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Hi Benson. Good Point. I am considering re-using variables in each subroutine, but it will take time. Thanks Ax

Well, a lot of progress has been made as I now understand the variables and the limited number of them with my IC. Further, I understand how the temperature sensor provides 12 bit data, while the pickaxe words are 16 bit. Now, I face the challenge of converting to decimal degrees by using the...

Well folks, I've gone back to basics and read quickly through all of the manuals and picked out the relevant bits and now I have progress to report: * I have written and tested a small program that converts values in a word variable into real temperatures in degrees accurate to 0.25. I've put...

Hi All, So much information and so many issues arising. So here we go: Firstly, I like my AXE110P Datalogger, and I use it occasionally to measure room ambient temperature every half hour for 24 hours. I then put the readings into a spreadsheet which compares them with ambient temperatures...

Continuing on from whatever happened then,: * Thanks for your reply. If you read my reply to Ibenson, you will see that this is all way beyond me at the moment as I don't understand the language. I hope that this ever expanding sea of mystery will suddenly gel into an understanding. Axminster

Continuing on from whatever happened then,: * You read temperature from C.1 into w6, which I take to be a 2 byte word, but then you never refer to it again * you make b3= b2*2+78 why? Where can I get instructions on how to interpret this? * if b2 is more than 24 you do some more interesting...

Sorry but the more I see, the less I understand. I loaded your little program into my editor and simulated it to find that it outputs a series of numbers which didn't really make sense as i didn't know which temperatures they were meant to represent. I realise that I need to go back to basics...

Hi All, Thanks for the advice. Your information has alerted me to a number of realisations. Firstly, I am using an old 18x chip in an old datalogger. Secondly, I need to study variables and storage a bit more before proceeding further, and thirdly, I need to understand how to convert the result...

Hi All, I am new to programming the Picaxe, but some memories of basic still exist. The problem I'm having is: what variables do I have available to me for the Symbol command. I've looked at existing programs such as the Datalogger and seen the variables used there, but if I introduce any...

Thanks all. I am convinced that my old chip cannot do the one wire thing, but it does allow me to connect 4 temperature sensors and use the READTEMP command, which is good enough for what I want to do. I may decide to play with one wire in the future as it sounds interesting. Ax

I have got an old AXE 110P datalogger which still works perfectly and performs temperature tracking for me and is an invaluable device. However, I now need to measure 4 temperatures on a regular basis, and I am trying to find out if the 18X chip can preform the One Wire functions so that all...