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LED Sequencer - NPN or PNP transistors ?

General Electronics Chat 2 weeks ago at 02:05 AM

Last message by Audioguru again on February 26, 2021 at 09:48 AM

75 Replies
1536 Views
G4 Lamp Base Substitute

General Electronics Chat 6 days ago at 09:34 PM

Last message by rick.curl on February 23, 2021 at 07:06 PM

5 Replies
170 Views
STM32 code inside while not working

Microcontrollers 3 weeks ago at 06:21 AM

Last message by MrChips on February 23, 2021 at 09:17 AM

30 Replies
497 Views
Do this particual model of LED strips produce ANY UV at all?

General Electronics Chat 5 days ago at 04:54 PM

Last message by Audioguru again on February 21, 2021 at 05:53 PM

4 Replies
87 Views
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LED driver question

General Electronics Chat 5 days ago at 10:39 PM

Last message by newleduser on February 21, 2021 at 04:18 PM

5 Replies
110 Views
Rangefinder sensor interrupted by LED light.

Sensor Design & Implementation One week ago at 07:08 AM

Last message by Sensacell on February 21, 2021 at 03:54 AM

19 Replies
797 Views
Dual way LED Circuit board

Automotive Electronics One week ago at 10:59 PM

Last message by LowQCab on February 17, 2021 at 06:24 PM

6 Replies
395 Views
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Converting 24VAC Halogen SCR Dimmed Fixture to LED

General Electronics Chat 5 years ago at 01:11 PM

Last message by MisterBill2 on February 16, 2021 at 04:50 AM

33 Replies
2380 Views
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Power On At Pre-Set AC Voltage

General Electronics Chat 2 weeks ago at 11:13 AM

Last message by KeepItSimpleStupid on February 9, 2021 at 11:52 AM

6 Replies
160 Views
How much power/how many batteries would I need.

Power Electronics One month ago at 04:07 AM

Last message by Audioguru again on January 29, 2021 at 10:41 AM

16 Replies
322 Views
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dimming 12v leds

General Electronics Chat One month ago at 05:00 PM

Last message by MisterBill2 on January 28, 2021 at 11:59 AM

3 Replies
207 Views
Desperate help needed...How do I power 8 LEDs?

General Electronics Chat One month ago at 07:37 PM

Last message by Audioguru again on January 26, 2021 at 08:19 PM

36 Replies
550 Views
Reduce 24V to 12V for my Capacitive sensor with optocoupler module

Sensor Design & Implementation 2 years ago at 05:58 AM

Last message by Rares23 on January 26, 2021 at 08:04 AM

7 Replies
641 Views
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I need help Identifying this led

Datasheets, Manuals & Parts Identification One month ago at 02:05 PM

Last message by PlanetTeck on January 20, 2021 at 02:57 PM

2 Replies
234 Views
5 Volt, 10 mA Offline Isolated Switch Mode Power Supply Design Ideas

Power Electronics One month ago at 08:58 AM

Last message by DickCappels on January 20, 2021 at 06:54 AM

9 Replies
245 Views
Help me with this simple LED light circuit?

Power Electronics One month ago at 10:23 PM

Last message by Wolframore on January 17, 2021 at 09:20 AM

13 Replies
285 Views
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LED Driver replacement

Datasheets, Manuals & Parts Identification 2 months ago at 09:17 PM

Last message by bassbindevil on January 12, 2021 at 02:31 PM

5 Replies
389 Views
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LED Bulb (house bulbs) burning out. Anyone else see this?

General Electronics Chat 4 years ago at 03:54 PM

Last message by neonstrobe on January 11, 2021 at 12:16 PM

75 Replies
11731 Views
PIR to Optocoupler circuit 201230

General Electronics Chat About 2 months ago at 03:46 PM

Last message by allenpitts on January 10, 2021 at 01:43 PM

33 Replies
866 Views
BiColor LED = both colors light up with current wiring

General Electronics Chat One month ago at 04:06 PM

Last message by djsfantasi on January 7, 2021 at 06:12 PM

11 Replies
248 Views