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Hello all, I am working on a project for my dad that finds the speed of a small model train (N Scale or 1:144), scales the speed, finds what the speed would be in real life and displays it on a 3 digit 7 segmented LED display. I have created two scripts provided below: one that works normally...

Hello, My dad has a model train set (N scale) and he wants to find out the scaled train speed. N scale has a size ratio of 1:144 and I found an equation to calculate the speed using 2 sets of infra red LEDs. I have found the task easy until I tried to display the scaled speed of the train on a...

Hi, I was going through my resistors to sort them and came across these: I don't remember how to read these old resistors, which side is which, or even the difference between these and the new resistors. I hope that anyone remembers these and can help me tell the values. I hope that these...

Hi all, I am building a small, 3 wheeled robot to take sensor readings, blink, make noise, etc. I have a remote controlled car that I have taken apart and I wanted to use the R/C circuitry to control it from afar. It works, and I am ready to connect it to my robot, but before I did, the motor...

Hello I have a remote from dick smiths (KT3065) and I was going to use it to control a small robot, but when I used the irin or infrain2 commands on my 20M2, it didn't read the button presses. The code for testing the infain2 and irin commands that I used are: start: infrain2 debug goto start...

I accidentally turned my computer screen into mobile phone screen. Does anyone know how to turn my screen back to the picaxe default screen? I have looked and I cannot find anywhere to change it. I changed it using the tab down the bottom of the screen. That tab is now missing. Please help...

Hello, I have a 20M2 picaxe and I need to know 3 things. 1. Can this particular chip do parallel tasks? 2. If so, how do I run two completely different tasks at once? 3. Can I set a variable on one parallel task, and have the other task read it (does each task have their own set of variables...

Hi, I have 3 relays all hooked up to a DC moter for direction, and turning it on and off. Only one relay works on the picaxe's power supply (regulated 5V). I am using 2 of the 1005 relays and one 1101 relay. If you look on google, they give you the wrong relay as these are just your typical...

Hello. I am trying to make a picaxe powered robot to do numerous different things like take temperature levels, light levels, etc. I am starting with the temperature taking. I have a 47K thermistor and I am going to put it in a voltage divider. I was wondering, what would the resistor in the...

Hi, I have a PICAXE 20m2 and I have a delicate problem. Besides the script that the chip is running, is there a way to have variables stay the same when I turn the power to the chip off without changing the script, like a save in a computer game? Thanks.

Hello there I am making a computer from picaxe but dont know how or where to start please help

Do you mean to use the 20m2 to trigger a bc547 transistor or similar to supply the 12 volts, like this?

I am creating a model railway crossing using a 20m2, but the LED's act strangely. I have a circuit that correctly receives data and pin b.0 can push 2 led's, but when I tried the same on b.1, it can only push one led. If I try to run 2 on b.1, it ignores the first LED, even though the 2 led's...

Hi. I have a 20m2 picaxe and I am making a level crossing for model trains using the 20M2, 4 ldrs, 2 LEDs and some resistors. I have the circuit working with 3 AA batteries and 2 LDRs but I can't get more than 2 LDRs to work properly. When I add more than two ldrs the 20m2 acts oddly and...