redtop's Ferduino controller

Redtop how long is the refresh rate in between screen changes using the new 7" screen ?? Could you post a video of it. Would like to see the bigger screen in action
 
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it's not hardly as fast as the 3.2WD but it's fast enough, I don't have a way right now for video but as soon as I can, I'll try to post a video

it's less than a second between screens, just guessing
 
I just couldn't stand it any longer, it ain't perfect or anywhere near finished, but it is in use now.......and just so you guys know, I ain't done tweaking this yet, I ordered a second screen so I can keep messing with it :D

IMG_3326_zpsb4c30902.jpg


IMG_3330_zps1aecad6a.jpg


IMG_3327_zpsed5917bc.jpg


IMG_3329_zps07da554b.jpg
 
just for good measure, figured I needed to post a screen shot of Joy-Reef running with the big screen Ferduino :D

Capture8_zps0b4bfde8.jpg
 
I have discovered an issue with using this screen, my Arduino was getting hot and I mean too hot to touch, apparently the power stuff on the Arduino can't handle the current draw from this screen if you're using the wall wart to power it with

the 9v 1a wart wouldn't power the screen at all so I stepped it up to a 12v 7.5a supply, that did the trick and I thought all was well, until I felt of the Arduino this morning

it was much too hot for my liking, I disconnected the power supply and am powering it through the USB like when I had it connected to my PC and no more heat issues with the Arduino and it works perfectly like that :D

just thought that might be something worth mentioning
 
Hi!

Wiliie, no problem with the temperature.

Anyway you can put a heatsink below of the regulator of voltage.

Best regards.

Fernando Garcia
 
fefegarcia1 said:
Hi!

Wiliie, no problem with the temperature.

Anyway you can put a heatsink below of the regulator of voltage.

Best regards.

Fernando Garcia
Click to expand...

that would probable fix the issue but it is a tight fit in there with all that stacked together, I don't mind using the USB port for power since my power strip has the USB charging port built in, it's just a matter of connecting 1 more wire but it is eliminating one power supply and using something that I'm already using anyway :) and it might even save me a couple dollars in electricity usage over the next few years LOL

I think it would be best if it was possible to power the screen with a separate power supply but I'm not electronically gifted enough to know where to cut the trace and connect it :D
 
Does the TFT board connect to the 5V pin on the arduino? You should be able to find the supply input the board uses. But, as you have changed to the 5V USB supply, it's no longer having to shunt all that current through the regulator any more, anyway :)

Tim
 
perkint said:
Does the TFT board connect to the 5V pin on the arduino? You should be able to find the supply input the board uses. But, as you have changed to the 5V USB supply, it's no longer having to shunt all that current through the regulator any more, anyway :)

Tim
Click to expand...

yes I could tap into the pins of the screen and bypass the Arduino for external power to the screen, I was trying to get Fernando stirred up about cutting a trace LOL I think the screen actually uses the 3.3v instead of the 5v, not sure which though

since the USB power is working well, I may leave it as is, it's only a problem if I need to upload something to the controller but that really isn't a problem either
 
Hay Willie

do you have an extension cable hooked to that 7" screen or only to the 3.2? I was wondering if we could get a ribbon cable on the 7" screen so it could be mounted a little ways away from the main arduino maybe 10 inches or 12
 
rott said:
Hay Willie

do you have an extension cable hooked to that 7" screen or only to the 3.2? I was wondering if we could get a ribbon cable on the 7" screen so it could be mounted a little ways away from the main arduino maybe 10 inches or 12
Click to expand...

I had the ribbon cable on it but for some reason, I couldn't get it to work with the other components all stacked together so it is connected directly right now, I know it should work with the ribbon wire and mine did while I had it at my desk messing with the code, I don't know why it isn't now, maybe I damaged my cable or something :confused:
 
that was my mistake I was looking at the PCF8575 chips and clicked on USA only sellers and didn't notice the chip changed sorry
 
Hello,

I am thinking about taking the plunge and building a Ferduino. Are you using the pH function at all? If so, what is the circuit and how do you calibrate?

Also, do you find a big difference in navigating with the 7 inch screen?

Thanks in advance,
Sean
 
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