screen auto off in 30s

eink_api.c

@@ -21,6 +21,7 @@ void process_command(char *cmd);
 void core1_entry();
 
 bool screen_on = false;
+uint32_t screen_last_ts = 0;
 
 int epaper_init()
 {
@@ -47,7 +48,7 @@ int epaper_init()
 }
 
 bool editor_mode = false;
-int editor_last_ts = 0;
+uint32_t editor_last_ts = 0;
 char screen_log[2000];
 int screen_log_i = 0;
 sFONT *current_font = &Font16;
@@ -211,6 +212,8 @@ void core1_entry() {
             if(!screen_on){
                 epaper_init();
             }
+            absolute_time_t time = get_absolute_time();
+            screen_last_ts = to_ms_since_boot(time);
             if(editor_mode){
                 bool overflow = false;
                 Paint_Clear(WHITE);
@@ -243,6 +246,14 @@ void core1_entry() {
             }
             
         }
+        if(screen_on){
+            absolute_time_t time = get_absolute_time();
+            uint32_t ms = to_ms_since_boot(time);
+            if(screen_last_ts + 30000 < ms){
+                printf("Turning off screen due to inactivity (30s)");
+                epaper_close();
+            }
+        }
     }
 }