Commands to set time & show free heap space

ampel-firmware/ampel-firmware.ino

@@ -80,6 +80,7 @@ void setup() {
 
   led_effects::setupRing();
 
+  util::initialize();
   sensor::initialize();
 
   Serial.print(F("Sensor ID: "));

ampel-firmware/co2_sensor.cpp

@@ -78,8 +78,6 @@ namespace sensor {
         " 600 (Starts calibration process, to given ppm)");
     sensor_console::defineIntCommand("calibrate!", calibrateSensorRightNow,
         " 600 (Calibrates right now, to given ppm)");
-    sensor_console::defineIntCommand("calibrate!", calibrateSensorRightNow,
-        " 600 (Calibrates right now, to given ppm)");
     sensor_console::defineIntCommand("auto_calibrate", setAutoCalibration, " 0/1 (Disables/enables autocalibration)");
 
     sensor_console::defineCommand("reset", []() {

ampel-firmware/sensor_console.cpp

@@ -19,6 +19,7 @@ namespace sensor_console {
   Command commands[MAX_COMMANDS];
 
   //NOTE: Probably possible to DRY (with templates?)
+  //TODO: Allow F-Strings
   void defineCommand(const char *name, void (*function)(void), const char *doc) {
     if (commands_count < MAX_COMMANDS) {
       commands[commands_count].name = name;

ampel-firmware/util.cpp

@@ -36,6 +36,32 @@ namespace ntp {
   void getLocalTime(char *timestamp) {
     timeClient.getFormattedDate(timestamp);
   }
+
+  void setLocalTime(int32_t unix_seconds) {
+    char time[23];
+    timeClient.getFormattedDate(time);
+    Serial.print("Current time : ");
+    Serial.println(time);
+    Serial.print("Setting UNIX time to : ");
+    Serial.println(unix_seconds);
+    timeClient.setEpochTime(unix_seconds - seconds());
+    timeClient.getFormattedDate(time);
+    Serial.print("Current time : ");
+    Serial.println(time);
+  }
+}
+
+namespace util {
+  void initialize() {
+    // Define SENSOR ID
+    // Add callbacks
+    sensor_console::defineIntCommand("set_time", ntp::setLocalTime, " 1618829570 (Sets time to the given UNIX time)");
+    sensor_console::defineCommand("free", []() {
+      Serial.print(F("Free heap space : "));
+      Serial.print(get_free_heap_size());
+      Serial.println(F(" bytes."));
+    }, " (Displays available heap space)");
+  }
 }
 
 uint32_t max_loop_duration = 0;

ampel-firmware/util.h

@@ -2,6 +2,7 @@
 #define AMPEL_UTIL_H_INCLUDED
 #include <Arduino.h>
 #include "config.h"
+#include "sensor_console.h"
 
 #include <WiFiUdp.h> // required for NTP
 #include "src/lib/NTPClient-master/NTPClient.h" // NTP
@@ -21,10 +22,12 @@
 namespace ntp {
   void initialize();
   void update();
-  void getLocalTime(char* timestamp);
+  void getLocalTime(char *timestamp);
 }
 
 namespace util {
+  void initialize();
+
   template<typename Tpa, typename Tpb>
   inline auto min(const Tpa &a, const Tpb &b) -> decltype(a < b ? a : b) {
     return b < a ? b : a;