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I am in a wheelchair and rely upon digital LED lights powered by a USB connection with a portable battery bank. The problem I’m finding is two fold. The company that makes it has a USB plug from which the line runs to the first digital light bar. A second light bar is in a chain from the first.
See the diagram below:
USB - [IIIIII]
CABLE - =========
LIGHT BAR - [ @ @ @ @ @ @ @ @ @ ]
NOTE: There is something in between the USB and light bar that is heat shrinked so i cannot identify what the item is that I need to add.
CURRENT DESIGN: [IIIIII]—————[ @ @ @ @ @ @ @ @ @ ]—————–[ @ @ @ @ @ @ @ @ @ ]
I want to quit relying upon their design and switch to a “Y” design with two separate light bars being powered via the USB and power bank. NOTE: (The system they sell me has a remote control.)
I would like to re-design it with two separate cables, one from each light bar. That way i can set the length of each cable specific to what i need.
The light bars have velcro on the back BUT when you go to separate the two pieces, you run a risk of damaging the light bar from the pulling
of the velcro to separate the two pieces.
Amy help on this would be greatly appreciated…
——————– Tech Support Tips/Troubleshooting/Common Issues ——————–
Dimensions of the LED Light Bar
The dimensions of the LED Light Bar (White) are listed below including a drawing:
Hi, I have a question about dimming the led. Does it have to be using pwm or can a pot do the job? If both works what is the advantage of pwm over simple pot?
If you want a pot in your design, as the tutorial suggests you can connect the pot to the ADC input of a micro-controller and adjust brightness through software or have it in a 555 circuit that generates a PWM signal.
If you've found a bug or have other constructive feedback for our tutorial authors, please send us your feedback!
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