Ah, well you can all upgrade to the new comm board next month. It's a much faster cpu and faster throughput, nearly 100 adc reads per second while playing audio and video.

OK, something is going on here... A few days ago Windows 10 went through a major update to I guess a new version of Windows 10... I have Cortana now... Anyway now I am experiencing what @Purple is experiencing... I am now only getting about 4 adc reads a second.... In fact my whole computer has be relatively "sluggish" in general since the upgrade.... I takes much longer for most programs to open and even ARC now takes a few minutes to install new versions as opposed to 30 seconds as it used to... Anyway this has been over a period of several days since the major upgrade of windows 10... Remember, I already had Windows 10 installed before it upgraded again a few days ago... No amount of rebooting has helped... I still only get about 4 adc reads/second when a week ago (before the update) I was getting 70 plus...

Ok, it doesn't seem have anything to do with Windows as I have tried this on 3 versions of Windows, 2 different versions of ARC and 2 different ezb4s... @Purple, I am seeing exactly what you're seeing... Can anyone else so some benchmark tests and see what you are getting for adc reads per second?

8.78 here for analog reads. 11.21 for digital reads.

I am going to try a much slower computer with the latest version of ARC.

@David... Is that reads per second? I am getting between 4 and 5 reads/second on both digital and adc... A week ago I was getting 70 plus reads adc/second

atom processors on 2 GB RAM wifi connection to the router got 9.67 commands per sec on analog reads 10.32 commands per second on digital reads

The first attempt was from an I7 with 32 GB ram and raided SSD's through a wired gigabit connection to the router. 8.78 commands per second for analog reads. 11.21 commands per second for digital reads.

Both of these were with version 2015.12.16.00 of ARC

Both of these were to the same EZ-B which was purchased a couple of months ago. The board has only the I2C 4 in 1 sensor attached.

The v4 reports the following version information EZ-WiFi v0.3 I dont know if you track by MAC address or not to identify individual EZ-B's but this is the id for this one - 00078033D45E

I still have a Windows 7 machine, and I think one of my Windows 10 machines hasn't run the update yet (I haven't booted it in a couple of weeks) so I will run some comparisons tonight or tomorrow morning to see if there is a significant difference.

I only have one analog sensor, so I can't duplicate Dave S experience of slowdiwns with multiple analog devices.

Alan