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Electronics Forum (Circuits, Projects and Microcontrollers)

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Website title: Electronics Forum (Circuits, Projects and Microcontrollers)

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Message History

Voltage comparator circuit verification
The circuit attached is a light detection circuit with two channels.

The purpose is to obtain a low voltage on the output of the mosfet source pin and have the corresponding LED light up depending on the light being measured.

The phototransistor has an emitter pin (anode, connect to Vcc) and a collector pin (cathode) to be connected to the voltage comparator in...

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Help with a coffee machine circuitboard
Hey guys, I'm reaching out to you because I need some help. I have an automatic espresso machine (Saeco Aulika Evo Focus) and it stopped working. I took it apart and I noticed the component marked in yellow was burnt off (HC14AG), so I replaced it with the only thing I could get from local providers (74HC14). The thing is that I didn't only try that, but I also too...

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message to members of electrotech
Greetings, the powers that be at Electrotech have banned me. After several thousand messages posted and many years participating in this forum, my time here has come to an end.

To those I have helped and guided over the years, I am happy to have helped. To those who have enjoyed or learned from my posts, thank you. It's been my pleasure.

Sadly in my time here, ...

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Bot checks
Why is it necessary for annoying bot checks when I visit the site, even though I'm already signed in?

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Can't edit tag in my Electronics Projects Post
I want to edit my Tag in My Electronics Projects post, but trying to do an edit does not show the Tag.
Is that a bug, or is there a way to edit the Tag.

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