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SparkFun will be closed May 25, 2015 for Memorial Day. Orders placed after 2pm on Friday the 22nd will ship out on Tuesday. Thanks!

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goseese

Member Since: February 7, 2013

Country: United States

  • I was able to burn the boot loader to mine Too. Simply hooking the ICSP (MOSI, MISO, SCK ) directly to the ATmega TQFP pins on the back of the PCB, and then power, ground and reset pins on the Micro view header.

    But for me all I did was go to my Arduino IDE, select the board => Arduino Uno. Then select burn boot loader. I used this programmer this programmer https://www.sparkfun.com/products/11801. All fixed.

    Then disconnected it and hooked the MIcro view up through serial pins and an flashed the cube script.

    Everything is working great.

    Can’t believe you are going to send me another one for Free! So cool 2 for 1.

  • I am having a problem getting this board to work with Mac OSX. I can not get the tty.USBXXX to show up as a USB modem.

    I have the correct proMini 5V/16MGHZ board selected, but the serial port menu never shows any USB serial ports, only the blue tooth options.

    I have installed the latest correct FTDI drivers for my mac. I even contacted tech support at ftdichip.com and asked them for sure which drivers are the correct ones for my Mac.

    This is my first attempt with an Arduino, so I can’t say if any other Arduino boards would ever work.

    However, googling seems to report many people with the same problem (No tty.USBXXX when Arduino board is plugged in ) and no fixes.

    Does anybody have any suggestions?

    If I go to my About this Mac => System Info => USB no devices show up there either aside from my standard in stalled items.

    I have tried different USB ports and different USB cables. This is a cable I also use to tether my phone so I know the cable works.

    I do also have a Teensy 3.0 that I purchased at the same time. Went through all the install steps there and am having a similar problem. No tty.USB shows up in Arduino app.

    I have a second Mac here on 10.7.5, Exact same results on that mac as well.

  • I would like post a question for a future ATP. There are many kinds of opto-isolators, photo-diode, photo-transistor, FET, darlington pair, open collector… etc, there are some high linearity opto-isolators like the LOC11. Can you explain the advantages, pro/con for the different types of optos?

    -Thanks

  • What if you want to display more then 1 page of information? For example. If I want 1 screen to show analog data, I understand that per the demo video, but If I want to click a button on the screen and go to a second page that shows more of a list or some other display or a second analog display from a different input, can this display handle multiple pages? I didn’t see anything in the quick start but if there is info that I am missing just point me to the docs.

  • Have you ever used any of the HCNR20X High linearity Opto Couplers and/or do you have any thoughts pro/con on them. http://pdf1.alldatasheet.com/datasheet-pdf/view/64618/HP/HCNR200/+4_529UEMZhDOTB-A+/datasheet.pdf

    Basically they are a matched packaged pair LED and Photo Diode. You will get a 1.6V LED voltage drop on the sense side, and you are limited to about 25ma of current. But it’s pretty accurate for small current sensing applications. They have about a 15% transfer gain so 10mA through the LED = 1.5mA through the photo diode. Then it’s just a matter of connecting the Photodiode to an opamp in some configuration to convert the 1.5mA sense current to a usable voltage.

    I had trouble using the ACS712 with an application that had voltages < 5V and very small currents.

No public wish lists :(