It's the SD card library that's using all our RAM!

iot/main/main.ino

@@ -17,7 +17,6 @@
 void setup() {
 	Serial.begin(BAUD_PC);
 	Serial.println(F("[main] Starting"));
-	
 	random_begin();
 	
 	Serial.println(freeMemory(), DEC);
@@ -39,13 +38,15 @@ void setup() {
 	peripheral_unsilence(PIN_SPI_CS_SD);
 	
 	store_init();
-	Serial.println(freeMemory(), DEC); // 6
+	Serial.println(freeMemory(), DEC);
 	store_reading(id, gps_data);
+	Serial.println(freeMemory(), DEC);
 	#ifdef SD_DEBUG_ENABLED
 	store_debug(gps_data.time, 19);
 	#endif
+	Serial.println(freeMemory(), DEC);
 	store_close();
-	Serial.println(freeMemory(), DEC); // 7
+	Serial.println(freeMemory(), DEC);
 	
 	// ------------------------------------------------------------------------