diff --git a/lorawan.cpp b/lorawan.cpp index 9bf74769f3ad1f74ad42d5a0d1114e5357554683..9dc37ff02ed5b541a20908902f621b170fcbf1ba 100644 --- a/lorawan.cpp +++ b/lorawan.cpp @@ -183,7 +183,7 @@ namespace lorawan { } } - void preparePayloadIfTimeHasCome(int16_t co2, float temperature, float humidity) { + void preparePayloadIfTimeHasCome(const int16_t &co2, const float &temperature, const float &humidity) { static unsigned long last_sent_at = 0; unsigned long now = seconds(); if (now - last_sent_at > config::lorawan_sending_interval) {