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Android User Help

Samsung S9- how to disable automatic WiFI connecting?

When your android S9 phone has already once connected to a WiFI network, it automatically saves the password/SSID and will connect to that WiFI everytime when you turn on WiFI on your phone. Is it somehow possible to force android not to connect automatically to any saved WiFI network? It can still save WiFI passwords, […]

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Android User Help

Google Keep Reminders

Is there a way to undo a ‘marked as done’reminder? I accidentally hit ‘mark as done’ and didn’t even see what it was. I don’t see ‘undo’ option for this. Is there any easy way to find what I marked as done?

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Ask Engineering

Professional technique used for logging power consumption of a DC circuit

I wonder how do the electronics device manufacturing companies log and plot the power consumption plot by time. I would think they sample both voltage and current simultaneously and multiply these two. But if the data loggers are measuring voltages one needs to add a low value series resistor across the main Vcc line from […]

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Ask Engineering

What would be the best/economical solution to detect an AC device activation?

I want to know when a device is turned on/off and generate some statistics. Microcontroller: ESP8266 AC voltage: 220V The first thing that came to my mind was using a power consumption sensor which will translate to OFF when consumption = 0 and ON when consumption > 0. But probably there’s a more efficient or […]

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Using OpAmp to drive LEDs according to incoming signal

Following schematic was suggested for visualizing the frequency (which is variable) of an oscillator using two LEDs that light up alternatingly. It seems that the value of the resistor determines how much voltage is provided to the LEDs. I’ve never seen this circuit before and was wondering, is there no need for a current limiting […]

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Ask Engineering

Why is a 103Z capacitor use with N20 DC motor?

So capacitor 103z is used in parallel with N20 DC motor, I would like to know why?

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Ask Engineering

How am I supposed to find the current flow?

Can someone help me with this one problem please thank you, I’ve been trying to answer this problem but everytime l did I’m still not sure if i got the correct answer. Thanks

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CMS Drupal Mastering Development

Theme recommendation for webform on mobile phone

I am aware that webforms can be themed with .tpl work. I am hoping for a “non-programming” alternative to a very narrow issue. I stuck with Bartik early on and switched to Responsive Bartik about a year ago. It does everything I need with one exception. A webform with Responsive Bartik renders poorly on Android. […]

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CMS Magento Mastering Development

Magento 1.9 – How to get contact Us page on Category -> Display Setting -> CMS block?

I have contact us page on my website URL like website.com/contact I want if i click my category show contact page. I am created CMS Static block: And assign to category page: if i click category page return empty page

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Cryptocurrency Ethereum Mastering Development

How to separately optimize bytecode?

This question is regarding the bytecode-optimizer of the solidity-compiler, not the yul-optimizer: Is there any way to separately optimize bytecode? Normally the solidity-compiler optimizes the deployment-bytecode while compiling solidity-code as one of the last steps. When I have unoptimized (deployment-)bytecode, how would you optimize the existing bytecode? Re-compiling the solidity-code is unfortunately not an option. […]