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    1602 Display Problem

    Circuit diagram
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    supplier recommendations

    Jaycar.......... Altronics.........
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    5V Computer Fan - easy way to reduce speed?

    Remember the wattage required........:) Edit:- no need, signal level only.:oops:
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    1602 Display Problem

    That is a 16x2 but what was meant was, ................show a photo of the back of the one on you tester. Difficult to get at as the LCD is mounted with small spacers on top of the main board. Appears though, from the link below, this is a fixed resistor. There is a mod mentioned under...
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    supplier recommendations

    RS Components ......... Element14...probably others
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    1602 Display Problem

    Contrast set too high perhaps............ Can read MEASURE Cx OVER RANGE
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    RELAY Omron

    No, it's a DC relay coil. The internal core has a different structure to that of an AC device.
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    wireless dpdt for ceiling fan reversing switch

    Mains powered remote relay. Plenty on Ebay etc. Problem would be getting everything under the cover, plus any insurance cover after the fire would void your policy as the modification would not be approved or certified.
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    Transistor as a switch

    https://toshiba.semicon-storage.com/ap-en/semiconductor/knowledge/faq/mosfet_common/are-transistors-driven-by-current-or-voltage.html#:~:text=In%20this%20region%2C%20the%20collector,considerably%20varies%20with%20VCE. Basically, a bipolar transistor amplifies a small current entering the base...
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    Read out button presses of digital phone

    Does the same thing, possibly not "short" but a level low enough for the associated circuitry to recognise which button in the matrix has been pushed and for the circuit to "do it's thing".
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    Rectifier IRL2703

    Ebay has them from China.......and from UK.
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    I Want to Create a Revolutionary Table Fan!

    I think there's already a crank of sorts in there ........
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    I Want to Create a Revolutionary Table Fan!

    Best as mentioned, you go back and study some physics, then you might get some idea at least behind what you are proposing. There is no such thing as free lunch or free energy.
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    how to properly connect fingerthump potentiometer

    More like .......... because human hearing is logarithmic.
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    I Want to Create a Revolutionary Table Fan!

    There is currently one particular manufacturer claiming their ceiling exhaust fans are more efficient that the mainstream brands. We were never sucked into their claims but there were some of our customers who were. We installed them as per requirements and found they were not worth a cracker...
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    Explain the working of solar cell.

    Usual to do a search on Google as it will have been explained there many times and in detail. One example here.......
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    Hello - 1st Time Posting - Need Advice

    I think you could be right once again........ https://core-electronics.com.au/freetronics-freepixel-addressable-rgb-led-module.html
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    AC Power wiring to Light Bulb

    Exactly.
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    Help with an ESC schematic

    One would wonder why you would want to make your own as there are literally gazillions of them out there and at a far less cost than it would be for the bare mosfets.
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    Hello - 1st Time Posting - Need Advice

    How would you know it changed colour from white to yellow as you have your finger on it (momentary) As Martin says looks like a tactile switch but possibly one that is LED lit. More detail required, link to where you saw this for example(not some photo site, a spec site)
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