Tallahassee Dreamer
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Lcd Plate

Mon Jan 19, 2015 10:18 pm

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.?

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DougieLawson
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Re: Lcd Plate

Mon Jan 19, 2015 10:28 pm

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.
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Tallahassee Dreamer
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Re: Lcd Plate

Mon Jan 19, 2015 10:38 pm

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.

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Re: Lcd Plate

Mon Jan 19, 2015 10:47 pm

Checked blacklist made sure I had a # in front of file name, did a reboot and still not able to detect.

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DougieLawson
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Re: Lcd Plate

Tue Jan 20, 2015 12:19 am

Try the following commands
sudo modprobe i2c-bcm2708
sudo modprobe i2c-dev
lsmod
dmesg
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Re: Lcd Plate

Tue Jan 20, 2015 2:02 am

DougieLawson wrote:Try the following commands
sudo modprobe i2c-bcm2708 (modprobe: FATAL: Module i2c-bcm2708 not found.
sudo modprobe i2c-dev
lsmod
dmesg

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DougieLawson
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Re: Lcd Plate

Tue Jan 20, 2015 2:04 am

What OS distro are you using?

Is your firmware/kernel up to date?
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Re: Lcd Plate

Tue Jan 20, 2015 2:22 am

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

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DougieLawson
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Re: Lcd Plate

Tue Jan 20, 2015 2:35 am

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
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Re: Lcd Plate

Tue Jan 20, 2015 3:15 am

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

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DougieLawson
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Re: Lcd Plate

Tue Jan 20, 2015 8:42 am

Get a new SDCard.
Get a copy of the latest Raspbian on it.
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Re: Lcd Plate

Fri Jan 23, 2015 12:06 am

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.

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DougieLawson
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Re: Lcd Plate

Fri Jan 23, 2015 12:20 am

Have you enabled SPI & I2C by using sudo raspi-config (advanced options)?
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Tallahassee Dreamer
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Re: Lcd Plate

Fri Jan 23, 2015 12:27 am

Yes I have

Tallahassee Dreamer
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Re: Lcd Plate

Fri Jan 23, 2015 12:31 am

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?

Tallahassee Dreamer
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Re: Lcd Plate

Fri Jan 23, 2015 12:34 am

Also under blacklist is there anything that should not have # preceeding

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