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    20X2 i2cslave and serial issue

    Thanks hippy. your suggestion is working fine. Here is my code. Much simpler than I had guessed. David '20X2 i2c slave to Arduino i2c master interface 'for reading 2x two byte temperature values from remote picaxe 14M2 and 2x DS18B20s via Xbee link #picaxe 20x2 #no_data dirsC=%11111111...
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    20X2 i2cslave and serial issue

    I'm trying to use a 20X2 as a i2c slave. I also would like the 20X2 to execute serout and serin commands. The i2c master is an arduino uno. I can get the arduino to read in 2 bytes from the scratchpad ok when the 20X2 is not trying to read the serial port but as soon as the serial port is active...
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    28X2 instability ?

    Hi, seeking advice on an issue I have struck with a 28X2 based solar battery charge controller I have built and programmed. The original design for the controller was based on an 18X (AXE10 datalogger board) that worked fine for several years. I have now included additional functionality...
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    SAA1064 large display

    Hi, cant seem to find anything definitive on using a SAA1064 with a large 7 seg LED display with 4 LEDs per segment (Vf > 5V). Seems like SAA1064 can operate at supply voltage up to 15 volts but I'm unclear on operation of SDA and SCL lines with a picaxe running with 5 volt supply. Thought to...
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    20M2 stops when programming cable disconnected

    High, just wondering if someone can shed any light on this one ... I successfully program a 20M2 and it runs fine until I disconnect the programming cable. The 10K/22K resistors are still in circuit after the cable is removed. I'm using the standard 10K/22K resistor setup and have used this for...
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    pin5= b0 (40X /18X difference ?)

    should the following code set pin5 to whatever bit1 is ? b1=b0&$02/2 pin5=b1 why does the command seem to work on a 40X chip but produces a unknown symbol syntax error on a 18X chip ? the same command using either pin0,1,2,6,7 seems to work on both chip types but pin3,4,5 all bomb out with...
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