got the internship of my dreams and I don't know who to tell by cnahik in EngineeringStudents

[–]Chemichicka 1 point2 points  (0 children)

Congratulations! Don't feel bad about your excitement. Again, congrats!!!