diff --git a/analogSensor.py b/analogSensor.py
index 0050a9d..a9b9139 100644
--- a/analogSensor.py
+++ b/analogSensor.py
@@ -1,10 +1,24 @@
 from gpiozero import MCP3008
 from time import sleep
 
-#remember to enable SPI in raspi-config > interfaces before you run this the first time
+ ##################
+# Before you start #
+##################
+# remember to enable SPI in raspi-config > interfaces before you run this the first time
+# see method one here: https://www.raspberrypi-spy.co.uk/2014/08/enabling-the-spi-interface-on-the-raspberry-pi/
 
-#How to wire the MCP3008: https://learn.adafruit.com/raspberry-pi-analog-to-digital-converters/mcp3008
-#gpiozero documentation about MCP3008: https://gpiozero.readthedocs.io/en/stable/api_spi.html
+ #################
+# Wiring MCP3008 #
+################
+# https://learn.adafruit.com/raspberry-pi-analog-to-digital-converters/mcp3008
+# gpiozero documentation about MCP3008: https://gpiozero.readthedocs.io/en/stable/api_spi.html
+
+ #################
+# Wiring sensors #
+#################
+# This code assumes you have an LDR on channel 0 of the mcp3008
+# You can wire one up like so: https://maker.pro/raspberry-pi/tutorial/how-to-read-an-ldr-sensor-with-raspberry-pi-using-mcp3008
+# However, you could use any other analog sensor (up to eight)
 
 ldr = MCP3008(channel=0, device=0)