Recent content by hnorwood

  1. H

    A Wizard's staff has a knob on the end...

    Thank you! The layout hasn't been out since November 2019 as all the model railway exhibitions were cancelled at the start of the "inconvenience". However things are looking up - hope to be out soon...
  2. H

    A Wizard's staff has a knob on the end...

    I recently painted up a wizard I had bought from a wargaming supplier; to make him more in keeping with the Discworld theme of my model railway layout, I gave him a hat, removed his sword, and added some glitter to both robe and hat. I then wondered if I could replace the knob on the end of his...
  3. H

    A model broomstick driver

    One of my pastimes is working on and exhibiting my model railway "Angst-Lesspork", which is a tribute to the Discworld books of the late Sir Terry Pratchett. The witch on her on her broomstick going up and down is always a crowd-pleaser. However up to date, it relies on the operator having a...
  4. H

    Servo twitching question

    Hello. I am investigating using a servo, and I have breadboarded a simple circuit on the AX091 development board. I have programmed a 08M2 so that depending on a couple of switches the servo drives to one position and stays there, or drives to another and stays there. Unfortunately, the servo...
  5. H

    Odd look to forum

    I can't find where else to post a query about this forum, but occasionally when I access the forum. it appears like the attached photo I am using Firefox 41.0.2 on W7/64bit. This problem has occurred in the past as well. At the moment the forum appears on my machine as it should
  6. H

    A PWM train controller with H-bridge output

    A model train controller using pulse-width modulation for speed control and an H-bridge output to control direction Following a discussion on the ngrm-online forum, I decided to look at modifying my picAXE-based pwm train controller so that the picAXE controls the direction as well as the...
  7. H

    A Pulse-width modulation controller for a model railway

    I thought I should post my first picAXE project here. I had thought for a long time about a fully-digital train controller, but was put off by the large number of discrete logic chips needed, until someone suggested using a picAXE. The device uses a rotary encoder as the input (the control...
  8. H

    Query regarding paralle tasks and kbin

    Just a little update on the semaphore tower: The arms are now installed, Here is a short video clip. Once again, please ignore the date/time stamp
  9. H

    Query regarding paralle tasks and kbin

    Hello, I'm on my second project using these devices. I have a circuit that takes ps/2 keyboard input and drives a small two-arm semaphore. Currently, it has to wait until one character has been displayed before it will accept another keypress, as the manual says that processing stops while the...
Top