Release v0.2.2

CHANGELOG.md

 # Change Log
 
+## [v0.2.2](https://transfer.hft-stuttgart.de/gitlab/co2ampel/ampel-firmware/-/releases/v0.2.2) 2021/10/01
+
+* MAC address is now shown at startup and via HTTP
+
 ## [v0.2.1](https://transfer.hft-stuttgart.de/gitlab/co2ampel/ampel-firmware/-/releases/v0.2.1) 2021/06/06
 
 * BUGFIX: Sensor would keep on calibrating after successful calibration.

ampel-firmware/util.h

@@ -38,7 +38,7 @@ class Ampel {
 private:
   static void showFreeSpace();
 public:
-  const char *version = "v0.2.3-DEV"; // Update manually after significant changes.
+  const char *version = "v0.2.2"; // Update manually after significant changes.
   const char *board;
   const char *sensorId;
   const char *macAddress;