LCD code for RPi

lcd.sh

#!/bin/bash

# mode: 0 = control
echo "1" > /sys/devices/virtual/gpio/gpio3/value

# 14 15 18 23 24 25 8 7

data=`echo $1 | xxd -b | cut -f 2 -d " "`


if [ "$data" = "00001010" ] ; then
        data="00100000"
fi

ONPINS="7 8 25 24 23 18 15 14"
for p in $ONPINS; do
        echo ${data:0:1} > /sys/devices/virtual/gpio/gpio$p/value
        data=${data:1}
done

echo "0" > /sys/devices/virtual/gpio/gpio2/value
#sleep 0.2;
echo "1" > /sys/devices/virtual/gpio/gpio2/value

lcdclear.sh

#!/bin/bash

# mode: 0 = control
echo "0" > /sys/devices/virtual/gpio/gpio3/value

# 14 15 18 23 24 25 8 7

data=10000000

ONPINS="14 15 18 23 24 25 8 7"
for p in $ONPINS; do
        echo ${data:0:1} > /sys/devices/virtual/gpio/gpio$p/value
        data=${data:1}
done

echo "0" > /sys/devices/virtual/gpio/gpio2/value
sleep 0.2;
echo "1" > /sys/devices/virtual/gpio/gpio2/value

lcdtext.sh

#!/bin/bash
./lcdclear

data=`echo $1 | sed "s/\\(.\\)/'\\1 /g"`
for x in $data ; do

        ./lcd ${x:1}
done