diff --git a/avr/modules/sgp30/main.asm b/avr/modules/sgp30/main.asm
index 9332a5a..e67de56 100644
--- a/avr/modules/sgp30/main.asm
+++ b/avr/modules/sgp30/main.asm
@@ -157,10 +157,22 @@ sgp30CheckPresence:
 
 
 
+; ---------------------------------------------------------------------------
+; @routine SGP30_EverySecond
+;
+;
+; @return CFLAG set if okay, clear on error
+; @clobbers R16, R17, R18, R19, R20, R21, R22
+
+SGP30_EverySecond:
+  rjmp SGP30_Measure  ; (R16, R17, R18, R19, R20, R21, R22)
+; @end
+
+
+
 ; ---------------------------------------------------------------------------
 ; @routine SGP30_Measure
 ;
-; Expects interrupts being disabled!
 ;
 ; @return CFLAG set if okay, clear on error
 ; @clobbers R16, R17, R18, R19, R20, R21, R22