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How to drive many LEDs for large display clock?

General Electronics Chat 3 months ago at 10:57 AM

Last message by KeepItSimpleStupid on May 10, 2020 at 02:27 PM

42 Replies
756 Views
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Industrial version of neopixel LEDs?

Automation, Robotics & Control 3 months ago at 07:56 AM

Last message by bassbindevil on April 25, 2020 at 01:15 PM

6 Replies
285 Views
LED flashlight voltage... how would you do it?

Analog & Mixed-Signal Design 3 months ago at 06:57 PM

Last message by djsfantasi on April 12, 2020 at 10:25 AM

6 Replies
225 Views
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Capacitor discharge through optocoupler

General Electronics Chat About 4 months ago at 04:23 AM

Last message by franck102 on April 9, 2020 at 07:14 AM

10 Replies
304 Views
Add a work light to powertools (Powered Screwdriver)

Technical Repair 4 months ago at 02:46 PM

Last message by Dodgydave on April 8, 2020 at 04:53 AM

24 Replies
374 Views
Constant Voltage LED Driver Correct Usage Help

General Electronics Chat One year ago at 04:46 PM

Last message by Tonyr1084 on April 2, 2020 at 11:20 AM

5 Replies
229 Views
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RSS - add an image link

Programming & Languages 4 months ago at 05:45 AM

Last message by Vincent_INSA on April 2, 2020 at 05:45 AM

0 Replies
87 Views
XL6005 understanding the datasheet

General Electronics Chat 4 months ago at 03:54 AM

Last message by Audioguru again on April 1, 2020 at 05:18 PM

15 Replies
571 Views
Understanding LED Arrays and R(D) Calc

General Electronics Chat 4 months ago at 12:31 PM

Last message by Reloadron on March 28, 2020 at 04:07 PM

13 Replies
373 Views
Can anyone identity this bulb??

General Electronics Chat 4 months ago at 06:33 PM

Last message by Tonyr1084 on March 24, 2020 at 06:15 AM

2 Replies
266 Views
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Electronics rookie trying to convert broken LED display into skylight

General Electronics Chat 4 months ago at 06:38 PM

Last message by psamaac on March 13, 2020 at 02:46 AM

8 Replies
247 Views
USB Lighting

General Electronics Chat 4 months ago at 03:21 PM

Last message by rickbadley on March 12, 2020 at 04:33 PM

8 Replies
129 Views
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Help replacing LED on PCB

General Electronics Chat 5 months ago at 12:31 PM

Last message by MisterBill2 on March 6, 2020 at 07:20 PM

19 Replies
371 Views
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Need Help with a Slightly Different LED Flasher Circuit - Novice Here!

General Electronics Chat 8 months ago at 08:17 PM

Last message by ninjagrips on February 29, 2020 at 10:25 PM

70 Replies
1946 Views
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Need help powering LED

General Electronics Chat 5 months ago at 01:29 PM

Last message by Parmjit_sparky_singh on February 29, 2020 at 07:57 PM

4 Replies
192 Views
DIY LED Lamp with mains dimming

Power Electronics 5 months ago at 09:39 AM

Last message by DickCappels on February 14, 2020 at 10:18 AM

2 Replies
185 Views
Novice: Aquarium Lighting using 25 3.6V/700mA LEDS to a 12V adaptor

General Electronics Chat 3 years ago at 10:52 AM

Last message by Audioguru again on February 13, 2020 at 07:45 AM

10 Replies
626 Views
reducing DC voltage in a circuit?

Technical Repair About 6 months ago at 12:19 AM

Last message by jzeds1491 on February 9, 2020 at 06:08 AM

19 Replies
382 Views
Need help with complex LED circuit

General Electronics Chat About 6 months ago at 09:17 AM

Last message by dl324 on February 6, 2020 at 09:31 AM

2 Replies
144 Views
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Quirky idea for stage lighting

General Electronics Chat 6 months ago at 01:52 PM

Last message by MisterBill2 on February 5, 2020 at 08:24 AM

21 Replies
386 Views