refactor(minion): store string constants in flash memory

1 files changed, 12 insertions, 11 deletions

diff --git a/minion/src/gymnasiearbete.cpp b/minion/src/gymnasiearbete.cpp
index 5c4f725..41be0ea 100644
--- a/minion/src/gymnasiearbete.cpp
+++ b/minion/src/gymnasiearbete.cpp
@@ -7,6 +7,7 @@
 
 #include <Arduino.h>
 #include <SoftwareSerial.h>
+#include <avr/pgmspace.h>
 #include <string.h>
 
 constexpr auto HTTP_PORT = 80U;
@@ -43,8 +44,8 @@ void setup()
 
 	auto wifi_module_connected = wifi_module.test();
 
-	Serial.print("Wifi module connected: ");
-	Serial.println(wifi_module_connected ? "Yes" : "No");
+	Serial.print(F("Wifi module connected: "));
+	Serial.println(wifi_module_connected ? F("Yes") : F("No"));
 
 	if (!wifi_module_connected)
 	{
@@ -59,8 +60,8 @@ void setup()
 		wifi_module.connect_to_wifi(WIFI_SSID, WIFI_PASSWORD);
 
 	Serial.print(
-		wifi_connect_success ? "Connected to wifi network '"
-							 : "Failed to connect to wifi network '"
+		wifi_connect_success ? F("Connected to wifi network '")
+							 : F("Failed to connect to wifi network '")
 	);
 	Serial.print(WIFI_SSID);
 	Serial.println("'");
@@ -76,7 +77,7 @@ void setup()
 
 	char local_ip[MAX_NETWORK_MODULE_RESPONSE_LENGTH] = "";
 
-	Serial.print("IP address: ");
+	Serial.print(F("IP address: "));
 	Serial.println(wifi_module.get_local_ip(local_ip));
 
 	wifi_module.set_multiple_connections_enabled(true);
@@ -102,16 +103,16 @@ void loop()
 		return;
 	}
 
-	Serial.print("Connection ID: ");
+	Serial.print(F("Connection ID: "));
 	Serial.println(connection.id());
 
-	Serial.print("Request method: ");
+	Serial.print(F("Request method: "));
 	Serial.println(http_request_method_strs[static_cast<size_t>(request.method())]);
 
-	Serial.print("Request HTTP version: ");
+	Serial.print(F("Request HTTP version: "));
 	Serial.println(request.http_version());
 
-	Serial.print("Request path: ");
+	Serial.print(F("Request path: "));
 	Serial.println(request.path());
 
 	const auto temperature_sensor_status = temperature_sensor.read_temperature();
@@ -124,7 +125,7 @@ void loop()
 
 	if (temperature_sensor_status != TemperatureSensorStatus::OK)
 	{
-		Serial.print("Error: ");
+		Serial.print(F("Error: "));
 		Serial.println(static_cast<int>(temperature_sensor_status));
 
 		wifi_module.send_response(
@@ -161,7 +162,7 @@ void loop()
 
 	if (!send_response_ok)
 	{
-		Serial.println("Failed to send response");
+		Serial.println(F("Failed to send response"));
 		wifi_module.close_connection(connection);
 		return;
 	}