smart controller blacks out when inserting SD card
Posted by Nicken83
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smart controller blacks out when inserting SD card October 31, 2015 10:00AM |
Registered: 8 years ago Posts: 43 |
When i print using pronterface i have a clear smartscreen (everything readable!), when i disconnect my pc, still no problem, but the moment i insert a SD card when not connected to PC The smart controller blacks out. At that moment it's still readable (very difficult from a specific angle), but the clearness can't be adjusted enough to make it comfortable to read.
Any ideas on this?
Using a reprap discount smart controller
Beginner with a Prusa I3, Sintron frame and extruder, Ramps 1.4, astrosyn steppers.
Any ideas on this?
Using a reprap discount smart controller
Beginner with a Prusa I3, Sintron frame and extruder, Ramps 1.4, astrosyn steppers.
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Re: smart controller blacks out when inserting SD card October 31, 2015 02:14PM |
Registered: 8 years ago Posts: 5,232 |
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Re: smart controller blacks out when inserting SD card November 03, 2015 06:45AM |
Registered: 8 years ago Posts: 23 |
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Re: smart controller blacks out when inserting SD card November 03, 2015 06:48AM |
Registered: 8 years ago Posts: 43 |
Yes I have, same problem.
Weird thing is it's only happening when I disconnect from PC. Also with no SD card inserted.
As long the printer is connected to PC, there is no problem.
First post in this thread isn't entirely correct.
Edited 1 time(s). Last edit at 11/03/2015 06:50AM by Nicken83.
Weird thing is it's only happening when I disconnect from PC. Also with no SD card inserted.
As long the printer is connected to PC, there is no problem.
First post in this thread isn't entirely correct.
Edited 1 time(s). Last edit at 11/03/2015 06:50AM by Nicken83.
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Re: smart controller blacks out when inserting SD card November 03, 2015 05:36PM |
Registered: 8 years ago Posts: 43 |
I've discovered that the display is getting a boost when RAMPS is plugged in usb. If i turn the contrast pot all the way down when plugged in, plug it out, and then turn the contrast up, it is slightly better. However when I pull the SD card out and put it back in, it is back to unreadable. Could this be a problem with the power supply? Where can check the power supply for the display?
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Re: smart controller blacks out when inserting SD card November 06, 2015 06:49AM |
Registered: 10 years ago Posts: 444 |
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Re: smart controller blacks out when inserting SD card November 10, 2015 11:26AM |
Registered: 8 years ago Posts: 43 |
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Re: smart controller blacks out when inserting SD card November 10, 2015 01:58PM |
Registered: 8 years ago Posts: 43 |
Another thing is, when not connected to pc, the main screen says "SD card inserted", but in the next menu it says "no SD card".
When connected to the pc, i can start a print from the SD using the smart controller without a problem. Could this be the same problem as the one described above?
When connected to the pc, i can start a print from the SD using the smart controller without a problem. Could this be the same problem as the one described above?
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Re: smart controller blacks out when inserting SD card November 17, 2015 06:35AM |
Registered: 8 years ago Posts: 43 |
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Re: smart controller blacks out when inserting SD card November 18, 2015 02:40AM |
Registered: 8 years ago Posts: 5,232 |
You can measure 5V on the endstop-headers.
If the arduino regulator doesn't supply sufficient power, you may switch to an external 5V source permanently ( 2 Amp USB-charger when not connected to PC or with OTG cable)
I prefer a RC-UBEC as 5V external power, but then you have to remove D2 on the Ramps.
-Olaf
If the arduino regulator doesn't supply sufficient power, you may switch to an external 5V source permanently ( 2 Amp USB-charger when not connected to PC or with OTG cable)
I prefer a RC-UBEC as 5V external power, but then you have to remove D2 on the Ramps.
-Olaf
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Re: smart controller blacks out when inserting SD card November 18, 2015 03:37AM |
Registered: 8 years ago Posts: 43 |
Thx for the help!!
I measure only 3V when completely powered by psu. When usb is connected a solid 5V.
The psu however gives 12V as it supposed to.
I guess it will be the mega board... (Any solutions to solve this?)
For now I'm happy with Olaf's solution. I use a 5 V gsm adapter to power the mega board with the usb cable.
I measure only 3V when completely powered by psu. When usb is connected a solid 5V.
The psu however gives 12V as it supposed to.
I guess it will be the mega board... (Any solutions to solve this?)
For now I'm happy with Olaf's solution. I use a 5 V gsm adapter to power the mega board with the usb cable.
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