Recent content by jmumby

  1. J

    Turn on DFPlayer with 08M

    For simplicity I left this out. I am controlling the unit serially. I will try the high side switch as you mention and then a pam8403. Hopefully that won't have the same issue. It is just for a picture frame so the inbuilt amp is adequate.
  2. J

    Turn on DFPlayer with 08M

    I have a CHI040 and I want to turn on a DFPlayer same as in the SPE035. So I have hooked it up as below. The reason I want to do this is the player uses a huge amount of current when doing nothing. It may need to turn on for 30 seconds a day, at the moment when it is idle the circuit...
  3. J

    Pressure sensor/transducer 0 -> 100psi

    Does any one know of a sensor that will measure pressure up to 100PSI, not fussed on output preferably digital. I have seen a few out there but they are hugely expensive! It will used to measure pressure within a water bottle rocket. Thx, Jason
  4. J

    Ethernet help

    Hi, I guess everyone that has Ethernet on their project uses the same methods to communicate. Specifically with the internet, maybe twitter updates or getting data. So maybe you can help get my head around my current problem. I have a serial to Ethernet module that supports ARP, UDP, TCP...
  5. J

    #freq 20X2

    Do you not need to set this for the 20x2? The manual says 28x/40x parts only. I have a 20x2 @ 16Mhz and Debug does not appear to be communicating. thx
  6. J

    Dead 20x2, any chance to recover?

    Hi, I had a few checksum errors to a 20x2 (using a AXE118). I only have power and serial download cable attached and it won't program at all anymore. Anyone have any magic tricks to recover from this? Thanks Jason
  7. J

    20x2 i/o

    Just to verfiy. ALL pins can be either input or output on a 20x2 except C.6. The manual says Hserout can't be used with the download output, what does that mean? As a rule you always use a pullup for serial coms? Cheers,
  8. J

    20x2 Wiznet Hserin

    Hi, I have a wiznet lan to serial module I can send serial data to and from the module using serin/serout. I want to send serial data out but have hserin in the background to the sratchpad. When I physically connect to hserin...
  9. J

    1-wire support 20x2

    1-wire commands (owin owout) can be used from any I/O pin on a 20x2? I see the infamous 'One-Wire Tutorial’ is still AWOL. Just the theory of 1-wire is...well, 1 wire. If I were to use a input and output pin wouldn't that technically make it a 2-wire?
  10. J

    Multiplication problem

    If I put 3 into B3 and multiply by 10 I get 30. If I Get 10,b3 and multiply it I don't b3=3 b4=b3*10 b4=30 get 10,b3 'scratchpad value of 10 is 3 b4=b3*10 b4=" " '$FE or something random Why is this?
  11. J

    New to interrupts, help please

    Hi there, Haven't played with interrupts before so this might be a pretty obvious mistake. I have a cell phone that has a built in AT modem that has coms over RS232. Attached to a 20X2 it sends notifications of sms messages to the picaxe. It then sends the message to a 4D OLED. Heres my code...
  12. J

    ulafat distributer in NZ

    Given up on dosonchip, any kiwi's know where to get these in NZ? Cheers,
  13. J

    How do I send a " with serout?

    So I have a string like (AT+CSCA="+3828454738") Is my only option ("AT+CSCA=",34,"+3828454738",34)? i.e how do you escape chars in the editor Thx
  14. J

    MAX232 to picaxe without a PC

    I have a phone with a data cable. The phone has a hayes compatiable modem in it so Im pretty keen to get it going with a pixace. Probem is the cable has 1.A micoprocessor for translating commands and 2. some sort of max232 setup to level shift from the phone (3.3v) to a PC. Problem is I want...
  15. J

    20x2 64Mhz testing

    Has anyone had a crack at running a 20x2 at this speed? What is the theoretical maximum baud do you think? Any kiwi's know where to find the correct resonators?