Thanks Alan. Now I remember you posting this a few weeks back. Sounds like an excellent idea.

Quote:

Now I remember you posting this a few weeks back

Which of course, without knowing this trick, you probably would not have been able to find

Alan

Not sure if this is the correct thread to post this in but it does have to do with the IO TINY Board. I was thinking of using an ESP8266 on my robot along with the new EZB-V4/2 controller. They would be both powered up and online at the same time. They will be in fairly close proximity and was wondering if the would present problems with the wifi operation of both controllers?

Also I will only be controlling a couple of relays with the IO TINY Processor Board. No camera and just using a couple of digital lines. I was wondering what the power consumption is when the IO TINY is up and running with just the wifi active. Would it be comparable with the ESP8266 processor?

I find that the ESP8266 processor has some serious wifi connection problems and wanted to check to see if the IO TINY would fit the bill using only the wifi connection and a couple of digital outputs?

Hi @rbonari

I would definitely try to separate your WiFi controllers as far as you can from one another. In the past, with Bluegiga modules, we've seen considerable radio communication interference from one wifi module to another at a foot away from each other.

The IoTiny board typically draws 70mA @7.4V with no other peripherals connected.

Sorry, I don't have any current draw specs for the ESP8266.

Thanks Jeremiah,

Are the Bluegiga modules the ones used in IO TINY and EZB-V4/2. Am I correct in assuming from what you said in previous post that there would be considerable issues with the IO TINY and EZB Controller when located within about one foot of each other?

I want to locate both controllers on irobot create 2 so I would probably need to construct a shelving system to separate the controllers. Any other ideas on minimizing any interference would be much appreciated....Rick

I'm not promising the same results but I have two V4 EZB's (not the new /2) sitting within 6 inches of each other and have no issues that I can tell. Both attach to my network in client mode just fine and operate perfectly.

Thanks Dave,

That surprises me, but I'm glad it works for you It may have to do with the strength of your router.

@rbonari The slash 2 and IoTiny both have the MxChip module on them. I haven't had a chance to do some "minimum distance of separation" tests. Maybe someone in the community has.

Would you be using client mode? [Both modules connected to a router]

It shouldn't surprise you because it's in client mode. Client mode uses the same wifi channel and the communication of all clients is synchronous, meaning they each take turn sending/receiving.

If the ez-b's were in ad-hoc mode (access point), then i would be surprised about good performance if they were all on the same channel.

A channel is a frequency the wifi "talks" on. When there are too many devices on the same channel, there will be interference.

If you were to use a bunch of ez-b's all in access-point (ad-hoc) mode, then i would recommend following the FAQ which explains how to use Wifi Info to display available wifi channels and saturation here: https://synthiam.com/Tutorials/FAQ.aspx#9

For best performance of multiple EZ-B's, client mode is the best - unless your network is saturated with wifi communication of too many devices. Again, this doesn't mean wifi frequency interference, this is device communication over the single wifi channel of client mode.