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Connecting HC-SR505 (PIR) to relay module

Sensor Design & Implementation 2 weeks ago at 09:04 PM

Last message by wodrith on July 1, 2020 at 11:25 AM

34 Replies
810 Views
Relay spst vs spdt

General Electronics Chat One week ago at 06:37 PM

Last message by dendad on June 28, 2020 at 08:03 PM

2 Replies
71 Views
26 Replies
299 Views
"PNP transistor as a SELECT SWITCH" is it possible?

IC Design 3 weeks ago at 08:02 AM

Last message by Audioguru again on June 15, 2020 at 06:48 AM

6 Replies
193 Views
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DPDT relay motor reversing with DPDT switch

General Electronics Chat 3 weeks ago at 08:22 AM

Last message by Nykolas on June 14, 2020 at 05:18 PM

4 Replies
170 Views
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Help in selecting correct switch or even if one exits

General Electronics Chat 4 weeks ago at 05:15 AM

Last message by J_D on June 11, 2020 at 11:35 AM

4 Replies
88 Views
looking to automate a hay baler

Automation, Robotics & Control One month ago at 12:48 PM

Last message by crutschow on June 10, 2020 at 08:34 AM

22 Replies
417 Views
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4060 chip for seconds and hours

Digital Design 4 years ago at 06:54 AM

Last message by howie4024795 on June 7, 2020 at 09:17 AM

140 Replies
8312 Views
why not a Diode before a relay ?

General Electronics Chat One month ago at 04:06 PM

Last message by BobaMosfet on June 4, 2020 at 09:03 AM

22 Replies
366 Views
Power on/off relay

Power Electronics 10 years ago at 12:48 AM

Last message by bikesquid on May 26, 2020 at 05:37 PM

13 Replies
5939 Views
Power cutoff with automatic reset on power restore

Power Electronics One month ago at 07:24 AM

Last message by crutschow on May 25, 2020 at 02:33 PM

5 Replies
124 Views
Will this work for controlling (independently) two actuators?

Automation, Robotics & Control One month ago at 02:26 PM

Last message by dendad on May 24, 2020 at 02:39 AM

3 Replies
150 Views
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Two power supplies together

Power Electronics One month ago at 02:31 AM

Last message by Luxten on May 22, 2020 at 07:54 AM

6 Replies
122 Views
Project: Solar/Wind PIC controlled battery array

Power Electronics 10 years ago at 12:00 PM

Last message by nsaspook on May 20, 2020 at 09:26 PM

116 Replies
18356 Views
4 Replies
407 Views
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Just some general questions about remaking something from the past

Technical Repair About 2 years ago at 08:11 AM

Last message by MisterBill2 on May 8, 2020 at 02:36 PM

720 Replies
18550 Views
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Wiring for Battery and/or Transformer Power

Power Electronics 2 months ago at 10:41 PM

Last message by George Langley on May 7, 2020 at 01:21 PM

5 Replies
165 Views
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Chicken Coop Door Opener

General Electronics Chat 4 years ago at 11:26 AM

Last message by Mouthpear on May 6, 2020 at 08:29 AM

29 Replies
1805 Views