Recent content by depeet

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    Metronome First sub code reduces volume output

    You could try a LM386.
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    Driving LED

    Altough not completely correct, you don't measure the full 5Volt on a PWM pin. You are actually measuring an average voltage that would depend on the PWM-rate. If you connect a LED in serie with a resistance, you will only measure the drop voltage over the LED. This voltage depends on the...
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    Electronics - help needed please

    Another possibility is to use a step-down converter with a shutdown input. Another advantage is that it is more efficient. The LM7805 always need to dissipate power in the form of heat.
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    Electronics - help needed please

    Is your button normally open or normally closed? If normally closed, the GND-pin of your regulator will always be connected to 0 volt and thus always active. Why don't you use a MOSFET after your regulator, or is it your purpose to disable the LM7805 all together? Anyway, it is not recommended...
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    2 picaxe 1 supply

    AS Hippy already mentioned, from 24VDC to 5VDC is a serious voltagedrop. The LM7805 would will get heated up considerably. Its maximum current is around 1.5 Ampere. The maximum input voltage is 25VDC. In a previous project my regulator was heating up the enclosure is was mounted in. I replaced...
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    Will the picaxe editor run on Linux?

    I downloaded Win10 from the Microsoftsite and when installed it on a new harddisk. I registered the program with my mailaccount at for free and it still works like a charme. I like to install from zero rather then to "upgrade" from a previous version. To get a free copy, click on...
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    Position sensing

    When I was a teenager (around the eighties), I divided the tracks in block with plastic rail connectors as was described in a book by Elektor. Each block had a sensingcircuit that signaled a central unit. In those days, it took a lot of TTL IC's and finally a communication with my Commodore. If...
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    Measuring small voltages with 20x2

    This was the approach I ended up with. And indeed multiplying with 500 gives more then 65535 (word). Ingelwood solved my stupid problem
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    Measuring small voltages with 20x2

    Thanks, it was really simple. For some reason (don't ask me why) I divided by 1023 instead of 10. I did it the right why earlier this week but the values where way of what was expected and started fooling with the code. Apparantly the poweradapter wasn't stable because it seems to work better...
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    Measuring small voltages with 20x2

    I would like to measure small voltages without the need of an OpAmp. I read that READADC10 has a resolution of 1023 bits and I calculated that 5Volt divided by 1023 is about 4,9mV. Whatever I tried, I could only display 1, 2, 3, 4 or 5 volt. Is there any way to measure the smallest voltages and...
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    Ms Surface pro not programming

    It is not clear in the picture, but are your black wires on the left connected to the black wire of your power supply like I showed in the picture with a blue line?
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    A Darlington-pair isn't realy necessary. A transistor with a resistor works as well. Perhaps this article below would clear things out.
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    My Analogue inputs (Pots) have very fine range of adjustment.

    I could be wrong, but I think that you can not make a variable out of the outpinsB like you did with Symbol LedPort = outpinsB Since you see the correct values in the terminal, the potentiometers should work correctly. In your case routine, I would go this way and see if this resolves your...
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    Serial communications picaxe to picaxe IDE

    I want to read the contents of b0 till b5, or w0 till w3, and send them to the Picaxe IDE. (terminal window) I thought about this way. Sertxd ("word 1", b1, b0, CR, LF) Sertxd ("word 2", b3, b2, CR, LF) Sertxd ("word 3", b5, b4, CR, LF) Is there a more efficient way with, for example, @bptr...
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    Accelerometer help needed for A-Level project!

    I've read the datasheet and created a excel-sheet. Just insert 1 or 0 for bits D7 to D0 and the column VALUE presents the needed value to write to appropiate register. The datasheet (page 13) mentions that it is recommended to configure the device in standby mode and then set bit D3 of register...