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  • doctek commented on doctek's instructable Build a Dual Extruder for 3D Printing1 week ago
    Build a Dual Extruder for 3D Printing

    I don't use repetier so I can't really help you. Maybe try the RepRap site?

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  • Super Simple Electrocardiogram (ECG) Circuit

    Great 'Ible! I have one question: In Step 8 you say, "Reasons for the deviations will be explained in Step 9."I've read Step 9 closely and don't see any reasons. What am I missing?Thanks.

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  • doctek commented on doctek's instructable Cheap, One Chip Arduino1 month ago
    Cheap, One Chip Arduino

    Thanks for your interest! Please try the latest version (it's 1.6.12 now, I think) and see if it works. I haven't tried using earlier versions, so I can't help you there.

    Great question! To make a truly tiny one-chip Arduino, the tqfp is the way to go. However, the software side should be the same and this Instructable should guide you. But, of course, the hardware side is a different matter. You need to figure out how to get access to the necessary pins so the part can be programmed. Typically, the 6-pin programming header is used for this purpose. Then you need to decide how many I/O pins you want to have access to for your target project or projects. Lots of details to think through, but it's a great learning experience. Go for it!

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  • doctek commented on doctek's instructable I2C Bus for ATtiny and ATmega2 months ago
    I2C Bus for ATtiny and ATmega

    Thanks for your interest in this project! Let's see if I can help you.Note that the ATTINY85 has the same USI as the ATTINY2313, so the code should work with it. What problems are you having and what have you tried?Note that there is now support for the ATTINY85 in Arduino. That might be a simple way to get things going and experiment. Have a look here:http://highlowtech.org/?p=1695HTH!

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  • doctek commented on doctek's instructable Cheap, One Chip Arduino2 months ago
    Cheap, One Chip Arduino

    Thanks for your interest in 328/Duino. Note that you can get 328P chips from the same Chinese sources for a bit less than the Pro Mini. The Pro Mini is nearly twice as wide as the 328P, so might be large for some projects. But as you say, we're rapidly losing our hardware skills to the Chinese. I personally like to be close to the hardware I use and know its strengths and weaknesses. I hope there are others like me. That's who this Instructable is for, after all.

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  • doctek commented on doctek's instructable Cheap, One Chip Arduino3 months ago
    Cheap, One Chip Arduino

    Should say "just as detailed in the figure for Step 3." Sorry.

    Thanks for your interest in 328/Duino! Did you follow the instructions in Step 3 of this Instructable? When I follow those instructions and check the Tools -> Board drop down, I find the ATMEGA328... just as detailed above.

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  • doctek commented on doctek's instructable Build a Dual Extruder for 3D Printing5 months ago
    Build a Dual Extruder for 3D Printing

    Glad my work can help you.Good luck with your project!

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