add FW 4.2.2

No changes, only updated arduino-pico for the latest LittleFS (file system) version.

Author: NuclearPhoenixx

software/README.md

@@ -4,7 +4,7 @@
 
 If you want to play around with the firmware, the Arduino sketch can be found inside `ogd_pico`. It also includes some instructions on how to program. See below for more info about that.
 
-**Note about HW compatability:** Each hardware revision of the detector has its own major version of the Arduino sketch indicated by the leading number of the version code. The versions are only tested on their respective hardware, so they might and probably will not work with newer or older detector boards. As an example, FW 4.0.2 is designed to only run on Rev. 4 boards, while 3.5.2 is only designed to run on Rev. 3 boards.
+**Note about HW compatability:** Each hardware revision of the detector has its own major version of the Arduino sketch indicated by the leading number of the version code. The versions are only tested on their respective hardware, so they might and probably will not work with newer or older detector boards. As an example, FW **4**.0.2 is designed to only run on Rev. **4** boards, while **3**.5.2 is only designed to run on Rev. **3** boards.
 
 ## Programming the Pi Pico
 

software/ogd_pico-4.2.1-overclocked.uf2

@@ -83,7 +83,7 @@ struct Config {
     =================
 */
 
-const String FW_VERSION = "4.2.1";  // Firmware Version Code
+const String FW_VERSION = "4.2.2";  // Firmware Version Code
 
 const uint8_t GND_PIN = A2;    // GND meas pin
 const uint8_t VSYS_MEAS = A3;  // VSYS/3