Comments on: Repair and Working Principle of IC LM 324-Based on Sensors IR & LDR Automatic Lighting Controller

By: Behzad

Behzad — Mon, 20 Oct 2025 02:23:15 +0000

Hi All
Thank you so much of your supporting comments
Rgrds
Beh

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By: Mark J

Mark J — Sat, 18 Oct 2025 19:40:23 +0000

Mr Beh good informative article. Thank you for sharing.

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By: Yogesh Panchal

Yogesh Panchal — Sat, 18 Oct 2025 14:05:09 +0000

Good Job!Beh

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By: Abdul

Abdul — Sat, 18 Oct 2025 11:45:09 +0000

Impressive, good Job
Best regards

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By: Parasuraman S

Parasuraman S — Sat, 18 Oct 2025 10:40:38 +0000

Very useful and educative article! Many, many thanks for writing such a detailed informative article with relevant guidelines.

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By: Albert van Bemmelen

Albert van Bemmelen — Sat, 18 Oct 2025 10:23:20 +0000

Glad to hear from you again after a long time by presenting this quite detailed automatic lighting controller repair Mr.Beh!
I suppose you afterwards also easily were able to check the now replaced LM324 in your opamp tester to confirm it was defect?
Replacing the defect PIR sensor was to be expected since on average those well-made PIR sensors can only last between 5 to 10 years anyhow.

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