Deleting bin2json and ota-upload and updating README

Author: aentinger

extras/tools/README.md

@@ -7,35 +7,33 @@ Arduino IDE: `Sketch` -> `Export compiled Binary`
 ```bash
 cp sketch.bin ~/Arduino/libraries/ArduinoIoTCloud/extras/tools/
 cd ~/Arduino/libraries/ArduinoIoTCloud/extras/tools
-./bin2ota.py sketch.bin sketch.ota
-./bin2json.py sketch.ota sketch.json
-./ota-upload.sh CLIENT_ID CLIENT_SECRET DEVICE_ID sketch.json
+./lzss.py --encode sketch.bin sketch.lzss
+./bin2ota.py [MKR_WIFI_1010 | NANO_33_IOT] sketch.lzss sketch.ota
 ```
 
 ## `bin2ota.py`
 This tool can be used to extend (actually prefix) a binary generated with e.g. the Arduino IDE with the required length and crc values required to perform an OTA (Over-The-Air) update of the firmware.
 
 ### How-To-Use
 ```bash
-./bin2ota.py sketch.bin sketch.ota
+./bin2ota.py [MKR_WIFI_1010 | NANO_33_IOT] sketch.bin sketch.ota
 ```
 #### `sketch.bin`
 ```bash
 0000000   8000 2000 749D 0000 7485 0000 7485 0000
-0000010   0000 0000 0000 0000 0000 0000 0000 0000
-0000020   0000 0000 0000 0000 0000 0000 7485 0000
 0000030   0000 0000 0000 0000 7485 0000 74F1 0000
 ...
 ```
 * `length(sketch.bin) = 0x0003'A5E0`
 * `CRC32(sketch.bin)  = 0xA9D1'265B`
+* `MAGIC NUMBER(MKR WIFI 1010)  = 0x2341'8054`
+* `VERSION = 0x0000'0000'0000'0000`
 
 #### `sketch.ota`
 ```bash
-0000000   A5E0 0003 265B A9D1 8000 2000 749D 0000
-0000010   7485 0000 7485 0000 0000 0000 0000 0000
-0000020   0000 0000 0000 0000 0000 0000 0000 0000
-0000030   0000 0000 7485 0000 0000 0000 0000 0000
+0000000   A5E0 0003 265B A9D1 2341 8054 0000 0000
+0000010   0000 0000 8000 2000 749D 0000 7485 0000
+...
 ```
 
 ## `lzss.py`
@@ -49,20 +47,4 @@ This tool allows to compress a binary file using the LZSS algorithm.
 * Decoding (Extracting)
 ```bash
 ./lzss.py --decode sketch.lzss sketch.bin
-```
-
-## `bin2json.py`
-This tool converts the binary file into base64 encoded JSON which is necessary for feeding it to the server.
-
-### How-To-Use
-```bash
-./bin2json.py sketch.ota sketch.json
-```
-
-## `ota-upload.sh`
-This tool allows to upload a OTA binary to a device via a Arduino cloud server.
-
-### How-To-Use
-```bash
-./ota-upload.sh CLIENT_ID CLIENT_SECRET DEVICE_ID sketch.json
 ```