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ianjeffery

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Everything posted by ianjeffery

  1. ianjeffery
    I just bought a few of those boards, and one with a 128x64 pixel lcd display - they are actually great and simplify the whole input and screen output greatly.
  2. ianjeffery
    Just thought I would share this with you ... A customer is using one of my Turntable Kits , but with a twist - as a Traverser...
  3. ianjeffery
    wowsers thats small! whats the decoder like in operation ?
  4. ianjeffery
    Can i just ask, for anyone who has one..... how did you fit your dcc decoder chip ?
  5. ianjeffery
    Ray - How funny I am just working on a DC version using a screen and keypad :-)
  6. ianjeffery
    its actually the decoders themselves doing the shuffling rather than the controller. The controller is just looking out for the change in current.
  7. ianjeffery
    this topic is really interesting as im currently looking at this sort of stuff right now for my diy accessory decoders... ( www.dccinterface.com ) I have to cause a 60mA drain for 6ms to let the controller know the CV write/read has been comfirmed by the decoder.... for ages i wondered why my trains would move when reading and writing cv values, and it was only after reading the spec did i realise the decoder is generating the 60mA drain by moving the motor - very clever!
  8. ianjeffery
    to be loved by anyone..........
  9. ianjeffery
    yes, i think i did get the last one - sorry :-( ( :-) ) i went for a taller one as i think it is the same size as the one i already have.
  10. ianjeffery
    and bought one to test with. might make my turn table EVEN smoother !
  11. ianjeffery
    Just had a look on line... https://www.ebay.co.uk/itm/0-9deg-Nema-17-Stepper-Motor-Bipolar-2A-46Ncm-65oz-in-42x42x48mm-4-wires-DIY-CNC/121681232839?hash=item1c54c443c7:g:OIMAAOSwpDdVfnCp these look really interesting.....
  12. ianjeffery
    Here is mine - I received it in the post yesterday and was running her for many hours last night. I'm really chuffed.
  13. ianjeffery
    :-)
  14. ianjeffery
    you might be better off using this http://www.instructables.com/id/Arduino-Nano-I2C-Matrix-Keypad-With-PCF8574PCF8574/ it uses the I2C interface and will free up ALOT of pins for other stuff. Then you just read in the key presses. you could use 1 * for one direction, and 1# for the opposite direction......
  15. ianjeffery
    This is what i do too.... I number each train from 4 upwards and print out a sheet of paper listing the numbers and trains.
  16. ianjeffery
    All, Thought i would give you an update on what i have been working on in my spare time... its a virtual signal box, that can handle a large number of points / signals / light etc... it can handle chains of points, ideal for cross overs etc. it has a screen and a key pad for manual operation, but also a dcc interface board ( www.dccinterface.com ) so i can operate them from my NCE powercab... I dismantled it to show two servos moving... what do you think?
  17. ianjeffery
    mainly the powering down of the motor.... just as you have done in your example with the adafruit.
  18. ianjeffery
    Also, I have had help from Alex Shepherd who runs Nmrc.org ( also has written a DCC library ) to add some nice touches.
  19. ianjeffery
    Just thought i would update everyone on a work in progress.... I'm experimenting with a complete accessory decoder... its a work in progress, and a prototype board, but things are progressing well..
  20. ianjeffery
    ordering one from the website is a very good idea - you therefore know 100% its going to work. Plus Andrew is a really helpful guy.
  21. ianjeffery
    Wow! that looks great! Good to see my board working great. What microstep setting have you got it on at the moment?
  22. ianjeffery
    i took my bt home hub psu and cut the plug off :-)
  23. ianjeffery
    This is from their website... The SPROG 3 should be used with a power supply of 12 - 18 Volts capable of supplying at least 2.5 Amp, otherwise the over current protection feature will not operate correctly. so i think you can probably use a power supply from a number of places.
  24. ianjeffery
    just to let you know, im using a BT homehub power adaptor that puts out 12v 2amp dc. i think you could use any power adaptor that outputs between 12v and 15v, and up to 3amps. Mine is low power as its just used for my programming track.
  25. ianjeffery
    i got my psu with the sprog when i bought it. I am at work right now but i can take a look at its output rating later on if that helps.
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