diff --git a/private_dot_config/i3blocks/wifi/README.md b/private_dot_config/i3blocks/wifi/README.md
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+# wifi
+
+Show the strength of your wifi connection.
+If no instance is specified, wlan0 is used.
+
+![](wifi.png)
+
+# Config
+
+```
+[wifi]
+command=$SCRIPT_DIR/wifi
+label=wifi:
+#INTERFACE=wlan0
+interval=60
+```
diff --git a/private_dot_config/i3blocks/wifi/executable_wifi b/private_dot_config/i3blocks/wifi/executable_wifi
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+++ b/private_dot_config/i3blocks/wifi/executable_wifi
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+#!/usr/bin/env bash
+# Copyright (C) 2014 Alexander Keller <github@nycroth.com>
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#------------------------------------------------------------------------
+if [[ -z "$INTERFACE" ]] ; then
+    INTERFACE="${BLOCK_INSTANCE:-wlan0}"
+fi
+#------------------------------------------------------------------------
+
+COLOR_GE80=${COLOR_GE80:-#00FF00}
+COLOR_GE60=${COLOR_GE60:-#FFF600}
+COLOR_GE40=${COLOR_GE40:-#FFAE00}
+COLOR_LOWR=${COLOR_LOWR:-#FF0000}
+COLOR_DOWN=${COLOR_DOWN:-#FF0000}
+
+# As per #36 -- It is transparent: e.g. if the machine has no battery or wireless
+# connection (think desktop), the corresponding block should not be displayed.
+[[ ! -d /sys/class/net/${INTERFACE}/wireless ]] && exit
+
+# If the wifi interface exists but no connection is active, "down" shall be displayed.
+if [[ "$(cat /sys/class/net/$INTERFACE/operstate)" = 'down' ]]; then
+    echo "down"
+    echo "down"
+    echo $COLOR_DOWN
+    exit
+fi
+
+#------------------------------------------------------------------------
+
+QUALITY=$(iw dev ${INTERFACE} link | grep 'dBm$' | grep -Eoe '-[0-9]{2}' | awk '{print  ($1 > -50 ? 100 :($1 < -100 ? 0 : ($1+100)*2))}')
+
+#------------------------------------------------------------------------
+
+echo $QUALITY% # full text
+echo $QUALITY% # short text
+
+# color
+if [[ $QUALITY -ge 80 ]]; then
+    echo $COLOR_GE80
+elif [[ $QUALITY -ge 60 ]]; then
+    echo $COLOR_GE60
+elif [[ $QUALITY -ge 40 ]]; then
+    echo $COLOR_GE40
+else
+    echo $COLOR_LOWR
+fi
diff --git a/private_dot_config/i3blocks/wifi/i3blocks.conf b/private_dot_config/i3blocks/wifi/i3blocks.conf
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+++ b/private_dot_config/i3blocks/wifi/i3blocks.conf
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+[wifi]
+command=$SCRIPT_DIR/wifi
+label=wifi:
+#INTERFACE=wlan0
+interval=60
+#COLOR_GE80=#00FF00
+#COLOR_GE60=#FFF600
+#COLOR_GE40=#FFAE00
+#COLOR_LOWR=#FF0000
+#COLOR_DOWN=#FF0000
diff --git a/private_dot_config/i3blocks/wifi/wifi.png b/private_dot_config/i3blocks/wifi/wifi.png
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+++ b/private_dot_config/i3blocks/wifi/wifi.png
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