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  1. M

    SKYLAB SKM53 GPS or NEO7 and the AXE133

    Years ago I bought a skylab SKM53 ,I haven't got arround too yet making that outside clock ,water controller ,pool timer or logger The data sheet says it has an internal battery and needs a supply capable of at least 150ma , with decoupling of atleast 10uF and 1uF and TXD0 with a recommended...
  2. M

    BMP180 Code Examples

    Digital Pressure Sensor- With Temperature. Although the ds18b20 is probaly more accurate the Bosch sensor does well and is highly responsive. For best accuracy a linear supply @ 3.3v is recommended and check calibration yearly 'not likely lol. The Bureau of Meteorology usually report the mean...
  3. M

    LCD Keypad Shield

    Can be found for less than $5 which seems like good value. the unique thing it has 6 key switches to get your project up and running quickly. there seem to be a lot of different makes but all seem to work identically. Unlike older LCD's these new 1's work happily at 4v you just need to adjust...
  4. M

    CALIBADC10 Code examples

    For good results using A/D Converters make sure you always include BY-PASS Capacitors, without them power supply noise may well eliminate any chance of precision. Ideally they should be found at the power supply and all devices you have populated your board with . The smaller capacitors closest...
  5. M

    Best wishes

    The 13th is lucky for some ! I can't believe I'm beating westaust55 to the PUNCH he's slippin abit lol Hope your have a Great BirthdaY hIppY !!!! Count down to a special event see post#6 http://www.picaxeforum.co.uk/showthread.php?18694-DS3231-Code-examples I tried to add colour but...
  6. M

    HIH-5030 / 5031 Low voltage Humidity Sensor.

    Not so long ago Hemi345 introduced to the forum a Honeywell humidity sensor with good accuracy. This looked good eventually got one to try its an smd package , I cheated and mounted it on a SOIC8 adapter board. the sensor is sensitive to light so i'll mount this upsidedown on the mainboard. The...
  7. M

    Common Wind Speed and Direction sensors.

    Recently my weatherstation gave up, I do miss knowing the wind direction. The schematic shows how to interface commonly found Anemometer and Wind Vane. Always interesting to doing some testing you get to find out how good things are lol. These sensors use glass reed switches they work quite...
  8. M

    Voltage Divders Made Easy !

    Voltage Dividers Made Easy ! The maths is made easier if we select exact ratio's,we can use just two common available resistors. The schematic shows some examples using an AXE132 with a regulator circuit with transient protection usually good for about 200ma enough for an lcd or other display...
  9. M

    Sure GPS Demo Board GP-GS010

    It seems everyone's gone GPS mad at the moment so I thought I'd try one only $35 delivered. The GPS is conveniently powered from the mini USB port when data is received from a satellite a blue led will pulse every second and 8 different messages are sent out at 9600 baud. $GPGGA, $GPGLL...
  10. M

    Universal programer Development Board

    After getting a monster 40x2 Picaxe I was not so keen to use it on a breadboard. I purchased a Sure programer it comes with 18,10 and 40 pin Zif sockets just 11 aussie dollars delivered! It seemed a waste to just remove and use the Zif's so I finaly decided to convert it to a higher level...
  11. M

    CountDown Timer 3 Digit 7 Segment reusing an axe133 (18m2)

    CountDown Timer 3 Digit 7 Segment reusing an axe133 Board with (18m2) Have been wanting to try driving a multiplexed display using an 18m2. and using hardware TIME seems very accurate for seconds. In this example our selected time is 120 seconds displayed at start. output1 is OFF. Push the...
  12. M

    switchmode supply LM2596

    Build a switchmode supply for your picaxe based on the LM2596-adj Have been using this for a while but finaly got arround to doing a drawing, so thought I would share as surprising these work really well providing a nice clean supply and no heat lol! and handy too able to use those header leads...
  13. M

    LCD 1602 driven by PICAXE 20x2 and DS3231SN

    Its easy to get side tracked but i guess while the idea floating best to write some code before all is forgotten everyone probaly had enuff already lol. http://www.youtube.com/watch?v=lqLpcA3RDjE The first line displays the time with seconds and date which cycles arround. On the second line we...
  14. M

    Learning to Drive an LCD DISPLAY

    Blame ! Saborn for this Thread he pointed out those cheap LCD's on ebay I just couldn't resist those blue ones lol. Going to start a project where i can use 1 so it was about time I learnt how to drive it ! seems quick enough dont think i'll need a serial driver again lol. '' COMMAND...
  15. M

    RDM630 125khz RFID Card Reader CODE EXAMPLE

    This is a ruffy had to tryout the new forum,recently my car immobilizer packed up so it was time to look for a picaxe replacement which one lol 8m2 14m2 18m2 20m2 lol ! The RDM630 has a uart output of 9600 bps TTL so we should interface it using T9600 #picaxe 20X2 'version C.0 marks...
  16. M

    DS3231 Code examples

    24 hour or 12 hour modes. We can write or read Time or Calenda information from the appropiate register bytes which is in BCD format. both programs will display in a 12 hour format using the terminal window . Using 24 hour mode we enter for hours $00 to $23 mins $00 to $59 secs $00 to $59...
  17. M

    DS1307 Code Examples

    24 hour or 12 hour modes. code was quickly cut for the 20x2 hopefully it will help ! lol both programs will display in the terminal window 12 hour format. To program the ds1307 in 24 hour mode we enter for hours $00 to $23 mins $00 to $59 secs $00 to $59 # picaxe20x2 #...
  18. M

    20x2 Clock and temperature on LCD 20X4

    My interest was sparked recently so I thought I'd try some code using an LCD 20X4 displaying Clock and temperature using LCDRS2 serial driver http://www.picaxeforum.co.uk/showthread.php?t=16781 Displays on Line 1 - Time 12 hour format with seconds Line 2 - Current Temperature Ds18b20 full...
  19. M

    20x2 led clock 6 digit 7 segment ds3231 rtc ds18b20

    Using bigger 4 one inch 7 segment displays , they are really impressive compared to the smaller 2 half inch used to display seconds. For those wanting good time accuracy the ds3231 (ebay) is a good choice,both I2c slow 100kbps or fast 400kbps can be chosen. The code is the same should you...
  20. M

    Project Board 20x2

    time I made myself a project board for the 20x2 thought I now knew a little bit to adventure dangerously! included on the board is a ds3231 rtc it really does keep better time than a ds1307 runs hi2c at 400khz and a super cap to backit up. gone a bit overboard with the supply and coupling caps...
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