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Forum : Digole Serial Display :

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RichMo
Total Posts:
7 
Since:
2016-Jul-21 
From:
United Kingdom

I2C Touch Stops working after USB upload, or plug in

Posted at:2016-07-21 09:33:53     

 Hi,

I have a coulour IPS display with touch screen connected to an Arduino. It works OK when powering on, but if already on, If I upload code, or plug in USB, the touch no longer works.

What could cause this?
Service
Total Posts:
414 
Since:
2013-Dec-22 
From:
Canada

RE:I2C Touch Stops working after USB upload, or plug in

Posted at:2016-11-18 12:18:55     

 Because the display module still waiting for touch press even you upload a new code, you need to reset the display module when you restart the sketch.
RichMo
Total Posts:
7 
Since:
2016-Jul-21 
From:
United Kingdom

RE:I2C Touch Stops working after USB upload, or plug in

Posted at:2016-11-18 13:11:07     

 How do I do that?
RichMo
Total Posts:
7 
Since:
2016-Jul-21 
From:
United Kingdom

RE:I2C Touch Stops working after USB upload, or plug in

Posted at:2016-11-21 14:21:02     

 Is there a command  I can send to reset it, or do I have to physically power it off and on?
Service
Total Posts:
414 
Since:
2013-Dec-22 
From:
Canada

RE:I2C Touch Stops working after USB upload, or plug in

Posted at:2016-11-22 02:33:54     

 You will find a group of 5 blank pads on the PCB, 4 rounded, 1 rectangle, the rectangle one is reset pin, pull it to low will reset the module.
RichMo
Total Posts:
7 
Since:
2016-Jul-21 
From:
United Kingdom

RE:I2C Touch Stops working after USB upload, or plug in

Posted at:2016-11-22 08:12:36     

 Is there any way to do it without having to use an additioanl connection to my microcontroller?
RichMo
Total Posts:
7 
Since:
2016-Jul-21 
From:
United Kingdom

RE:I2C Touch Stops working after USB upload, or plug in

Posted at:2016-11-26 10:45:39     

 Is there no way to send a command over I2C to reset the touch part to make it work again?
Service
Total Posts:
414 
Since:
2013-Dec-22 
From:
Canada

RE:I2C Touch Stops working after USB upload, or plug in

Posted at:2016-11-26 13:59:25     

Sorry, no soft way to reset the module.
RichMo
Total Posts:
7 
Since:
2016-Jul-21 
From:
United Kingdom

RE:I2C Touch Stops working after USB upload, or plug in

Posted at:2016-11-28 14:16:31     

 I've noticed that sometimes after connecting USB, the touch continues to work? Why would this be? Is there some way I could exploit that? Why would it do this sometimes and not others?
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