by awelles » Mon Oct 22, 2007 12:36 pm
I purchased a TC553/852 LCD module from you around August 2007. I had taken a break working on my project for about three weeks over my winter break (I'm a student), and when I returned, my module was unresponsive.
The first thing I noticed is that when I applied 5V to power the unit, the backlight was extremely dim. When I connected the unit to my microcontroller's USART, the unit did not respond. I also noticed that over time, the backlight seemed to grow slightly brighter.
I wanted to make sure that it wasn't my code that was wrong, so I put the jumpers back on and hooked it up to the control panel program included with the module, and still no response.
At this point, I was clueless as to what the problem could be, since it was working 100% when I left it 3 weeks earlier before break, so I called a friend that had the same module just to make sure that my control panel and microcontroller was working. Low and behold, my colleague's module worked fine on both test platforms.
So now here I am wondering why what is wrong with the module and why it decided to quit working after being functional when I left it last.
I purchased a TC553/852 LCD module from you around August 2007. I had taken a break working on my project for about three weeks over my winter break (I'm a student), and when I returned, my module was unresponsive.
The first thing I noticed is that when I applied 5V to power the unit, the backlight was extremely dim. When I connected the unit to my microcontroller's USART, the unit did not respond. I also noticed that over time, the backlight seemed to grow slightly brighter.
I wanted to make sure that it wasn't my code that was wrong, so I put the jumpers back on and hooked it up to the control panel program included with the module, and still no response.
At this point, I was clueless as to what the problem could be, since it was working 100% when I left it 3 weeks earlier before break, so I called a friend that had the same module just to make sure that my control panel and microcontroller was working. Low and behold, my colleague's module worked fine on both test platforms.
So now here I am wondering why what is wrong with the module and why it decided to quit working after being functional when I left it last.