casestudies

Member Since: March 5, 2011

Country: United States

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C/C++, Java, Fortran, (a bit of) Python, Java Script, HTML, PHP

  • Product SEN-11183 | about a year ago

    Fixed. Found a few problems…I unsoldered the header pins which might have been the cause. Found out the sensor was working correctly by looking at the signal using a scope. Eventually tracked the problem down to the sensor pin on the board being shorted to ground. Cutting the trace from the 10K pullup resistor to the sensor pin on the board and soldering a tiny wire to the end of the resistor to the sensor wire did the trick. Also note if you’re not using the breakout board, like I am, double check the pin trace to make sure that each wire in the RJ11 connector is going to the right wire in your project. Found out the following color codes for the wires in the RJ11 connector: RED=VCC, Black=GND, Green=Signal.

  • Product SEN-11183 | about a year ago

    I’m having a bit of trouble getting the sensor to read a value. I can poll the board with serial commands fine. Troubleshooting LEDs for serial commands flashes correctly. However, when I plug the sensor in, with water flowing through the meter, I don’t get any reading…remains all zeros for the response for “R” command. The troubleshooting LED for each pulse of the meter does not flash either as if the sensor is not working… Any ideas?

  • Product PRT-11475 | about 2 years ago

    That’s a good point! Thanks!

  • Product PRT-11475 | about 2 years ago

    Awesome! How long would it take to see if they’re available, and if so how long would it take to get them in the store? I’m almost done with my design and will be ordering parts soon-ish. Was going to use DB9 connectors, but the holes for these would be much easier for me to machine. If it’s on the order of weeks, I could probably wait. If it’s on the order of months, I might just go with my original idea. Or perhaps just get these for now if they’d be the same size as the reversed gender type. I’ve looked around the web for the reverse of these, but haven’t found the same type of pins and connectors… Thanks for the reply!

  • Product PRT-11475 | about 2 years ago

    Is it possible to offer these connectors with the genders reversed? In other words, have the panel mount jack be female and the mating plug be male?

    Like gdgt mentioned, these look great for connecting stepper motors to a CNC mill control box I’m designing, but I generally prefer to have female jacks on the box and have the plugs be male, like plugging an applicance into 120V wall outlets. Maybe I’m thinking about it wrong, but if I’m powering the steppers with a 28V supply (using a current limiting resistor), I assume the connectors would have 28V on them. Having female pins seems safer to me as there’s no male pins sticking out waiting to be shorted to something (or someone, me?) by accident.

  • Product COM-09766 | about 2 years ago

    The file doesn’t seem to be located at the link mentioned in this post. Does it still exist? I’d love to use your code if you’re willing to share. If not, I’ll try writing my own library. Thanks!

  • Product DEV-11401 | about 2 years ago

    True!

  • Product DEV-11401 | about 2 years ago

    A bit steep in price. I made a shield for Arduino using the BatchPCB service. About $12.50 for the board. With shipping and processing fees, it came to about $23. With shipping this package, it’d be about $24 for First Class or almost $28 with Priority Mail. Plus another $1.50 for header pins. The “Duino” listed on Imp’s website is $20 but they included headers, MCU, etc. I was holding off buying an Imp until the shields and breakouts came out, but due to the high cost of these, I think I’ll wait a bit longer or build my own. It’s still a cool idea that I want to experiment with though.

  • Product WRL-11395 | about 2 years ago

    Oops, sorry. I meant the IOBridge life-time data upgrade package where the upgrade applies to one device and each gateway requires a separate subscription. For some reason, I thought it was a yearly subscription thing. Correct me if I’m wrong here. I wasn’t sure if the Imp model would be similar to this.

  • Product WRL-11395 | about 2 years ago

    I’m interested in using the Imp to connect sensors and collect/log environmental data for logging which is why I asked. A smartphone would not be necessary for this purpose… I could also see it being used for SMS triggers, which doesn’t need a smartphone to be useful.

    The Imp has a lot of nifty I/O features along with I2C, etc. which would work great for connecting sensors without the added overhead of another microprocessor like an Arduino. Keep it simple and cheaper, and it’s easier to get things setup and running quickly. I just thought about this issue because I’m thinking of using it in other ways.

No public wish lists :(