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  • MattW213's instructable LED Pit Board's weekly stats: 7 months ago
    • LED Pit Board
      1,302 views
      13 favorites
      0 comments
  • MattW213 commented on MattW213's instructable Arduino Binary Clock - 3D Printed7 months ago
    Arduino Binary Clock - 3D Printed

    Great to see you made one. looks great

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  • MattW213 posted an instructable LED Pit Board7 months ago
  • MattW213 commented on MattW213's instructable Arduino Binary Clock - 3D Printed7 months ago
    Arduino Binary Clock - 3D Printed

    Looks great, I'm glad you made it so well. I've altered the time loading program slightly as I discovered there was about a 30 delay in reading the computer clock and the time finally shown by the binary clock once it was running the final code. It seems to take about 15-18 seconds to compile and load each program. The adjusted version has taken into account this 35ish seconds. You'd need to run the serial monitor to check if the delay exists or not on your version. If it does use the new time loading code and adjust the delay amount to match your actual.Again great build - really pleased this inspired you.

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  • MattW213 commented on MattW213's instructable Arduino Binary Clock - 3D Printed9 months ago
    Arduino Binary Clock - 3D Printed

    Hi ronkasper,The 3D files are in the instructable in step 3. You can directly download them from there. If you decide to make something keep us posted, it would be good to see other ideas / versions.

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  • MattW213's instructable Arduino Binary Clock - 3D Printed's weekly stats: 9 months ago
    • Arduino Binary Clock - 3D Printed
      21,036 views
      137 favorites
      14 comments
  • MattW213 commented on MattW213's instructable Arduino Binary Clock - 3D Printed9 months ago
    Arduino Binary Clock - 3D Printed

    It's a good suggestion, I considered this early on and nearly used them. It could be a good alternative to basic single colour LED's and as you say the colours could be changed depending on temperature etc or a different colour for each column maybe. One thing to consider with these single Wire RGB LED's is the power consumption. A single LED showing a White colour could draw around 60mA (I'm sure there are lower power versions). At certain times 8 LED's could be on and this would draw 480mA. Add that to the current draw of the other modules and you're around 550mA (max). Not a huge problem for the Arduino but some outlets (including computer ports) have a maximum 500mA output. It would cause problems though if we wanted to run it from an alternative power supply as the Arduino's 5v reg...

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    It's a good suggestion, I considered this early on and nearly used them. It could be a good alternative to basic single colour LED's and as you say the colours could be changed depending on temperature etc or a different colour for each column maybe. One thing to consider with these single Wire RGB LED's is the power consumption. A single LED showing a White colour could draw around 60mA (I'm sure there are lower power versions). At certain times 8 LED's could be on and this would draw 480mA. Add that to the current draw of the other modules and you're around 550mA (max). Not a huge problem for the Arduino but some outlets (including computer ports) have a maximum 500mA output. It would cause problems though if we wanted to run it from an alternative power supply as the Arduino's 5v regulator maybe over stressed and damaged.

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  • MattW213 commented on MattW213's instructable Arduino Binary Clock - 3D Printed9 months ago
    Arduino Binary Clock - 3D Printed

    You are right the resistors could be different values to the ones I used. It would really depend on the forward voltage of the LED's used. Red / Amber LED's generally have lower forward voltages so would use higher resistors. Just be aware of the total current draw on the Arduino and the maximum on each pin. In my case I'm also reducing the brightness further with a PWM signal from Pins 9, 10 & 11. In the above photo the LED's are set at 15 when the maximum brightness would be 255.

    I thought about this for some time when designing this. I wanted it to be quick and easy to read and I would have needed to create an LED matrix to ensure I had enough pins on the Arduino to run all of the LED's. And the power consumption would have been too high as well. I decided to omit the AM/PM indicator as its only really needed if you want to set an alarm, otherwise you generally know if its am or pm. Most wrist watches (non digital) don't indicate AM or PM either and it keeps things simpler.

    Hi, Thanks. The RTC module already has a back up battery - a CR2032 which will last about 4 to 5 years. When the power is lost the screen and the LED's go out but the clock is still ticking. When the power is returned the clock shows the correct time. The only time when this doesn't work is when only the setting program has been loaded. If the clock is using the 'normal' sketch then power interuptions have no effect on the clock. The switch for the DST change is a great idea. I didn't think of that. There's even room for it in the base of the clock. Might be adding that soon. Thanks

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  • MattW213 commented on MattW213's instructable Arduino Binary Clock - 3D Printed10 months ago