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    My son's toy car exhaust sound :)

    I was googling for a car exhaust sound IC. But could not find any. Another option is to use and arduino+an SD card with card reader+a speaker. But I think this solution is too expensive.
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    SCADA

    Old thread. I hope the questioner is doing a prestigious job. However, here are some SCADA related Q n A that may help many in the future: https://instrumentationtools.com/scada-interview-questions-answers/
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    5v to 3.3v input on pico

    I am comfortable using logic-level converter modules rather than looking for resistors and breadboards to connect. Anyway, of course, using resistors will be less costly.
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    433MHz Transmitter Range Problem

    I think it's more convenient to get a new pair of 433MHz RF transmitter and receiver pair. Like the FS1000A. By the way, if you ever consider using something more advanced, you can consider nrf modules. https://www.theengineeringprojects.com/2019/02/introduction-to-nrf24l01.html
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    5v to 3.3v input on pico

    I think the easiest method is a to use a bi directional logic level converter module. That can convert 5V to 3.3V and vice versa. You can buy one from sparkfun, waveshare or any other similar websites.
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    My module psu design

    Typing www.electronicspoint.com is now taking me to makerpro.
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    Automatic air freshener - timer

    For more help, you can visit SC Johnson peoduct information website.
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    please i need a mentor to guide to learn how to make basic electronic circuits especially led emergency lights, mobile phone chargers, laptop chargers

    You can post your requirement to the freelancing platforms. Many eletronics experts are available at those websites.
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    AC motor question

    Is there any way to find out the motor's model number? I think it will be helpful if you find the datasheet.
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    Best Hall effect sensor for ignition?

    You can consider 3144 or Honeywell SS360NT hall effect sensors.
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    Hall sensor time out calculation

    I think he/she is referring to the time interval during which the system waits for a valid signal from the hall sensor.
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    Problem with ceiling led

    Not necessarily the problem is in the strips. It can exist in other parts of the circuit too. If possible, try to test the strips with a direct power supply. And see how they response.
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    Hello, Welcome! (Introduce yourself)

    An EEE graduate with job experience of 8 years.
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    How to drive ultrasonic transceiver

    Hello, is there any picture or link of the transceiver that you're using?
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    Nano microchip and circuits

    Converting an electric circuit with Connecting things to a nano-scale microchip is challenging due to the small size of the chip and its components. Specialized equipment and techniques, such as focused ion beam (FIB) or electron beam lithography, are used to create tiny wires or contacts to...
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    Dry run protection for DC Solar Pump sourcing water from a borehole

    A mechanical flow switch can be a low-cost and straightforward solution for your application. It can detect the flow of the liquid and provide a switch output when the flow rate is above or below a certain threshold. You can find mechanical flow switches that are compatible with your voltage...
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    Coke versus tap water resistance

    Will we get an accurate result if we try to measure the resistance of liquid with an ordinary digital multimeter? I think we can get an idea about which liquid has higher resistance than the others. But an accurate result in ohms may not be possible.
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    Switching DC motor with TIP122 and Arduino

    I think this may help: https://electricdiylab.com/arduino-tip122-dc-motor-control/
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    Help Understanding Simulation Errors

    I think you'll get more accurate answers if you post this to KiCad forum.
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    Hello Everyone!

    Welcome to Maker Pro. Nice to know you.
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