diff --git a/bbn_m5atomS3_lite_DS18B20/README.md b/bbn_m5atomS3_lite_DS18B20/README.md
index 58bb13b..df50ee1 100644
--- a/bbn_m5atomS3_lite_DS18B20/README.md
+++ b/bbn_m5atomS3_lite_DS18B20/README.md
@@ -12,6 +12,7 @@ Can be used for
 - Fridge temperature
 - Engine coolant temperature
 - Batteries bank temperature
+- MPPT controller temperature
 - etc
 
 Supports multiple 1-wire Dallas Temperature sensors.