i wanna add seriel to event,i got this msg,"error: ‘Serial’ undeclared (first use in this function)
Serial.print(“TRIGGERED”);
^~~~~~
"
static void ui_event_Button3(lv_event_t * e)
{
lv_event_code_t event = lv_event_get_code(e);
lv_obj_t * ta = lv_event_get_target(e);
if(event == LV_EVENT_CLICKED) {
Serial.print(“TRIGGERED”);
}
You have to use logging function from LVGL. Look at docs.
LV_LOG_USER("Some text to log");
or you can print value of some varaible like this:
LV_LOG_USER("Value of variable is: %d\n", value);
I hope this helps.
You will also probably need to enable loging in lv_conf.h
file.
Thank you for reply
sorry maybe i didn’t understand,i have tried to read the order but nothing popup in my serial monitor:
Note: i’m working on ESP32
#include <lvgl.h>
void setup() {
Serial.begin(115200);
}
void loop() {
// LV_LOG_USER(“Some text to log”);
LV_LOG_USER(“Value of variable is: %d\n”, value);
}
That is not enough . Start with Arduino example for LVGL and put what I did send earler to end of the setup()
function.
Btw, if you want to post some code, pls use preformatted text