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  1. R

    Anyone know what this is?

    Found this little board in my loose box of Picaxe parts. I don't remember buying it, and have no idea what it is. The IC is a 16f84-04/P Anyone recognize him ? Richard
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    The X2 chips

    I've been away from the forums for a bit, has there been any word about these ? Richgard
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    Puddle of keys

    I was very impressed by the link to wilfs Sea of Keys idea for 128 keys on just one input. I had an idea for using it, but immediately realized it wouldn't work for me - the design allows the Picaxe to recognize only one key being pressed at one time. What I want to do is read the status of...
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    Potentiometer choice

    Hi, what's the best range for a pot to use with ADC on an 08M? I'm using a 10k that I had lying around, and I only seem to get a range from about 115 to 170
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    Rotary Decoder

    Hi everyone. I'm using a modified version of the code that *genairco* posted to try to read a rotary encoder. The code I'm using is : <BLOCKQUOTE><font size=1 face=arial>quote:<hr height=1 noshade> start: 'establish a known start state from which a known logical pattern may be expected 'from...
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    reading a Picaxe

    Being the knuckle-dragging goober that I am, I've managed to overwrite the PC file containing a Picaxe program I've been working on. The program is in a chip, and working fine as far as it goes, but a) I'm not quite finished tweaking it, and b) I'm going to want more than one. Is there any...
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    Picaxe takes flight.....

    Thanks for the help from everyone over the last couple of weeks, my first prototype picaxe powered flight simulator instruments operated last night :-) Two servos driven by an 18X operate the artificial horizon, and a stepper motor driven by an 08M operates the heading indicator. (The flight...
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    serin... no answer?

    Is there any way for a picaxe to wait a short time for a serin stream, and if it doesn't get it, go back to what it was doing? I'm thinking of... serout (&quot;ready&quot;) serin #b1 pause 100 if #b1 &lt;&gt; &quot;&quot; then something something else: Is there any way to do this, or does a...
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    T-shirt transfers

    Has anyone ever tried using the T-shirt transfer material to make resist masks for etching PCB's? I've tried using the trick of ironing laser-printed masks onto the copper and then washing off the paper in hot water, but I've had, shall we say, &quot;less than consistent&quot; results, so I...
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    Someone explain the math, please?

    If I say &quot;for b0 = 1 to 260&quot; the Picaxe goes into an endless loop. Why? I undertand that b0 cannot be more than 256, but I don't understand why &quot;b0 = 260&quot; doesn't turn into &quot;b0 = 4&quot; Thanks, Richard
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    Sharing a Comm port

    Hi - If I connect the serial port of my PC to the serial in, serial out and ground of more than one picaxe, and then use &quot;serin 1, N2400, &quot;A&quot;, #b0&quot; on one picaxe and &quot;serin 1, N2400, &quot;B&quot;, #b0&quot; on another, etc, will that give rise to any problems? As I...
  12. R

    "Virtual Oscilloscope" probes

    Hi - there's a number of good PC based &quot;virtual oscilloscopes&quot; available for download that let you use your PC's sound card as an input. You can even have a two channel O'scope if you have a stereo mic inout. But... I know that if I send Picaxe output levelsignals into the mic input...
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    Chatting to the Picaxe

    While getting acquainted with the Picaxe's there were several occasions when I've wanted to send / receive between the PC and the Picaxe with a little more control than just by using the F8 terminal option in the programming editor, but didn't want to write a specific application just for the...
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    My steppers won't step :-(

    Can someone tell me what I'm doing wrong please ? Here's the schematic for the pcb for the stepper driver... http://members.aol.com/rickgalty/stepperpcb.jpg and here's the link to the driver datasheet.... http://pdf1.alldatasheet.co.kr/datasheet-pdf/view/5627/MOTOROLA/SAA1042.html I'm...
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    Receiving a variable

    Hi again... I'm trying to input a number from my PC to the PICAXE. I wrote this code... main: serin 4, n2400, b1, b2, b3 for b0 = 1 to b1 high 2 pause 300 low 2 pause 300 next b0 pause 800 for b0 = 1 to b2 high 2 pause 300 low 2 pause 300 next b0 pause 800 for b0 = 1 to b3...
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    18X project board

    Hi - my order of chips etc came today, and included was a CHI030 project board for the 18X. Am I missing something, or does this board have no facility for switching a &quot;Prog/Run&quot; option so as to communicate with a PC after the program is downloaded? Richard
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    Porting code to a PIC

    I'd like to develop my app using a PICAXE 18X as it's so easy to use. Once it's working though, I'd like to save money by replacing it in the finished device with a much cheaper plain PIC. So, two questions... 1) What's an inexpensive PIC that would be pin-compatible with the 18X? I won't be...
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    Sending data to a LED array

    Hello again. I want to display numbers from the picaxe onto a bank of five 7-seg LED digits. I have the LEDs wired to an M5451 driver chip, which requires a clock signal and a data pulse signal. I wrote this code... <BLOCKQUOTE><font size=1 face=arial>quote:<hr height=1 noshade> main: symbol...
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    PCB works! .... Diode question ?

    Thanks for the help on my PCB layout a few days ago. I finished making it last night, and it works flawlessly. I was pleasantly surprised to find that two of the three PIC-08's that I have, and that reported 'hardware not found' on my solderless breadboard lash-up, are in fact good! However, I...
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    capacitors...

    Hippy said... <BLOCKQUOTE><font size=1 face=arial>quote:<hr height=1 noshade>I would recommend two 100nF-220nF caps across 0V and 5V <hr height=1 noshade></BLOCKQUOTE></font><font face='Verdana, Arial, Helvetica' size=2> That would be 100,000 to 220,000 picoFarad, right? (My identification...
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