wip print version

include/lcd.h

 void lcd_draw(const char *mode, const char *val, const char *bat);
 void lcd_draw_bye(void);
 void lcd_draw_bitmap(uint8_t *data, int width, int height, int x_off, int y_off);
+void lcd_draw_version(void);
 
 void lcd_debug_buttons(void);
 

src/lcd.c

     ssd1306_draw_string(&disp, 8, LCD_HEIGHT / 2 + 5, 3, "loader");
     ssd1306_show(&disp);
 }
+
+void lcd_draw_version(void) {
+    ssd1306_clear(&disp);
+    // TODO
+    ssd1306_draw_string(&disp, 0, LCD_HEIGHT / 2 - 4, 1, "TODO");
+    ssd1306_show(&disp);
+}

src/main.c

         lcd_debug_buttons();
     } else if (debug_buttons[BTN_REC] && (!debug_buttons[BTN_CLICK])) {
         // skip splash screen
+    } else if ((!debug_buttons[BTN_REC]) && debug_buttons[BTN_CLICK]) {
+        // show version info
+        lcd_draw_version();
+
+        // wait until button is released
+        uint32_t last = to_ms_since_boot(get_absolute_time());
+        bool state = false;
+        while (debug_buttons[BTN_CLICK]) {
+            buttons_run();
+            handle_serial_input();
+            uint32_t now = to_ms_since_boot(get_absolute_time());
+            if ((now - last) >= 250) {
+                state = !state;
+                led_set(0, state);
+            }
+        }
+        led_set(0, false);
     } else {
         // show splash for a bit and animate LEDs
         for (uint i = 0; i < LED_COUNT; i++) {