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Asked — Edited

Peaking Under The Hood Of My V4 Ezb

Hi all,

I just unpacked ny new V4 EZB and thought I'd shoot a video of what it looks loke up close and with all the plastic caseing taken off. I wanted to get ths posted last night but Youtube took forever to up load. Enjoy:

#48  
Ok. So it connects directly just like the Bluetooth did with no data plan needed?
United Kingdom
#49  
Yes it can do.

There are two "modes" WiFi AP Mode and WiFi Client Mode.

In AP Mode (Access Point), the EZ-B will broadcast it's own WiFi network which the PC's WiFi will connect to.

In Client Mode the EZ-B will connect to an existing WiFi LAN.
#51  
One reason why they switched was because of the audio now coming from out of the EZB V4 board itself. Blue tooth didn't have enough bandwidth to support streaming audio along with all of the other data.
Australia
#52  
@Richard R and @d.cochran, thanks for the suggestions.
The original Wall-E speaker has no markings on it, so I could not check the ohm rating.
I did however connect another 8 ohm speaker and got the same results - continuous annoying static when the EZ-B Camera is turned on:(
I also tried using a different PC in another location of the house, with no change.

I think the HiFi (external Amp) solution is more suitable for a larger robot. There's not much room inside Wall-E once you put in the Ez-B with its power base and connect all the servos (check out the pics on my Wall-E thread). I do have a FiiO Amp that I could hack but would be reluctant to go down this path unless I was sure it would fix the problem of interference from the Camera

I wonder if any of the other 98 people (besides HerrBall & myself) who received hand-built Ez-Bs, have static noises coming from the inbuilt speaker system? Time will tell I suppose
I also wonder whether I have a faulty EZ-B?
#53  
@Tony1952,

I've been thinking about your sound problem and have a few ideas to throw your way.

First, I noticed a few things when I was struggling with the poor sound issue I was having when first setting up an external amp and speakers on my new V4. Sound quality varied greatly between different sound files and also types of files. I think this was because some of my files were not sampled lower than others. Also in my case I found that my .WAV files played much better than .MP3 files. Try to find higher quality files and see how they sound. Perhaps you can resample your sound files using a sound editor like Sound Forge (at $200 it costs a lot but there are other free programs that will do the same thing.
Sound Forge

Second; If that won't fix it maybe you can add a small external amp and use the breakout hole before V4's built in amp and an external speaker. I did did a tutorial on how to do this here:

Breaking Out The Sound From The V4 Ezb

If you don't use the power base, remove the little deans connector and solder wire in for a pigtail power connector you will have lots of extra room in your bot. If you're concerned about a fuse you can use a inline fuse in the positive wire. Here are a few examples of hardware you could use:

In-line AGC Fuse Holder

Mini 5V Audio Ampli Digital Amplifier Board

Hope this solves your problems. Let us know.:)