Updated submodules, implemented timer functionality, fixed configuration issue

README.md

@@ -104,6 +104,17 @@ So, as the `Config` class uses python's magic function for getting and setting a
 - [lcdMenu](https://git.privacynerd.de/BlueFox/lcdMenu) - used for the menus
 
 
+## Learning curve
+
+Here are some of the websites I learnt a lot from while programming this project - mainly here for documentation reasons.
+
+- [A handy guide into configuration files in json](https://bhave.sh/micropython-json-config/)
+- [The official micropython wiki page about the same topic](https://docs.micropython.org/en/latest/library/json.html)
+- [StackOverflow thread about how to format a json file (used by this project to make it a bit more readable)](https://stackoverflow.com/questions/16311562/python-json-without-whitespaces)
+- [A guide about magic functions for settings and getting attributes](https://staskoltsov.medium.com/python-magic-methods-to-get-set-attributes-716a12d0b106)
+- [The official guide into git submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules)
+
+
 ## License
 
 This project is licensed under GPL-3.0-or-later. See [LICENSE](LICENSE).

main.py

@@ -32,10 +32,51 @@ def manual():
         if config.PIN_IN_BTN_1.value() == 1 or config.PIN_IN_BTN_2.value() == 1:
             return True  # exit on press of these buttons; True to disable the Quitting message from lcdMenu
 def timer():
-    # display WIP
+    timer_menu = lcdMenu(config.LCD, btn_mapping, scroll_direction=True, cycle=True, hide_menu_name=False, name="TIMERS")
-    config.LCD.clear()
+    timer_values = [config.TIMER_1_DURATION, config.TIMER_2_DURATION, config.TIMER_3_DURATION]
-    config.LCD.putstr("      Still     work-in-progress")
+    timer_splits = [lambda: divmod(round(timer_values[0]), 60), lambda: divmod(round(timer_values[1]), 60), lambda: divmod(round(timer_values[2]), 60)]
-    sleep(3)
+    
+    def run_timer(timer_number: int, _timer: int):
+        interrupt_pin = config.PIN_IN_BTN_1
+        reset_pin = config.PIN_IN_BTN_2
+        start_stop_pin = config.PIN_IN_SWITCH
+        original = _timer
+        config.LCD.clear()
+        config.LCD.putstr(f"Timer {timer_number}".center(16))
+        last_start_stop_value = start_stop_pin.value()
+        config.PIN_OUT_RELAIS.value(last_start_stop_value)
+        last_time_ns = time_ns()
+        while True:
+            config.LCD.move_to(0,1)
+            _timer_div = divmod(round(_timer), 60)
+            config.LCD.putstr(f"{_timer_div[0]:02d}:{_timer_div[1]:02d}".center(16))
+            if interrupt_pin.value() == 1:
+                timer_values[timer_number-1] = _timer  # save the current state
+                last_start_stop_value = 0  # turn the LEDs off!
+                config.PIN_OUT_RELAIS.value(last_start_stop_value)
+                return None
+            if reset_pin.value() == 1:
+                _timer = original  # reset the timers
+            if _timer <= 0:
+                config.PIN_OUT_RELAIS.off()
+                return True
+            sleep(0.05)
+            if last_start_stop_value != (new_value := start_stop_pin.value()):
+                last_start_stop_value = new_value
+                config.PIN_OUT_RELAIS.value(new_value)
+                last_time_ns = time_ns()
+            if start_stop_pin.value() == 1:
+                _timer -= (time_ns() - last_time_ns) / 1000**3
+                last_time_ns = time_ns()
+    
+    timer_programs = [(f"{timer_splits[0]()[0]:02d}:{timer_splits[0]()[1]:02d}", lambda: run_timer(1, timer_values[0])),
+                      (f"{timer_splits[1]()[0]:02d}:{timer_splits[1]()[1]:02d}", lambda: run_timer(2, timer_values[1])),
+                      (f"{timer_splits[2]()[0]:02d}:{timer_splits[2]()[1]:02d}", lambda: run_timer(3, timer_values[2])),
+                      ("Exit", timer_menu.stop)]
+    timer_menu.setup(timer_programs)  # give it the callback list
+    timer_menu.run()
+    del timer_menu, timer_programs
+    collect()
     return True  # disable the "Quitting" message from lcdMenu
 def uv_on():
     config.PIN_OUT_RELAIS.value(1)

utils.py

@@ -39,7 +39,10 @@ class Config:
                            "LCD_I2C_ADDR",              # the i2c adress of the display
                            "LCD_I2C_NUM_ROWS",          # how many rows for character display has the display?
                            "LCD_I2C_NUM_COLS",          # and how many characters can it display per row?
-                           "LCD"]                       # the actual lcd object (of the PCF8574T I2C_LCD class, see libraries)
+                           "LCD",                       # the actual lcd object (of the PCF8574T I2C_LCD class, see libraries)
+                           "TIMER_1_DURATION",          # the duration of the first timer in seconds
+                           "TIMER_2_DURATION",          # the duration of the second first timer in seconds
+                           "TIMER_3_DURATION"]          # the duration of the third timer in seconds
         self._config_file = config_file
         self.load_config()
     
@@ -130,4 +133,3 @@ def log(log_level: int, message: str):
         print(f"{message}")
     elif cfg.LOG_LEVEL >= log_level:  # if log level is valid
         print(f"[{log_mapping[log_level]}] {message}")
-