Poundland Universal Remote Control

I’ve been experimenting with the infra-red input commands on the PICAXE for some simple remote control Lego robots. There is an official remote control for the PICAXE – in an eye-catching blue case, but for economy I’ve bought a bunch of Poundland universal remote controls.

They don’t give the same hardwearing impression that the official ones give – the cases are a little more flimsy, but they do seem more than adequate to remote control a PICAXE and can therefore add a whole new dimension to PICAXE circuits. An infra-red receiver is an easy thing to add and it means that one input can effectively pretend to be many switches – all present remotely on the handset.

To program the remote, press and hold the TV remote for 5 seconds. The LED will light at this point. Type in the code 0495. When this is completed, the LED will go out and the remote is ready to use.

The command to receive the remote signals is to use:

irin [100],3,b0

Assuming that you’re using input 3. I often use the 08M2 Picaxe, and this is fine. The value is dumped into byte variable b0.

Often I use the following program:

    irin [100],3,b0
    goto main

to see the effect of pressing different buttons in the debug window.

I’ve discovered the following codes  (File: PoundlandUniversalRemote as a PDF file):



Scratch, Python and PICAXE conversion

Python, Scratch and PICAXE conversion for simple commands and I/O

Python, Scratch and PICAXE conversion for simple commands and I/O

I often find that I’m having to jump around between Scratch, Python and PICAXE Basic. It’s quite easy to get tangled with the different structures – I keep putting in a # for a PICAXE comment, and the odd colon here and there. Colons in PICAXE are used for labels, not at the end of looping and conditional branches. So… here’s a quick chart which also covers some GPIO stuff.

Scratch-PICAXE Conversion

Scratch -to- Python Conversion

Scratch to Python conversion sheet - click for a PDF file

Scratch to Python conversion sheet – click for a PDF file

Just as you get used to one programming language, the goalposts change and you need another one! This little guide sheet, on two A4 pages, covers the basics of using variables, decisions, lists and loops.

It has been written for Python 3 (the most commonly encountered difference is the need to put brackets around bits that need printing).

I’m going to keep a printed version with me as I’m sure it’ll be useful for explaining the different ways of constructing decisions and loops.

If I get the time, I’ll create pages 3 & 4 – perhaps to cover using GPIO within Scratch and Python.

Python-Scratch Conversion