Pressure Transducer

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Pressure Transducer

I may have over heated the part trying to get it soldered on. If it does not work I will not persue this project right now. If it does work I will post updates as they become available.

  • 1 × MS5541 RF, IF, RFID, ZigBee Semiconductors and ICs / Diodes
  • 1 × Arduino 3.3v

  • Clock for 3.3v Arduino

    jlbrian703/20/2015 at 18:02 0 comments

    Changing from pin 9 and

    TCCR1B = TCCR1B & B11111000 | 0x05;

    to pin 5 and

    TCCR0B = TCCR0B & 0b11111000 | 0x05;

    generates the correct clock signal.

    What ever the clock signal is for the Uno, it is divided by two for the 8MHz 3.3v arduino.

  • Possibilities

    jlbrian702/18/2015 at 02:45 0 comments

    I am using an arduino pro mini 3.3v with the MS5541, and I think that the problem may be that the 3.3v version operates at 8MHz instead of 16MHz. I will try to put it on a scope and play with the timer values for the pwm, but I don't know if I will get anywhere. I havn't been able to find any tutorials about it anywhere.

    I think that the other option will be to try to put a 3.3v reg on a 5v arduino and see how it works for me.

  • Testing

    jlbrian702/14/2015 at 13:12 0 comments

    I got it so that I am getting the same calibration words repeatedly, but not every time, and I don't seem to be getting a response for D1 and D2 which are the digital temp and pressure readings. When I put a multimeter on it it looks like it is responding, so I am hoping it is a timing issue. I will try putting a scope on it and see what I get.

  • Test

    jlbrian702/11/2015 at 00:10 0 comments

    Hooked it up, and it is talking to me, but I can't make out what it is saying. Others on the blog say "It Works!"... Not for me.

    I think I will probably have to put it on a scope and make sure that the timers are right.

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Jaw wrote 02/14/2017 at 18:48 point

Hi, got the same pb with the ms5542 and your intuition was great : use a pro mini 16MHz and power it via the vcc with 3.3v . It is kind of overclock but works!

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