The simple sensor circuit described by Ng Beng Kiat seems to give the best results.On his web site (http://www.np.edu.sg/alpha/nbk/) Beng Kiat describes Min4, one of his recent mice. In there is a PDF with schematics for the mouse. The sensor circuit for Primus is essentially the same except for a…
The Allegro SLA7062M stepper driver is a excellent choice for a versatile and robust stepper motor driver.This device will let you drive a unipolar stepper motor at voltages up to 46 Volts and 3A per phase. It employs an internal PWM control of motor current which is can be set…
The Sanyo Denki 103H546 is a completely standard stepper motor in a size 17 frame. The mounting face is tapped with four conveniently located holes tapped for M3 screws.All we need is a simple way to fix the motor to the base and main circuit board. For that, some kind…
For general ease of construction and simplicity for the new mouse builder, stepper motors are hard to beat. They are also generally large and heavy. A bit of a search soon turns up a variety of possible motors for Primus.Ideally, we would have a small motor to allow the construction…
The maze has dimensions fixed by the competition rules. Further, the mouse is limited to a maximum size of 250mm x 250mm. When the competition was devised, this was a fairly significant constraint. in these days of tiny processors with everything on board and handy, small, batteries, it makes sense,…
Some time ago, I described a simple stepper based micromouse chassis that was to form the basis for an open design for the beginner. Well, After a long gestation period, I think I am about ready to start on that.The chassis will be pretty much as described at Minos06 with…
I was having a browse through the book ‘Programming 16-bit Microcontrollers in C. Learning to Fly the PIC24‘ by Lucio Di Jasio.Leaving aside for now the tendency for authors to use overlong titles, there seems to me some interesting stuff in there. Early on there is a bit about what happens…
ROBOtic’07 will be held on Saturday 24th November 2007 The UK Micromouse contest 2008 will be held on Saturday 28th June 2008 Twitter Facebook Google Reddit Email
While testing out a new (to me) video search engine, I came across a Youtube video of a micromouse built from the new Lego NXT kit. Slow, to be sure, but convincing nonetheless. Have a look: