diff --git a/hardware/PiFace/README.md b/hardware/PiFace/README.md
index 08cadc17..425b3fb0 100644
--- a/hardware/PiFace/README.md
+++ b/hardware/PiFace/README.md
@@ -1,7 +1,9 @@
 node-red-node-piface
 ====================
 
-<a href="http://nodered.org" target="_new">Node-RED</a> nodes to control a <a href="http://www.piface.org.uk/products/piface_digital/" target="_new">PiFace Digital</a> add-on board for a Raspberry-Pi.
+<a href="http://nodered.org" target="_new">Node-RED</a> nodes to control a
+<a href="http://www.piface.org.uk/products/piface_digital/" target="_new">PiFace Digital</a>
+add-on board for a Raspberry-Pi.
 
 Install
 -------
@@ -14,23 +16,41 @@ Run the following command in the root directory of your Node-RED install
 Pre-reqs
 --------
 
-Requires the WiringPi gpio command to be installed in order to work. See the <a href="http://wiringpi.com" target="new">WiringPi site</a> for details on how to do this.
+Device Tree **must** be turned off. To do this run
 
+    sudo raspi-config
+
+then select the `Advanced Options`, then `Device Tree`, and finally select `No`
+and `OK`. You will then need to reboot.
+
+It also requires the WiringPi gpio command to be installed in order to work.
+See the <a href="http://wiringpi.com" target="new">WiringPi site</a>
+for details on how to do this. The short version is...
+
+    sudo apt-get install git-core
+    git clone git://git.drogon.net/wiringPi
+    cd wiringPi
+    git pull origin
+    ./build
 
 Usage
 -----
 
-A pair of input and output Node-RED nodes for the Raspberry Pi PiFace Digital add-on board.
+A pair of input and output Node-RED nodes for the Raspberry Pi PiFace Digital
+add-on board.
 
-###Output
+### Output
 
-The PiFace output node will set the selected relay, LED, or pin on or off depending on the value passed in. Expects a <b>msg.payload</b> with either a 1 or 0 (or true or false).
+The PiFace output node will set the selected relay, LED, or pin on or off
+depending on the value passed in. Expects a <b>msg.payload</b> with either a
+1 or 0 (or true or false).
 
 Requires the WiringPi gpio command in order to work (see pre-reqs).
 
-###Input
+### Input
 
-The PiFace input node generates a <b>msg.payload</b> with either a 0 or 1 depending on the state of the input pin.
+The PiFace input node generates a <b>msg.payload</b> with either a 0 or 1
+depending on the state of the input pin.
 
 You may also enable the input pullup resistor if required.
 
@@ -38,4 +58,5 @@ The <b>msg.topic</b> is set to <i>piface/{the pin number}</i>
 
 Requires the WiringPi gpio command in order to work (see pre-reqs).
 
-<b>Note:</b> This node currently polls the pin every 250mS. This is not ideal as it loads the cpu.
+<b>Note:</b> This node currently polls the pin every 250mS. This is not ideal
+as it loads the cpu.
diff --git a/hardware/PiFace/package.json b/hardware/PiFace/package.json
index bb0dfa44..a86636cf 100644
--- a/hardware/PiFace/package.json
+++ b/hardware/PiFace/package.json
@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-piface",
-    "version"       : "0.0.3",
+    "version"       : "0.0.4",
     "description"   : "Node-RED nodes to read from and write to a PiFace Digital Raspberry Pi add-on board",
     "dependencies"  : {
     },