diff --git a/camera_i2c b/camera_i2c
index a977e5d..aa358cb 100755
--- a/camera_i2c
+++ b/camera_i2c
@@ -6,6 +6,7 @@
 
 # http://elinux.org/RPi_HardwareHistory#Board_Revision_History
 rev=`cat /proc/cpuinfo | grep Revision | awk '{print substr($NF,length($NF)-5,6)}'`
+r=`uname -r | head --bytes 1`
 echo "setting GPIO for board revsion: $rev"
 
 case $rev in
@@ -93,6 +94,9 @@ raspi-gpio set 2 dh
 
 'a02082'|'a22082'|'a020d3'|'9020e0'|'a03111'|'b03111'|'c03111'|'a03112'|'b03112'|'c03112')
 echo "Raspberry Pi3B / Pi3B+ / 3A / 4B(1G/2G/4G)"
+if [ "$r" = "4" ]
+then
+i2c=0
 # https://www.raspberrypi.org/forums/viewtopic.php?f=38&t=120702&start=100
 # Pins 44&45 Alt1=i2c0, alt2=i2c1
 # i2c0 can be on pins 0 and 1, so make sure they are not set to alt0
@@ -106,15 +110,23 @@ raspi-gpio set 44 a1
 raspi-gpio set 45 ip
 raspi-gpio set 45 a1
 #shutdown
+else
+i2c=10
+fi
 # you need this one: https://github.com/6by9/rpi3-gpiovirtbuf
 #raspi-gpio set 41 1
-./rpi3-gpiovirtbuf s 133 1
+`dirname $0`/rpi3-gpiovirtbuf s 133 1
 #LED
 #raspi-gpio set 32 1
-i2cdetect -y 0
+i2cdetect -y $i2c
 ;;
 
 *)
 echo "Failed: don't know how to set GPIO for this board!"
 ;;
 esac
+
+if [ "$r" = "5" ]
+then
+echo "Use 'raspiraw -y 10' to communicate with the sensor"
+fi
diff --git a/imx477_modes.h b/imx477_modes.h
index a198632..46997f9 100644
--- a/imx477_modes.h
+++ b/imx477_modes.h
@@ -830,6 +830,22 @@ struct mode_def imx477_modes[] = {
       .term          = {0, 0},
       .black_level   = 256,
    },
+   {
+      .regs          = imx477_2028x1080_regs,
+      .num_regs      = NUM_ELEMENTS(imx477_2028x1080_regs),
+      .width         = 2028,
+      .height        = 1080,
+      .encoding      = 0,
+      .order         = BAYER_ORDER_RGGB,
+      .native_bit_depth = 12,
+      .image_id      = 0x2C,
+      .data_lanes    = 2,
+      .min_vts       = 1134,
+      .line_time_ns  = 0x31c4,
+      .timing        = {0, 0, 0, 0, 0},
+      .term          = {0, 0},
+      .black_level   = 256,
+   },
    {
       .regs          = imx477_2028x1520_regs,
       .num_regs      = NUM_ELEMENTS(imx477_2028x1520_regs),
@@ -847,17 +863,17 @@ struct mode_def imx477_modes[] = {
       .black_level   = 256,
    },
    {
-      .regs          = imx477_2028x1080_regs,
-      .num_regs      = NUM_ELEMENTS(imx477_2028x1080_regs),
-      .width         = 2028,
-      .height        = 1080,
+      .regs          = imx477_4056x3040_regs,
+      .num_regs      = NUM_ELEMENTS(imx477_4056x3040_regs),
+      .width         = 4056,
+      .height        = 3040,
       .encoding      = 0,
       .order         = BAYER_ORDER_RGGB,
       .native_bit_depth = 12,
       .image_id      = 0x2C,
       .data_lanes    = 2,
-      .min_vts       = 1134,
-      .line_time_ns  = 0x31c4,
+      .min_vts       = 3072,
+      .line_time_ns  = 0x5dc0,
       .timing        = {0, 0, 0, 0, 0},
       .term          = {0, 0},
       .black_level   = 256,
diff --git a/tools/1012x760 b/tools/1012x760
new file mode 100755
index 0000000..33cd6e4
--- /dev/null
+++ b/tools/1012x760
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+if [ "$1" = "" ]; then echo "format: `basename $0` ms"; exit; fi
+
+r=`uname -r | head --bytes 1`
+if [ "$r" = "4" ]; then i2c=0; else i2c=10; fi
+
+echo "removing /dev/shm/out.*.raw"
+rm -f /dev/shm/out.*.raw
+
+if [ "$2" = "" ]; then fps=195; else fps=$2; fi
+echo "capturing frames for ${1}ms with ${fps}fps requested"
+raspiraw -md 4 -y $i2c -vf -hf -t $1 -ts tstamps.dirty -hd0 hd0.32k -sr 1 -o /dev/shm/out.%04d.raw 2>/dev/null >/dev/null
+
+grep -v ",0$" tstamps.dirty | grep -v ",-[0-9]*$" > tstamps.csv
+
+us=`cut -f1 -d, tstamps.csv | sort -n | uniq -c | sort -n | tail -1 | cut -b9-`
+l=`wc --lines tstamps.csv | cut -f1 -d\ `
+echo -e "$l frames were captured\nmajority framerate $((1000000 / $us))fps" 
+
+echo "frame delta time[us] distribution"
+cut -f1 -d, tstamps.csv | sort -n | uniq -c
+
+D=`echo "0123456789" | sed "s/\`echo $((1000000/$fps)) | cut -b1\`//"`
+
+echo "after skip frame indices (middle column)"
+grep "^[$D]" tstamps.csv | sed "s/^/> /"
+
+skips=`grep "^[$D]" tstamps.csv | wc --lines | cut -f1 -d\ `
+stamps=`wc --lines tstamps.csv | cut -f1 -d\ `
+per=`expr \( 100 \* $skips \) / \( $skips + $stamps \)`
+echo "$per% frame skips"
+
+fst=`head -1 tstamps.csv | cut -f3 -d,`
+lst=`tail -1 tstamps.csv | cut -f3 -d,`
+dif=`expr $lst - $fst`
+dif2=`expr $dif / 2`
+avg=`expr \( 1000000 \* \( $l - 1 \) + $dif2 \) / $dif`
+echo "average framerate ${avg}fps"
diff --git a/tools/2028x1080 b/tools/2028x1080
new file mode 100755
index 0000000..2d5d8ca
--- /dev/null
+++ b/tools/2028x1080
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+if [ "$1" = "" ]; then echo "format: `basename $0` ms"; exit; fi
+
+r=`uname -r | head --bytes 1`
+if [ "$r" = "4" ]; then i2c=0; else i2c=10; fi
+
+echo "removing /dev/shm/out.*.raw"
+rm -f /dev/shm/out.*.raw
+
+if [ "$2" = "" ]; then fps=57; else fps=$2; fi
+echo "capturing frames for ${1}ms with ${fps}fps requested"
+raspiraw -md 1 -y $i2c -vf -hf -t $1 -ts tstamps.dirty -hd0 hd0.32k -sr 1 -o /dev/shm/out.%04d.raw 2>/dev/null >/dev/null
+
+grep -v ",0$" tstamps.dirty | grep -v ",-[0-9]*$" > tstamps.csv
+
+us=`cut -f1 -d, tstamps.csv | sort -n | uniq -c | sort -n | tail -1 | cut -b9-`
+l=`wc --lines tstamps.csv | cut -f1 -d\ `
+echo -e "$l frames were captured\nmajority framerate $((1000000 / $us))fps" 
+
+echo "frame delta time[us] distribution"
+cut -f1 -d, tstamps.csv | sort -n | uniq -c
+
+D=`echo "0123456789" | sed "s/\`echo $((1000000/$fps)) | cut -b1\`//"`
+
+echo "after skip frame indices (middle column)"
+grep "^[$D]" tstamps.csv | sed "s/^/> /"
+
+skips=`grep "^[$D]" tstamps.csv | wc --lines | cut -f1 -d\ `
+stamps=`wc --lines tstamps.csv | cut -f1 -d\ `
+per=`expr \( 100 \* $skips \) / \( $skips + $stamps \)`
+echo "$per% frame skips"
+
+fst=`head -1 tstamps.csv | cut -f3 -d,`
+lst=`tail -1 tstamps.csv | cut -f3 -d,`
+dif=`expr $lst - $fst`
+dif2=`expr $dif / 2`
+avg=`expr \( 1000000 \* \( $l - 1 \) + $dif2 \) / $dif`
+echo "average framerate ${avg}fps"
diff --git a/tools/2028x1520 b/tools/2028x1520
new file mode 100755
index 0000000..a48b006
--- /dev/null
+++ b/tools/2028x1520
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+if [ "$1" = "" ]; then echo "format: `basename $0` ms"; exit; fi
+
+r=`uname -r | head --bytes 1`
+if [ "$r" = "4" ]; then i2c=0; else i2c=10; fi
+
+echo "removing /dev/shm/out.*.raw"
+rm -f /dev/shm/out.*.raw
+
+if [ "$2" = "" ]; then fps=41; else fps=$2; fi
+echo "capturing frames for ${1}ms with ${fps}fps requested"
+raspiraw -md 2 -y $i2c -vf -hf -t $1 -ts tstamps.dirty -hd0 hd0.32k -sr 1 -o /dev/shm/out.%04d.raw 2>/dev/null >/dev/null
+
+grep -v ",0$" tstamps.dirty | grep -v ",-[0-9]*$" > tstamps.csv
+
+us=`cut -f1 -d, tstamps.csv | sort -n | uniq -c | sort -n | tail -1 | cut -b9-`
+l=`wc --lines tstamps.csv | cut -f1 -d\ `
+echo -e "$l frames were captured\nmajority framerate $((1000000 / $us))fps" 
+
+echo "frame delta time[us] distribution"
+cut -f1 -d, tstamps.csv | sort -n | uniq -c
+
+D=`echo "0123456789" | sed "s/\`echo $((1000000/$fps)) | cut -b1\`//"`
+
+echo "after skip frame indices (middle column)"
+grep "^[$D]" tstamps.csv | sed "s/^/> /"
+
+skips=`grep "^[$D]" tstamps.csv | wc --lines | cut -f1 -d\ `
+stamps=`wc --lines tstamps.csv | cut -f1 -d\ `
+per=`expr \( 100 \* $skips \) / \( $skips + $stamps \)`
+echo "$per% frame skips"
+
+fst=`head -1 tstamps.csv | cut -f3 -d,`
+lst=`tail -1 tstamps.csv | cut -f3 -d,`
+dif=`expr $lst - $fst`
+dif2=`expr $dif / 2`
+avg=`expr \( 1000000 \* \( $l - 1 \) + $dif2 \) / $dif`
+echo "average framerate ${avg}fps"
diff --git a/tools/4056x3040 b/tools/4056x3040
new file mode 100755
index 0000000..6d98a2a
--- /dev/null
+++ b/tools/4056x3040
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+if [ "$1" = "" ]; then echo "format: `basename $0` ms"; exit; fi
+
+r=`uname -r | head --bytes 1`
+if [ "$r" = "4" ]; then i2c=0; else i2c=10; fi
+
+echo "removing /dev/shm/out.*.raw"
+rm -f /dev/shm/out.*.raw
+
+if [ "$2" = "" ]; then fps=11; else fps=$2; fi
+echo "capturing frames for ${1}ms with ${fps}fps requested"
+raspiraw -md 3 -y $i2c -vf -hf -t $1 -ts tstamps.dirty -hd0 hd0.32k -sr 1 -o /dev/shm/out.%04d.raw 2>/dev/null >/dev/null
+
+grep -v ",0$" tstamps.dirty | grep -v ",-[0-9]*$" > tstamps.csv
+
+us=`cut -f1 -d, tstamps.csv | sort -n | uniq -c | sort -n | tail -1 | cut -b9-`
+l=`wc --lines tstamps.csv | cut -f1 -d\ `
+echo -e "$l frames were captured\nmajority framerate $((1000000 / $us))fps" 
+
+echo "frame delta time[us] distribution"
+cut -f1 -d, tstamps.csv | sort -n | uniq -c
+
+D=`echo "0123456789" | sed "s/\`echo $((1000000/$fps)) | cut -b1\`//"`
+
+echo "after skip frame indices (middle column)"
+grep "^[$D]" tstamps.csv | sed "s/^/> /"
+
+skips=`grep "^[$D]" tstamps.csv | wc --lines | cut -f1 -d\ `
+stamps=`wc --lines tstamps.csv | cut -f1 -d\ `
+per=`expr \( 100 \* $skips \) / \( $skips + $stamps \)`
+echo "$per% frame skips"
+
+fst=`head -1 tstamps.csv | cut -f3 -d,`
+lst=`tail -1 tstamps.csv | cut -f3 -d,`
+dif=`expr $lst - $fst`
+dif2=`expr $dif / 2`
+avg=`expr \( 1000000 \* \( $l - 1 \) + $dif2 \) / $dif`
+echo "average framerate ${avg}fps"
diff --git a/tools/gifenc.sh b/tools/gifenc.sh
index 662bb49..3a013f9 100755
--- a/tools/gifenc.sh
+++ b/tools/gifenc.sh
@@ -6,7 +6,8 @@
 palette="/tmp/palette.png"
 
 #filters="fps=15,scale=320:-1:flags=lanczos"
-filters="fps=25,scale=640:-1:flags=lanczos"
+#filters="fps=25,scale=640:-1:flags=lanczos"
+filters="fps=25,scale=1012:-1:flags=lanczos"
 
 ffmpeg -v warning -i $1 -vf "$filters,palettegen" -y $palette
 ffmpeg -v warning -i $1 -i $palette -lavfi "$filters [x]; [x][1:v] paletteuse" -y $2