diff --git a/README.md b/README.md
index 938f30a..0ff1c75 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,32 @@ Investigating the MangoPi MQ pro's IO capabilities
 My unit is connected to a Waveshare LORA hat, I want to make it work.
 
 ### MQ Pro Pins:
+This is derived from the schematics; showing the specific GPIO pin assignments on the MQ Pro GPIO connector
+
 ```text
-3v3 --------- o  o ---------- 5v
-P   --------- o  o ---------- 5v
+looking down, Pin1 is top left, Pin40 bottom right
+
+        3v3  -- o o -- 5v
+    PG13 ------ o o -- 5v
+    PG12 ------ o o -- GND
+    PB7  ------ o o ------ PB8
+         GND -- o o ------ PB9
+    PD21 ------ o o ------ PB5
+    PD22 ------ o o -- GND
+    PB0  ------ o o ------ PB1
+         3v3 -- o o ------ PD14
+    PD12 ------ o o -- GND
+    PD13 ------ o o ------ PC1
+    PD11 ------ o o ------ PD10
+         GND -- o o ------ PD15
+    PE17 ------ o o ------ PE16
+    PB10 ------ o o -- GND
+    PB11 ------ o o ------ PC0
+    PB12 ------ o o -- GND
+    PB6  ------ o o ------ PB2
+    PD17 ------ o o ------ PB3
+         GND -- o o ------ PB4
+
 ```