Excellent Tutorial!! How would you modify this code to light up a group of LEDS (for example only 3) so that the position of those 3 LEDs that are "on" would track the position of the slider - moving Left or right as the slider moves?
Hi, thank you for the video! Very helpful. I am trying to make a simple circuit, without an arduino/coding. I have a 5v usb power bank to supply current for a 5v led cob strip. I want to add in a slide or knob potentiometer to regulate voltage going to the led strip (to control brightness). Is this possible? Do I need to include resistors, even if the usb power bank only outputs 5volts? Thank you.
_"I want to add in a slide or knob potentiometer . . . . do I need to include resistors "_ The slide/knob potentiometer is a resistor ! Chop off the end of your USB lead (not the end you plug into the USB powerbank !) . . . find the +5v wire (usualy red or orange) and the ground wire (usually black or blue), these go to the +5v and ground on the cob strip . . . insert your slide/knob potentiometer between the ground of your USB lead and the ground of the cob strip. So the +5v goes from the USB powerbank to the cob strip . . . the ground goes from the USB powerbank to the potentiometer and then to the cob strip.
Looks like he's using a linear potentiometer, but a logarithmic would work too, it will just give you a different feel . . . personally I would use a linear potentiometer. [EDIT] just watched again, it actually looks like he's using a logarithmic potentiometer, as if you watch the video around 4:15 when the slider is half way through the travel it's already showing 900+ . . . so probably logarithmic (but Linear would work too).
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Your video quality is pretty good, im surprised you don't have more subs. Thanks for the ideas!
Nicely explained.
Thanks
I have an issue using with neopixel strip. Sometimes the last led flickers. How do I correct this. Would I need to use the fastled neopixel library?
Excellent Tutorial!! How would you modify this code to light up a group of LEDS (for example only 3) so that the position of those 3 LEDs that are "on" would track the position of the slider - moving Left or right as the slider moves?
Thank you so much.
thank you alot
Hi, thank you for the video! Very helpful. I am trying to make a simple circuit, without an arduino/coding.
I have a 5v usb power bank to supply current for a 5v led cob strip.
I want to add in a slide or knob potentiometer to regulate voltage going to the led strip (to control brightness).
Is this possible? Do I need to include resistors, even if the usb power bank only outputs 5volts?
Thank you.
_"I want to add in a slide or knob potentiometer . . . . do I need to include resistors "_
The slide/knob potentiometer is a resistor ! Chop off the end of your USB lead (not the end you plug into the USB powerbank !) . . . find the +5v wire (usualy red or orange) and the ground wire (usually black or blue), these go to the +5v and ground on the cob strip . . . insert your slide/knob potentiometer between the ground of your USB lead and the ground of the cob strip. So the +5v goes from the USB powerbank to the cob strip . . . the ground goes from the USB powerbank to the potentiometer and then to the cob strip.
i have a question if i connect multiple potentiometer will the strips react every potentiometer
That would depend on how you have everything connected.
@@davelordy that's the problem sir i don't know how to make the connection hahaha
@@ziqtkd8588 No information = no answer.
U didn't show the wire connections to the LEDs
Linear or logarithmic characteristic?
Looks like he's using a linear potentiometer, but a logarithmic would work too, it will just give you a different feel . . . personally I would use a linear potentiometer.
[EDIT] just watched again, it actually looks like he's using a logarithmic potentiometer, as if you watch the video around 4:15 when the slider is half way through the travel it's already showing 900+ . . . so probably logarithmic (but Linear would work too).
@@davelordy Yes, most likely these are logarithmic. Thank you for your attention!
@@davelordy Thank you for your attentiveness!
@@borisua4879 👍