How to use Interface (RUI) API for rak811

I use RAK811 Breakout Board. I try load this example https://github.com/RAKWireless/Products_practice_based_on_RUI/tree/master/based%20on%20RAK811, but i can undestend how its work. i load bin files but nothing happens. MY code:

#include “rui.h”
#include “board.h”

static RUI_RETURN_STATUS rui_return_status;
RUI_LORA_STATUS_T app_lora_status; //record status

rui_lora_get_status(false,&app_lora_status);;//The query gets the current device status
static uint8_t sensor_data_cnt=0; //send data counter by LoRa

rui_lora_set_region(EU868);

rui_lora_set_work_mode(RUI_LORAWAN);

rui_lora_set_dev_eui(uint8_t *dev_eui);

rui_lora_set_app_eui(uint8_t *app_eui);

rui_lora_set_app_key(uint8_t *app_key);

rui_lora_set_join_mode(RUI_OTAA);

rui_lora_join();

rui_lora_set_dr(0x05);

rui_lora_send(2,“AABBCC”,3);

How use rui API ??? the code throws an error in RUI online compel(http://47.112.137.11:12090/#/projectList/ruiProject)

Hi @oleksander,

For RAK811 breakout board, you should use this source code:

You can compile it directly on RUI online compiler, or you can modify its source code according to your mind then compile on RUI online compiler.

https://doc.rakwireless.com/rak811-wisnode-lora-module/rui-online-compiler

When I compile and load code into rak811, the module does not work, nothing happens. I use usb-ttl to download the program. I try to use the program with AT command and it works, but rui do not work

rui code do not work, all code in https://github.com/RAKWireless/Products_practice_based_on_RUI/tree/master/based%20on%20RAK811/app_RAK811