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I'm refreshing a few old picaxe projects and robots in preparation for http://www.robotchallenge.org/ in a few months time. Whilst digging around for standard AA battery performance I found http://www.batteryshowdown.com/ Bitbox produced some test kit for batteries and ran "high" and "low"...

It's been ages since I first saw this technique, just got around to an application: This is pad has two strings of switches so that you can operate both side of the controller together. I'm really pleased with the results even if the board construction could have been better. that's isolation...

Hi, Just considering a (surface mount) 40x2 for a new project and would utilise the internal resonator to save on a little PCB space. I didn't see any pointers on unused resonator pins in the manual, I'm guessing tied rather than floating pins would be a good idea. Is this the right thing to...

Hi, I'm feeling frustrated with this, but certain it's a mistake I've made but not sure how! I'm equally certain that this isn't a labelling problem, I've not bought any blank 12F629s (08) or 12F683s (08M) and I've not had these anywhere near my PICkit (that was a 12F675 I used there) but I...

I crashed a computer a while ago and have started to reconstruct some code for a few robots, this code was written by Technical a few years back but has been very useful... While it appears back in Archive 21 I thought it was worth dropping in the code snippets... peek $8E,b0 if bit1 = 0 then...

I've been playing with MiniSumo robots for a while, this latest one fits within the Formula MiniSumo rules and uses this 18X Control Board. The board give access to all I/O, reset and programming circuitry, on additional button and two LED outputs, 1A low drop out regulator and to fit within...

Sumovore is the Solarbotics MiniSumo Kit, there have been a number of "brain boards" to control this robot but I've just spotted that they now have a PICAXE variation with sample code/flowcharts available. http://www.solarbotics.com/products/k_sv-picaxe/ It's supplied with a 28X1 but the...

Is any one here off to this event in Birmingham tomorrow? http://www.tic.ac.uk/micromouse/ROBOtic08.asp Last year was a great event, an interesting mix of robotic competitions. If I get my tweaking finished to night I'll be running two of my picaxe based mini-sumo (both based on 18X and both...

I stumbled upon this the other day, while initially developed for R/C Model Aircraft this small video camera could make for an interesting PICaxe add-on. http://www.flycamone2.com/index.php?id=20&L=3 This devices is charged by USB, records with a number of modes for still and video to...

I've an old v2 CHI035 High Power Project Board, it's been sitting on the shelf waiting a simple robotic project, looking at the instructions and working with the board I think the dual power supply documentation is in error. From Appendix D When this is done Pin 8 remains connected to both V+...

I've just fitted some new cycles lights that are powered by an interesting dynamo. They have a magnet inside a coil that will be spun by interaction with a wheel mounted magnet, details can be seen at www.freelights.co.uk Drag is not percepable, unlike conventional dynamo, and the resulting...

May we add calendar events that might be of interest to picaxe users? I was thinking of public events such as robot competitions or club meetings that might allow picaxe users to interact face to face. regards, colin

I'm always looking for ways of making my projects cheaper... the PICaxe was an excellent step, I still use PICs from time to time (the PICkit 2 is great) but not so easy to explain in terms of programming... It seem that there are a lot of expensive solutions out there to sensor problems but...