Pages: [1]   Go Down
Author Topic: arduino + LCD fades until other applications are done.  (Read 482 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Karma: 0
Posts: 23
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

We have a LCD display and 4 switches to turn on relays for certain applications.  I'm using atmega1280 and the problem that we have in our project is that the LCD display would fade every time the switches were powered.  Once the switches are off, LCD display goes back to normal.
Another problem is that when the switches are pressed, the response is slower unless it is firmly pressed. 

Is it because there is not enough voltage is supplied with everything ? Or a current problem?

 I am powering the arduino through USB cable btw, which is normally 5 volts I think.

 How can I solve this issue?

Will using a higher external power supply (9-12V) solve this problem?
« Last Edit: April 22, 2011, 01:57:20 pm by faytoceanz3 » Logged

United States (Texas)
Offline Offline
God Member
Karma: 3
Posts: 525
Arduino socks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

do you have a part number for the relays? and can you post a quick diagram of how its connected.

Pages: [1]   Go Up
Jump to: