diff --git a/mystrom-motion-sensor/README.md b/mystrom-motion-sensor/README.md
index d71e137..d006b47 100644
--- a/mystrom-motion-sensor/README.md
+++ b/mystrom-motion-sensor/README.md
@@ -18,20 +18,29 @@ MAIN (antenna on the left)
 
 (○) TP7/GND
                       (○) TP5/GPIO0
-
-
 ```
 
 ## Schematics
 
-```
-━━━┓
- E ┣━ I2C bus (GPIO22/GPIO19) ━ TSL2561
- S ┣                          ━ TMP102
- P ┣━ Plus key (GPIO14)
-   ┣━ PIR sensor (GPIO33)
- 3 ┣━ Red LED (GPIO16)
- 2 ┣━ White LED (GPIO17)
-━━━┛
+
+```mermaid
+erDiagram
+    ESP32 {
+    }
+
+    ESP32 ||--|| GPIOs : ""
+    ESP32 ||--|| I2C : ""
+
+    I2C {
+        GPIO22-GPIO19 TSL2561
+        GPIO22-GPIO19 TMP102
+    }
+
+    GPIOs {
+        GPIO14 Plus-key
+        GPIO33 PIR-sensor
+        GPIO16 Red-LED
+        GPIO17 White-LED
+    }
 
 ```
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