👉 Don't forget to check arduino-tutorials.net for more Arduino tutorials and projects. If you have questions, don't hesitate to ask them in de comments. Remember: There are no stupid questions 😃
How could I connect multiple potentiometers to one Arduino all for different functions? I have 10 pots and I want to make a set of volume faders. Would I need more than one Arduino?
Hi Charlie, the easiest is an Arduino Mega which has 15 analog-in pins. However with an UNO it is possible as well, using a techniques like multiplexing.
Haven't tried these myself: uk.farnell.com/c/passive-components/potentiometers-trimmers-accessories/slide-potentiometers I think the more expensive ones could be a lot smoother.
I guess you have to measure this yourself. In order to have a very accurate mapping in mm and the resistance you'll need a more "professional" sliding potentiometer.
This potentiometer has nothing to do with distance, but with resistance. Therefore it is not possible to determine a certain movement of the slider and convert this into mm movement.
@@BasonTech I was doing a project and using the Mozzi library which doesn't allow you to use most interrupt functionalities. Luckily I realized the authors implemented their own version of analogRead() called mozziAnalogRead(). Thanks for the help though!
I can not guarantee anything 😉 but basically it is just a variable resistor, like a potentiometer. So I don't see what kind of problems it could give when used without the PCB
Hi, in the description of the video you'll find a link to the course material. This contains the .ino file for the challenge. Make sure you've tried it yourself first, otherwise you've learnt to copy/paste 😃
if you use this as a digital caliper you can get a resolution of 0.01mm which is not bad because the Arduino ADC is 10bit, but the ADC on a ESP32 is 12bit, so the possible resolution is 0.005mm which is even better!
Keep in mind that using a sliding potentiometer will only work as a caliper when it has a linear scale. The non-lineairs will give you the wrong values 😃
I have a question: what happens when you use 3.3v instead of 5v to connect the potentiometer? The project I am working on uses a Teensy 4.1, and they only have 3.3v available.
👉 Don't forget to check arduino-tutorials.net for more Arduino tutorials and projects.
If you have questions, don't hesitate to ask them in de comments. Remember: There are no stupid questions 😃
If we use exponential function of input, we can get linear result. It is very easy to convert from log to linear.
Heyy! How could I read direct digits like if 1000-1022 for example. If you could please provide code you will be AMAZING!
Goede video, ga zo door!
Thanks! 😃
There is a configuration in the pin-out for only uset like a potentiometer without voltage?
Sorry I don't really get your question. Could you maybe give some more details?
How could I connect multiple potentiometers to one Arduino all for different functions? I have 10 pots and I want to make a set of volume faders. Would I need more than one Arduino?
Hi Charlie, the easiest is an Arduino Mega which has 15 analog-in pins. However with an UNO it is possible as well, using a techniques like multiplexing.
Bas on Tech I am using the Leonardo with a multiplexer. Will this work?
If you only need 10 analog inputs, you don't have to use a multiplexer since the Leonardo has 12 analog inputs. 😃
Hi Sir. can you please tell me which sliding potentiometer ist smooth-running? i bought one but its tough
Haven't tried these myself: uk.farnell.com/c/passive-components/potentiometers-trimmers-accessories/slide-potentiometers I think the more expensive ones could be a lot smoother.
Can you connect a led to fade with sliding the pontetiometer???
Sure! The potentiometer just gives you a value, you can use it any way you'd like 😃
@@BasonTech I did a program that takes values from lightsensors to give number's to pure data on pc and I made an other program that use 3 ponts.
When I combine the codes it make a lot of noise to one pont. Signal
Hi can you help find potmeter datasheet and how can I convert voltage output into mm
I guess you have to measure this yourself. In order to have a very accurate mapping in mm and the resistance you'll need a more "professional" sliding potentiometer.
Can I measure a short distance (4mm), Resolution 0,1mm with that?
The measurement is about the Position of a valve
This potentiometer has nothing to do with distance, but with resistance. Therefore it is not possible to determine a certain movement of the slider and convert this into mm movement.
In seral monitor I cant get the value as 0 can u please suggest how to rectify this
What is the range of the values you can get in the serial monitor?
Is there a way to do this purely through hardware without the analogRead()?
What do you mean by "purely through hardware"?
@@BasonTech I was doing a project and using the Mozzi library which doesn't allow you to use most interrupt functionalities. Luckily I realized the authors implemented their own version of analogRead() called mozziAnalogRead(). Thanks for the help though!
Can this be used without the PCB without problems?
I can not guarantee anything 😉 but basically it is just a variable resistor, like a potentiometer. So I don't see what kind of problems it could give when used without the PCB
How Can i See the Solution of the challenge?
Hi, in the description of the video you'll find a link to the course material. This contains the .ino file for the challenge. Make sure you've tried it yourself first, otherwise you've learnt to copy/paste 😃
if you use this as a digital caliper you can get a resolution of 0.01mm which is not bad because the Arduino ADC is 10bit, but the ADC on a ESP32 is 12bit, so the possible resolution is 0.005mm which is even better!
Keep in mind that using a sliding potentiometer will only work as a caliper when it has a linear scale. The non-lineairs will give you the wrong values 😃
@@BasonTech the logarithmic ones can still be used for this purpose but the math is a little bit more difficult.
Fair enough, although I think buying a lineair one could save you some headache figuring out the math 😉
@@BasonTech the function is already made by others
I have a question: what happens when you use 3.3v instead of 5v to connect the potentiometer?
The project I am working on uses a Teensy 4.1, and they only have 3.3v available.
According to the specs on arduino-tutorials.net/r/mleya8 this sliding potentiometer supports both 5V and 3.3V.
If you're looking to use this as a game controller, you need a Leonardo or Pro Micro. Uno won't work
Didn't knew the Leonardo could also be used as a HID, thanks for sharing! 😃