Update the README.md

Added available bandwidth settings

README.md

@@ -22,10 +22,10 @@ _**This requires some code changes in your existing applications. Please read [W
 | [Changelog](#changelog) |     [GPIO definitions](#gpio-definitions) |     [Initialize](#initialize) |
 | [Features](#features) |     [Example HW configuration](#example-hw-configuration) |     [Callbacks](#callbacks) |
 | [Functions](#functions) |     [Initialize the LoRa HW](#initialize-the-lora-hw) |     [Join](#join) |
-|   [Module specific setup](#module-specific-setup) |     [Initialization for specific modules](#simplified-lora-hw-initialization-for-specific-modules) |     [LoRaWan single channel gateway](#lolawan-single-channel-gateway) |
+|   [Module specific setup](#module-specific-setup) |     [Initialization for specific modules](#simplified-lora-hw-initialization-for-specific-modules) |     [LoRaWan single channel gateway](#lorawan-single-channel-gateway) |
 |   [Chip selection](#chip-selection) |     [Setup the callbacks for LoRa events](#setup-the-callbacks-for-lora-events) |     [Limit frequency hopping to a sub band](#limit-frequency-hopping-to-a-sub-band) |
 |   [LoRa parameters](#lora-parameters) |     [Initialize the radio](#initialize-the-radio) | |
-|   [SPI definition](#mcu-to-sx126x-spi-definition) |     [Initialize the radio](#initialize-the-radio) | [Examples](./examples/README.md) | 
+|   [SPI definition](#mcu-to-sx126x-spi-definition) |     [Initialize the radio after CPU woke up from deep sleep](#initialize-the-radio-after-cpu-woke-up-from-deep-sleep) | [Examples](./examples/README.md) | 
 |   [TXCO and antenna control](#explanation-for-txco-and-antenna-control) |     [Start listening for packets](#start-listening-for-packets) | [Installation](#installation) |
 
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@@ -295,11 +295,20 @@ int RADIO_RXEN = 27; // LORA ANTENNA RX ENABLE
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 #### LoRa definitions
 Check the SX126x datasheet for explanations 
+The bandwidth can be set to any bandwidth supported by the SX126x: 
+| Index | Bandwidth | Index | Bandwidth |
+| --- | --- | --- | --- |
+| 0 | 125 kHz | 5 | 31.25 kHz |
+| 1 | 250 kHz | 6 | 20.83 kHz |
+| 2 | 500 kHz | 7 | 15.63 kHz |
+| 3 | 62.5 kHz | 8 | 10.42 kHz |
+| 4 | 41.67 kHz | 9 | 7.81 kHz |
+
 ```cpp
 // Define LoRa parameters
 #define RF_FREQUENCY 868000000 // Hz
 #define TX_OUTPUT_POWER 22 // dBm
-#define LORA_BANDWIDTH 0 // [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3: Reserved]
+#define LORA_BANDWIDTH 0 // [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3 ... 9 see table]
 #define LORA_SPREADING_FACTOR 7 // [SF7..SF12]
 #define LORA_CODINGRATE 1 // [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8]
 #define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
@@ -366,11 +375,17 @@ The RAK4630/4631 module has the nRF52840 and SX1262 chips integrated in a module
 ```
 ----
 #### Simplified LoRa HW initialization for RAK11300/11310 module
-The RAK11300/11310 module has the Rp2040 and SX1262 chips integrated in a module. Therefore the hardware configuration is fixed. 
+The RAK11300/11310 module has the RP2040 and SX1262 chips integrated in a module. Therefore the hardware configuration is fixed. 
 ```cpp
  lora_rak11300_init();
 ```
 ----
+#### Simplified LoRa HW initialization for RAK13300 module
+The RAK13300 module is an IO module that has a LoRa SX1262 LoRa transceiver. It is made for the RAK11200 ESP32 module and the hardware configuration is fixed. 
+```cpp
+ lora_rak13300_init();
+```
+----
 #### Initialize the LoRa HW after CPU woke up from deep sleep
 When you want to use the deep sleep function of the ESP32 with external wake up source, you do not want to reset and reconfigure the SX126x chip after its IRQ woke up the ESP32. This re-init function sets up only the required definitions for the communication without resetting the SX126x
 ```cpp
@@ -470,20 +485,9 @@ In addition you must define several LoRaWan parameters.
 You can find a lot of information about LoRaWan on the [LoRa Alliance](https://lora-alliance.org/) website.
 
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-#### ArduinoIDE LoRaWan region definitions 
-_**Region definition has changed since library version 2.0.0**_ 
-~~If you are using ArduinoIDE you need to edit the file ```/src/mac/Commissioning.h``` and define the region there.~~ 
- 
-~~In Arduino IDE you can find the file in _**`<arduinosketchfolder>/libraries/SX126x-Arduino/src/mac`**_ 
-In PlatformIO this is usually _**`<user>/.platformio/lib/SX126x-Arduino/src/mac`**_~~ 
-
-----
-#### PlatformIO LoRaWan region definitions 
-_**Region definition has changed since library version 2.0.0**_ 
-~~If you are using PlatformIO you must define the region in the platformio.ini file of your project.~~ 
 
-#### LoRaWAN region definitions
-Since V2.0.0 the LoRaWAN region is selected during the initialization. It is no longer required to change any header files.
+#### LoRaWan region definitions 
+The LoRaWAN region is set during the lmh_init() call. 
 See [lmh_init()](#initialize) for details.
 
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