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We have about 10 Mayflys and would like to have an adapter for each, but don’t need the starter kit.

For the past few years, we’ve only offered the vertical microSD card adapter as part of the starter kit. But if there’s significant demand for it, I suppose we could add it to our Amazon store as a separate item.

Is there any place where the 90 degree SD card adapters can be purchased by themselves?

Update. We decided to try the SP510. Seems to work fine with the ADS1115 set to max gain (GAIN_SIXTEEN) with differential measurement. Resolution is 7.8 uV, or 0.14 W m^-2. I ran it for a few days logging every 2 seconds and it doesn’t look especially noisy. We will be trying this out more thoroughly in the coming month.

Thanks for your feedback. Yes, unfortunately the problem appears to be reoccurring at what appear to be random intervals. Our web host is monitoring the logs to try and pinpoint the problem. I’m sorry for the inconvenience and I hope that we’ll be able to resolve the issue today.

Thanks for looking into it. A lot of pages were working again for a while but it seems to have gone down again this morning. I’m still seeing “page not found” after clearing cache or in private browsing.

I believe the issue is resolved. If you encounter a “page not found” error, please clear your cache or open a new/incognito browser window to make sure you’re not viewing a cached version of the website.

If you clear your cache and still get the error message, please email webmaster@stroudcenter.org so I can get more details from you. Thanks for…[Read more]

Thank you. It appears my fix was only temporary as the 404 errors had cleared yesterday. I’ve pushed the site to staging and will troubleshoot there now.

Apart from the forum and home page, I see all “Page not found” messages too as of 06-12.

Hi @garrett. Could you test them for me now, please? You may need to clear your browser cache or open in a new window.

Thanks! I see they are available for pre-order again on Amazon. Yes, summer field season is in full swing :).

Here’s some sample code that I just put together to demonstrate the code for waking and sleeping the Xbee. You’ll notice it’s a little more complicated than just setting the D23 pin high or low. That’s because the pin should be pulled high when you want to sleep the Xbee (like I mentioned in my previous post), and if you want to sleep the Mayfly…[Read more]

We had a big run on boards and kits the past couple weeks, I guess it’s the spring monitoring season again. I usually try to keep the Amazon store well-stocked, but we sold more in the past few weeks than we did the previous 2 months, so I’m working on replenishing the Amazon inventory ASAP. I sent some boards to Amazon last week which should be…[Read more]

Sara,
Thank you so much for your reply. I was just getting ready to try to figure it out. I’ve been having issues with my batteries draining, so this will be a tremendous help.

Edited 6/8/19:
After some trial and error, you need to set pin 23 to LOW before transmitting. At least that’s what I could get to work with the xBee’s I’m…[Read more]

@jkirchoff – drive the pin level with the digitalWrite(#, level) function.

If you’re using a Mayfly, the XBee’s sleep request pin is attached to the Mayfly pin 23. So to wake the bee, send data, and put it to sleep all you needs is:
digitalWrite(23, HIGH);
Serial1.print(“some text);
// more print statements as desired
digitalWrite(23, LOW);

Use…[Read more]

I found that I had to manually install the Windows 7 device drivers since they did not automatically install and Windows could not find drivers by itself. The instructions on the FTDI website are not entirely clear, so here are some additional notes.
* Follow Windows 7 Installation Guide from FTDI website
* Download both the D2XX driver and VCP…[Read more]

The end nodes are set to pin-sleep mode so that the Mayfly wakes them when it’s time to send data. So the Mayfly just drives a pin low (Xbee modules sleep when pin high, and wake when pin low) to wake the module, send it a line of serial text at 9600bd, and the Xbee transmits that line to the coordinator (who’s always awake), and then the May…

[Read more]