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Lcd Plate

Posted: Mon Jan 19, 2015 10:18 pm
by Tallahassee Dreamer
I recently built and installed a LCD Pi Plate on version 1 Rasp Pi. I walked through the tutorials and downloaded all required files. When I owe up the Pi I get the announced IP and am able to access the FPPD page and have selected the Pi 2x16 LCD Enabled box. When typing sudo in detect -y 0 the tool comes up but no device is detected. What could I be overlooking.?

Re: Lcd Plate

Posted: Mon Jan 19, 2015 10:28 pm
by DougieLawson
Wrong I2C.
sudo i2cdetect -y 1
Unless you have a very old model B.

Or the i2c-dev and i2c-bcm2708 modules aren't loaded or might be blacklisted.

Re: Lcd Plate

Posted: Mon Jan 19, 2015 10:38 pm
by Tallahassee Dreamer
DougieLawson wrote:Wrong I2C.
sudo i2cdetect -y 1
Unless you have a very old model B.

Or the i2c-dev and i2c-bcm2708 modules aren't loaded or might be blacklisted.
I believe have a model A not B I tried both codes 0 and 1 neither one worked. Also searched for blacklist files and not showed. I am new using Linux so I will check again.

Re: Lcd Plate

Posted: Mon Jan 19, 2015 10:47 pm
by Tallahassee Dreamer
Checked blacklist made sure I had a # in front of file name, did a reboot and still not able to detect.

Re: Lcd Plate

Posted: Tue Jan 20, 2015 12:19 am
by DougieLawson
Try the following commands
sudo modprobe i2c-bcm2708
sudo modprobe i2c-dev
lsmod
dmesg

Re: Lcd Plate

Posted: Tue Jan 20, 2015 2:02 am
by Tallahassee Dreamer
DougieLawson wrote:Try the following commands
sudo modprobe i2c-bcm2708 (modprobe: FATAL: Module i2c-bcm2708 not found.
sudo modprobe i2c-dev
lsmod
dmesg

Re: Lcd Plate

Posted: Tue Jan 20, 2015 2:04 am
by DougieLawson
What OS distro are you using?

Is your firmware/kernel up to date?

Re: Lcd Plate

Posted: Tue Jan 20, 2015 2:22 am
by Tallahassee Dreamer
DougieLawson wrote:What OS distro are you using?

Is your firmware/kernel up to date?
FPP Version v0.3.0-54-g3be8526
Os Build 0.3.0
Os Vernon Raspbian GNU/Linux 7
(WHEEZY)
Kernel Version 3.10.33+
Local Git Version 3be8526

Re: Lcd Plate

Posted: Tue Jan 20, 2015 2:35 am
by DougieLawson
Your kernel is two versions out of date (soon to be eight versions out of date).

sudo apt-get update && sudo apt-get dist-upgrade
sudo raspi-config # will then have an option to enable i2c and spi

Re: Lcd Plate

Posted: Tue Jan 20, 2015 3:15 am
by Tallahassee Dreamer
DougieLawson wrote:Your kernel is two versions out of date (soon to be eight versions out of date).

sudo apt-get update && sudo apt-get dist-upgrade
sudo raspi-config # will then have an option to enable i2c and spi
Followed first 2 steps
3rd step got message command not found
Went to about and nothing changed. I am still able to access pi using IP address

Re: Lcd Plate

Posted: Tue Jan 20, 2015 8:42 am
by DougieLawson
Get a new SDCard.
Get a copy of the latest Raspbian on it.

Re: Lcd Plate

Posted: Fri Jan 23, 2015 12:06 am
by Tallahassee Dreamer
It has been a few days and I have bought and loaded new NOOBS card and have everything working to the point of adding LCD Screen. I have performed all 4 above steps with no fatal errors. Be fore the LCD screen at least lit up, now nothing. When I ran command sudo i2cdetect -y 1 I get a message can not open file /dev/i2c/-1 no such file or directory, when I view modules the appropriate steps have been taken to edit script.

Re: Lcd Plate

Posted: Fri Jan 23, 2015 12:20 am
by DougieLawson
Have you enabled SPI & I2C by using sudo raspi-config (advanced options)?

Re: Lcd Plate

Posted: Fri Jan 23, 2015 12:27 am
by Tallahassee Dreamer
Yes I have

Re: Lcd Plate

Posted: Fri Jan 23, 2015 12:31 am
by Tallahassee Dreamer
DougieLawson wrote:Have you enabled SPI & I2C by using sudo raspi-config (advanced options)?
I have rechecked. In advanced options is there anything that should be disabled that would interfere with this operation?

Re: Lcd Plate

Posted: Fri Jan 23, 2015 12:34 am
by Tallahassee Dreamer
Also under blacklist is there anything that should not have # preceeding