4.2.1

Fixed:

• Fix wrong AT command in RAK3172_LoRaWAN_MC_RemoveGroup
• Fix wrong LoRaWAN multicast group extraction
• Fix missing Group member in RAK3172_LoRaWAN_Receive
• Fix wrong length for long payload in RAK3172_LoRaWAN_Transmit
• Fix missing transmission confirmation in unconfirmed mode in RAK3172_LoRaWAN_Transmit
• Fix different smaller errors
• Fix segfault caused by a timeout in UART driver for ESP32 when using module firmware version 1.0.4 and below

Added:

• Add RAK3172_ERR_WRONG_PORT error for LoRaWAN
• Add RAK3172_ERR_CLASS_B_DISABLED error for class B devices
• Add device class to driver object
• Add isMulticast field to RAK3172_Rx_t object
• Add AT_NO_NETWORK_JOINED error to RAK3172_LoRaWAN_Transmit
• Add RAK3172_LoRaWAN_SetClass and RAK3172_LoRaWAN_GetClass function
• Add arch specific watchdog
• Add RAK3172_isBusy function
• Add support for the AT+CFS command via the RAK3172_LoRaWAN_GetConfirmationStatus function
• Add support for the AT+LPM command via the RAK3172_EnableAutoLowPower function
• Add support for the AT+LPMLVL command
• Add support for the AT+MCROOTKEY command
• Add support for the AT+IQINVER command
• Add RAK3172_ERR_COMMAND_NOT_FOUND error

Added (EXPERIMENTAL):

• Add FUOTA support for the host CPU via LoRaWAN
• Add clock synchronization v1.0.0 support for the host CPU via LoRaWAN

Changed:

• Improve error check in class B and multicast driver and add a check for the current device mode
• Set Retries in RAK3172_LoRaWAN_Transmit as optional parameter
• Swap Retries and Confirmed in RAK3172_LoRaWAN_Transmit
• Clean up CMakeLists.txt
• Update examples
• Update documentation

Removed:

• Remove overloaded RAK3172_LoRaWAN_Transmit
• Remove RUI3 option in RAK3172_FactoryReset