Recent content by danners430

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    Displays for 2019

    weeeeeellll....... Being a railway modeller, I am currently designing a servo operated semaphore system - semaphore railway signals that is! :LOL: I've come across a rather neat LED matrix driver which I'm now using wherever I can - the HT1632C. There is a thread on here somewhere which...
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    multitasking

    It might be easier to use a separate 08M2 chip (they're not really power hungry, large or expensive, at least by most standards) to play the tone/tune, leaving the 28X1 to "focus" on driving the motors. if you configure the 08M2 to use the hardware serial port in background receive mode...
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    Controlling WS2812 5050 RGB LED

    If I might make a suggestion - if you end up getting stuck in your investigations to addressable LEDs, an alternative which is cheap, but involves more wiring, could be to use the HT1632C LED matrix controller, or a similar device - they've been covered on here before, and let you drive silly...
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    Controlling WS2812 5050 RGB LED

    Take a look at this - can't confirm that it works or not, as I haven't personally tested it. https://picaxeforum.co.uk/threads/picaxe-ws2811-rgb-led-controller.23174/
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    Polarity Detection

    That would work perfectly - I'm guessing I could also use the above circuit with the LED driver, as D01 would protect it from the reverse voltage?
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    Polarity Detection

    It has to be said, I'm not interested as such in detecting the amplitude or anything - the entire circuit won't work until at least 5V (allowing for the voltage overhead for my 3.3V regulator), so below 1.2V isn't too much of a problem! And remember that at the 12-20V range, I'm going to he...
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    Polarity Detection

    Sorry, I meant diode D2 in my schematic :-) Aye, that was the original plan - however would that work fine with lower voltages such that you find at analogue 0-12V levels, as well as the high frequency 12-20V DCC signals?
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    Polarity Detection

    Would the diode not protect the optocoupler branch from reverse voltage?
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    Polarity Detection

    Haud on, I think I'm having a classic Tech Support moment - soon as I posted this I had a eureka moment... could anyone confirm if this would work? This is a diagram of my DCC input (the connection between the track and the microcontroller, sensing the DCC signal)... as the optocoupler is, by...
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    Polarity Detection

    Hey guys, Is there a way to detect polarity? I'm designing a custom DCC function decoder (yes, WestAust...), which is going perfectly fine... except now I've realised I might wanna see if I can make it work on DC too. A little basic background - DCC is a communication protocol for model...
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    Using 2-lead bi-colour LEDs with PICAXE

    That does make a lot of sense, Hippy... :-) I suspect it's just my systems engineering mindset coming through into my hobby - too much work and not enough play 😂
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    Using 2-lead bi-colour LEDs with PICAXE

    I think the easiest way to describe my (completely bizarre) mindset is I like to have "dedicated" solutions - so a central "processor" - a microcontroller etc. - which does what it's designed to do, process & controll; and specialised "independent" chips, such as the HT1632C, doing specifically...
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    Using 2-lead bi-colour LEDs with PICAXE

    I know, I know... Like I said, I'm wierd - for some reason my brain isn't a fan of the multiple PICAXE solution. Perhaps it's because I'm "wasting" processing power in a certain way...? It's a very good idea, and one I would use if it came to it - for some reason I just can't seem to "like" it...
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    Using 2-lead bi-colour LEDs with PICAXE

    Like I said - I'm a wierd twit :LOL: It's just me, for some reason I'm not a fan of distributed processing. Please don't ask why - I'll happily do it if nothing else works, but I always try and find another solution... just my wierd brain!
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    Using 2-lead bi-colour LEDs with PICAXE

    I had feared as much... multiple modules would obviously work well, it would just be messy (in my mind - I'm a wierd character!)... I'll see what comes of the offer of custom 3D-printed mounts for the 3-lead LEDs... if that works I can go back to my original plan to use a bog-standard LED matrix...
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