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  1. K

    Use variable to set qualifier

    I am reprogramming the 18M2 in the OLED. I am trying to display GPS stuff coming in over a bluetooth modem. I would like to select various NMEA sentences for display and create a subroutine to do that. Is there a way to use variables to set the serin qualifier?
  2. K

    Re-programming OLED as a GPS display

    I have a QStarz datalogging GPS fob, which has no display. I would like to add a display to it so that I can sync my camera clock for GPS tagging. I have an OLED, and was thinking I could marry a BlueSmirf Bluetooth modem to the OLED to display data from the GPS. The BlueSmirf defaults to 9600...
  3. K

    CHI-030A B port connection

    I have this board and am making an alarm clock. I also have an 08M2 reading a DS18B20 to provide temperature data. I would like to use HSERIN on the 18M2 which uses B.2. Any suggestions for hooking into this pin on the board?
  4. K

    pinC.x vs C.x

    Is there any rhyme or reason as to when to use which of the above? I am trying to use symbols but sometimes I get just a number instead of the actual high or low value of the pin.
  5. K

    AXE133 Current draw

    I was wondering if I could power an 18M2 and the AXE133 OLED display from the same 5 V 78L05 regulator with a 7 V supply. The 78L05 can output about 100 mA. Is that enough?
  6. K

    Max number of storage variables in SERIN command

    The Serin command lets you string an arbitrary number of result variables. Is there a limit to the number you can put in the command, or will I run out of RAM space first? 8^)
  7. K

    HSEROUT vs SEROUT on 18M2

    I am starting a project that receives GPS data over USB and displays it on an AXE133. Is there any difference between the H and non-H serial output? Is the H non-blocking? If so, how do I know it is done?
  8. K

    time and bintoascii

    I was creating a quick program on my 18M2 to test out a serial LCD and included a bintoascii time, b1, b2, b3, b4, b5, b6 to send the elapsed time to the LCD. I got an error about using a byte variable where a word was required, so I switched it to bintoascii time, b1, b2, b3 and it worked. I...
  9. K

    Random Command

    I am thinking about creating an LED flickerer to simulate fire. What kind of distribution does the Random command create? What is the period?
  10. K

    PWM to Voltage

    I am designing a model train controller using an LMD18200. One of the outputs from the LMD18200 is a motor current monitor a 377 uA/A signal from the switch FET's. I can put the proper resistor there to convert the current to a voltage, but what is a good way to convert this pwm signal to a...
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