diff --git a/docs/pimoroni_fan_shim.md b/docs/pimoroni_fan_shim.md
index 0703c94..6e25ea1 100644
--- a/docs/pimoroni_fan_shim.md
+++ b/docs/pimoroni_fan_shim.md
@@ -4,12 +4,28 @@ The below commands will setup the Pimoroni Fan Shim. The commands will turn the
 
 ``` sh
 
+sudo -sHu root
+
+# Move boot serial -> UART5 to avoid colission between UART1 and fanshim
+nano -w /boot/firmware/usercfg.txt
+# Add following to top of file
+dtoverlay=uart5
+nano -w /boot/firmware/cmdline.txt
+# switch console=serial0,115200 to console=ttyAMA1,115200
+
+systemctl reboot
+
+# New pins
+# Pin 32 : TX (connect to RX on adapter)
+# Pin 33 : RX (connect to TX on adapter)
+
+# Setup fanshim
 sudo -sHu root
 git clone https://github.com/pimoroni/fanshim-python.git /opt/fanshim-python
 cd /opt/fanshim-python
 ./install.sh
 cd examples
-sudo ./install-service.sh --on-threshold 55 --off-threshold 45 --delay 5
+sudo ./install-service.sh --on-threshold 55 --off-threshold 45 --delay 5 --brightness 127
 systemctl enable --now pimoroni-fanshim.service
 
 ```