245 bytes can be sent using BLE, but 512 bytes must be extended into a single packet.

[Sonu_1231]

I had created a custom Nordic UART service. Ble 

sending :

static tBleStatus Generic_STM_App_Update_Char_Ext(uint16_t ConnectionHandle, uint16_t ServiceHandle, uint16_t CharHandle, uint16_t CharValueLen, uint8_t *pPayload)

{

tBleStatus ret = BLE_STATUS_INVALID_PARAMS;

ret = aci_gatt_update_char_value_ext(ConnectionHandle,

[Sonu_1231]