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  1. J

    How best to breadboard...

    Hi Folks, How would you recommend mounting these modules so they're better suited for breadboarding (and final soldering to a normal single-sided PCB)? http://www.maplin.co.uk/media/pdfs/A58JN%20Datasheet.pdf John.
  2. J

    Progress of a Pause command

    Is there a method (register that can be PEEKed, perhaps) to see the current 'progress' of a Pause command? The situation I'm interested in, is as follows: If an interrupt occurs during a Pause command, the Pause is terminated and the rest of the pause is lost. If it were possible to read in...
  3. J

    Identify Picaxe before downloading?

    Reading the thread about programming multiple Picaxes in parallel made me think of a "problem" I had recently: I had three 18M2 chips all with different programs running but, when I made a change to one, I had to change them all (wireless serin/serout). It meant a lot of download plug...
  4. J

    Average wind direction?

    Hi Folks, The weather station that many of you helped me with one way or another is up and running but the wind direction is erratic, to say the least. I thought about taking the average of a few reading but have hit a problem: If I take two readings which are (say) 200 and 210, the average...
  5. J

    A Picaxe Weather Station

    Hi Folks, The Picaxe Weather Station that many of you have helped me put together is now up and running except for the rain gauge (trying to decide a suitable location). The wind direction seems a bit erratic, to say the least, but it may be possible to even that out in the software. In...
  6. J

    Silicone Sealer

    You sometimes see larger components - typically electrolytic capacitors - "glued" to PCBs with a blob of sealer to stop them vibrating. Would ordinary bathroom type silicone sealant be ok for this or is it special stuff specially formulated for the job? Thanks, John.
  7. J

    SETINT with 1 input OR another

    Hi, Are there any tricks to simulate 'SETINT OR input,mask' with an 08M ? I need a Picaxe which does virtually nothing except loop waiting for one of two interrupts. One interrupt is from an external switch and simply increments a variable and the second is from another Picaxe requesting a...
  8. J

    Feeling the pressure!

    While I decide what's wrong with my HP03 pressure circuit, I decided to try an MPX4115A instead. It seems to be working but, as the volatge swing is so small at the pressures we're interested in, I added an amplifier using a AD623 but I'm not having much luck with this either! I'd hoped the...
  9. J

    Problem with HP03 sensor

    I've finally got my HP03 sensor from Futurlec but I'm having a bit of a problem with the reading it's returning. I've followed WestAust55's tutorial here: http://www.picaxeforum.co.uk/showthread.php?t=14661 . I'm using the code shown in the tutorial verbatim with an 18M2. (I think the code has...
  10. J

    Ds1307 Rtc

    The datasheet for the AXE033 LCD says that the RTC option provides a programmable alarm output. But the datasheet for the DS1307 itself doesn't seem to have an 'dedicated' alarm output pin. I was thinking of using the DS1307 in a separate, stand-alone, application that requires accurate 1 hour...
  11. J

    UK shipping times from Futurlec

    I ordered an HP03 pressure module from Futurelec and received an email on the 9th Jan to say it's been shipped and to allow 5 - 10 days. It hasn't arrived yet but, when I queried it, they just replied that it was shipped on the 9th by my selected delivery method. Knowing me, I'm assuming that...
  12. J

    Austria Microsystems AS5040

    Hi Folks, I've been having a play with the AS5040 Magnetic Rotary Encoder - hence my obssesion with round magnets and 360 degree maths :) I'm sure it's basic stuff to most of you guys but I thought you may like to take a look at what I found (attached): [I've just noticed that the graph...
  13. J

    USB woes!

    Every so often the Programming/Editor gives me an error message that the (usb) serial port is already in use. Usually a bit of faffing about and rebooting sorts it but not this time. I've spent the best part of this afternoon uninstalling/reinstalling the PE and its drivers and I still get the...
  14. J

    Struggling with basic maths!

    Hi Guys, Maths isn't my strong point so I'd be grateful if someone could talk me through this. I'm reading a readadc10 and trying to convert the result into 0 to 359 do readadc10 C.1, w0 w1 = 360 / 32 * w0 / 32 ; saw that trick somewhere :) debug pause 100 loop Although w0 reaches...
  15. J

    Second attempt

    Hi All, After my first useless attempt at shielding my temperature and humidity sensors from the weather, I've had a second try! http://vwlowen.co.uk/picaxe/stevenson-screen/stevenson-screen.htm John.
  16. J

    Sure compass module

    Hi All, I've been following this old thread but it seemed to end without coming to any conclusion. I've managed to communicate with one of these modules but I can't get much sense out of the returned values. Although the low byte of each axis varies between 0 and 255 (twice in a revolution)...
  17. J

    Looking for a round magnet

    Hi All, I'm looking for a (preferably) UK supplier for a 'button magnet' about 3mm thick and 6mm diameter with the N-S poles across the diameter. I think the common ones have the poles through their thickness. Page 23 here...
  18. J

    What does 'debug' do?

    I've got a mystery with the 'debug' command! Admittedly, I'm not using a "standard issue" serial LCD display but I still can't fathom what's happening here. It is a serial LCD with the same basic dispaly module as the standard issue one. This code (the part between init and main just...
  19. J

    Help with voltage level converter, please.

    Hi All, I'm playing with the HMC6532 pressure module. All works ok when I run both picaxe and the module at 3.3volts but, when I try to use a voltage level converter with the picaxe at 5v and the module at 3.3v, the results are very erratic. Someimes, it gives the correct reading but more often...
  20. J

    Humidity Sensor in the real world

    Hi All, I'd be interested in anyone's thoughts as to how (and where) to best physically mount an outdoor humidity sensor (SEN008 Humidity Sensor). Ulitmately, I want to have a outside box housing a Picaxe chip and 433 MHz transmitter. (I'll have a pressure sensor indoors in the same box as...
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