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Understanding LED Arrays and R(D) Calc

General Electronics Chat One week ago at 12:31 PM

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

13 Replies
268 Views
How to switch multiple resistors without rotary switch

Analog & Mixed-Signal Design 6 days ago at 03:51 PM

Last message by AnalogKid on March 25, 2020 at 04:14 PM

30 Replies
579 Views
Can anyone identity this bulb??

General Electronics Chat 5 days ago at 06:33 PM

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

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

General Electronics Chat 2 weeks ago at 06:38 PM

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

8 Replies
141 Views
USB Lighting

General Electronics Chat 2 weeks ago at 03:21 PM

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

8 Replies
75 Views
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Help replacing LED on PCB

General Electronics Chat 3 weeks ago at 12:31 PM

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

19 Replies
258 Views
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Capacitor for occasional LED lighting flicker

General Electronics Chat About 4 weeks ago at 09:34 PM

Last message by MisterBill2 on March 2, 2020 at 08:16 PM

4 Replies
118 Views
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Need Help with a Slightly Different LED Flasher Circuit - Novice Here!

General Electronics Chat 4 months ago at 08:17 PM

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

70 Replies
1725 Views
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Need help powering LED

General Electronics Chat One month ago at 01:29 PM

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

4 Replies
136 Views
Relays to control turn signal/parking lights?

General Electronics Chat 4 weeks ago at 01:56 PM

Last message by shortbus on February 28, 2020 at 03:25 PM

6 Replies
115 Views
DIY LED Lamp with mains dimming

Power Electronics One month ago at 09:39 AM

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

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

General Electronics Chat 2 years ago at 10:52 AM

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

10 Replies
593 Views
reducing DC voltage in a circuit?

Technical Repair One month ago at 12:19 AM

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

19 Replies
273 Views
Need help with complex LED circuit

General Electronics Chat One month ago at 09:17 AM

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

2 Replies
85 Views
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Quirky idea for stage lighting

General Electronics Chat About 2 months ago at 01:52 PM

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

21 Replies
287 Views
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LED lamp - connecting leds in parallel

General Electronics Chat 2 months ago at 06:25 AM

Last message by plumbum_by on January 22, 2020 at 12:08 PM

10 Replies
179 Views
12V Supply to 5V Arduino Logic

Digital Design 2 months ago at 03:10 PM

Last message by Janis59 on January 20, 2020 at 06:13 AM

34 Replies
585 Views
Detection of low dc voltage to power a led

General Electronics Chat 2 months ago at 10:47 PM

Last message by RIKRIK on January 16, 2020 at 06:46 PM

13 Replies
294 Views
Dual transistor issue with ESP32

General Electronics Chat 2 months ago at 12:51 PM

Last message by Reloadron on January 13, 2020 at 05:08 PM

6 Replies
147 Views
Capacitor to stop LED lights from flickering

Power Electronics 2 months ago at 10:06 AM

Last message by AlbertHall on January 13, 2020 at 11:19 AM

1 Replies
140 Views