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  1. Sadlercomfort

    Rotary Switch

    Its manually operated.. 8 menus or less
  2. Sadlercomfort

    Rotary Switch

    This will just be used to cycle through different menus, a default menu will be display with some information. Once the encoder button is pressed it will enter the menu.. then when I rotate the encoder it will cycle through until i press the button. I will also use a keypad if I need to type in...
  3. Sadlercomfort

    Rotary Switch

    I believe the quadrature encoder was what I was after :)
  4. Sadlercomfort

    Rotary Switch

    Thanks :) I've used push buttons before.. now want to try a rotary encoder. A little bigger but only need one so use much lets space. I'm not sure what type I need
  5. Sadlercomfort

    Rotary Switch

    Hi Guys, I'm looking for a Rotary Switch on F@rnell to use for a project.. I've never used one before so the terminology is confusing me slightly. I understand the concept, but dont understand things like n.o of poles, switch positions and angle of throw. I need one that clicks in aswell...
  6. Sadlercomfort

    PCB building

    Great Job! :D
  7. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    I'm baffled by this, I'd love to know what default value there internal resonator is before being prescaled.. but can't find this anywhere.
  8. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    You could try every other frequency such as 16MHz and 32 to see if you have similar problems to that of the 4MHz. This could verifiy the issue.
  9. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    Perhaps the Picaxe was the device at fault here, and changing the frequency changed the timing slightly? The datasheet does not state the 'actual' value of the Picaxe's internal resonator.. so it may create an error as the frequency is prescaled to the chosen frequency.
  10. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    Yes wont hurt.. will protect the picaxe if the max232 fails.
  11. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    Circuit Diagram looks okay to me :) and the MAX232 looks to be connected correctly. I noticed you've moved GPS2 Input to C.3 which is good :) Whats the purpose of the 4 10k resistors on the picaxe?
  12. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    Will have a look at it for you!
  13. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    That will look great! Post some pictures :rolleyes: Good!
  14. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    Great :) hopefully everything goes smoothly from now on.. are you planning on making a PCB for it?
  15. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    That's good.. it means the problem wasn't an incomplete data for the NMEA qualifier. I wondered if the 4MHz frequency needed to be set? The manual does state its 4MHz by default though.
  16. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    Hi Chris, I was speaking to Constantine last night and we managed to solve the problem! We set the internal frequency to 8MHz and shortened the qualifer to ("SA") as opposed to ("$GPGSA").. and it worked! I'm not sure if it was the frequency change or the qualifier change that did it.. waiting...
  17. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    I'm not sure how to do this.. other than what we have done. Not sure whats happening here either, I hope the max232 solves this issue otherwise its back to the drawing board! One question, are both gps's the same baud rate?
  18. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    Yes, I used this to understand how to write the first program and followed it closely. I see he also uses a max232. . When is your max232 arriving Constantine?
  19. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    I have a feeling that we simply need to remove the $ from the qualifier, and we can just look for ("GPGSA") in ASCII. Try this below, executes the same: #picaxe 14m2 'Identify the PICAXE being used as an 14M2. let b11 = 0 ' let b12 = 0 let b13 = 0 let b14 = 0 let b15 = 0 let b16 = 0 let b17 =...
  20. Sadlercomfort

    GPS NMEA, Failover Circuit upgrade attempt.

    Which PDF Chris? :)
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