Recent content by Jon_

Ok, so i have spent an afternoon trying to work this out and I am sure I have overlooked something really obvious....but can't see it. So I have set up tx and rx as said in the Pi wiki. Then I wrote this python script: import serial import time port = serial.Serial("/dev/ttyAMA0"...

Hi All, I am a local scout leader and our senior scouts are trying to assemble a weather balloon to fly up to near space, hopefully taking lots of pictures, and then come back down to collect. We are already thinking of adding simple picaxe circuit to take temperature measurements but we also...

Hi All, I am having severe problems trying to get my head around how this chip is working, I know it shouldn't be that hard!! Eventually I will have two temperature sensor which I wish to record the temp at certain time intervals. After which, I wish to retrieve the data, simply in the...

Hi, This is sort of picaxe related and I am sure it will help future users who are not sure, if someone can answer the question ;-) I have been looking at a number of different radio transmitters and receivers from a number of different websites, both AM and FM, UK and non-UK. I am aware that...

The following code works fine for MIDI but causes a problem when i want another program to be running and then listen when MIDI starts talking: #picaxe 40X1 HserSetup B31250_4, %001 Do If ptr <> hSerPtr Then b0 = @ptrInc b1 = b0 / $10 + "0" : If b1 > "9" Then : b1 = b1 + 7 : End If...

I am using an LCD from output pin0 but i can't figure out what is wrong with the code. I am using the default code given in the picaxe manual but i have changed the pin numbers to correspond to correct pins when starting from 0. However, something tells me that i need to change the masking as...

Hi, I am trying to build a circuit which will test and fire pyro igniters (i know picaxe is not seen as a suitable micrprocessor for this type of job but this is not what i want to discuss here!) when testing the mosfet is not 'switched' (in search for a better word) but the picaxe is using...

I am trying to sent a pattern of 3 bytes via serial, i have the following code written: master files: #picaxe 40X1 serout 7, N2400, ($01, $80, $01) 'send message receiving file: #picaxe 28X1 setint 0,%00000100 'interrupt on pin2 when low main: goto main interrupt: serin 2, N2400, b7...

Hi All, I have a problem, i have used up all my outputs bar one, and i need to control two enable inputs on another chip. What i really need is a chip that takes one control signal and switches between to outputs, so i can use both high and low of my last output pin? Thanks,

Hi All, This subject has been featured quite heavily on various posts in this forum but i am posting about it again for clarification. I have designed a circuit that is triggered by certain inputs, one being a computer input, but i now need it to trigger when there is a MIDI input. oh dear...