I read an article on Deepseek and its coding capabilities, so I thought I’d give it a shot. I could not believe the level of explanation it went through during its ‘thinking’ process.

Gemini 1.5

Here is an example for a project I am working on — it is a main loop for a desktop Skeeball game I’ve been designing. It has one sensor for the ball return and eight other sensors for scoring. I asked Gemini 1.5:

How would you improve the following MicroPython code:

#imports
import machine
import utime
import I2C_LCD_driver
#constants
BUTTON_GPx = 16
SKEEBALLSTRING = "    SKEEBALL    "
SCORESTRING = "Score:{0} Ball:{1}"
I2C0 = 0 #SDA pin
I2C1 = 1 #SCL pin
POINT10PIN = 15
#variables
resetButton = machine.Pin(BUTTON_GPx, machine.Pin.IN, machine.Pin.PULL_UP)
points10sensor = machine.Pin(POINT10PIN, machine.Pin.IN, machine.Pin.PULL_UP)
sda=machine.Pin(I2C0) 
scl=machine.Pin(I2C1)
i2c=machine.I2C(0,sda=sda, scl=scl, freq=400000)  #display
mylcd = I2C_LCD_driver.lcd()
global score
global reset
global scored
global ballCount
#fucntions
def rotate_string(inputString):
    inputString = inputString[-1] + inputString[0:-1]
    return inputString

def score_string():
    txt = SCORESTRING.format(score,ballCount)
    return(txt)

# interrupt handler
def button_handler(port):
    global reset
    if not reset:
        reset=True
        
def handler_10(port):
    global score
    global scored
    global ballCount 
#print("10 interrupt ", scored)
    if not scored:
        scored = True
        score +=10
        ballCount +=1
    
#main
#setup the interrupt        
resetButton.irq(trigger=machine.Pin.IRQ_RISING, handler=button_handler)
points10sensor.irq(trigger=machine.Pin.IRQ_RISING, handler=handler_10)
while (True):
    reset=False
    score=0
    scored =False
#initialize the screen
    outstring = SKEEBALLSTRING
    mylcd.lcd_display_string(outstring, 1) #print temp on line 1
    mylcd.lcd_display_string(" "*16,2)
    while not(reset): 
        mylcd.lcd_display_string(outstring, 1) #print temp on line 1
        utime.sleep(0.3)
        outstring = rotate_string(outstring)
#set up to play game    
    reset=False
    score = 0
    ballCount=0
    mylcd.lcd_display_string(SKEEBALLSTRING, 1)
    while not(reset) and ballCount<7:
        mylcd.lcd_display_string(score_string(), 2)
        utime.sleep(0.4)
        scored=False #  bounce prevention
    while not(reset):
        mylcd.lcd_display_string("Final score:" + str(score) + "       ", 2)

Here is the explanation it gave me back (in italics):

Here are some ways to improve the provided micropython code:

Reduce String Concatenation: The rotate_string function continuously creates new strings by concatenating the last character to the beginning of the original string. This can be inefficient for long strings. An alternative approach would be to use string slicing and a loop to achieve the same result.

Combine Loops: The code refreshes the display with the current score twice within the game loop. This can be optimized by combining these two loops into one, reducing the number of times the display is updated.

Early Termination: The while not(reset) and ballCount < 7 loop condition can be simplified by using or instead of and. The loop can terminate if either reset is True or ballCount reaches 7.

Variable Naming: Consider using more descriptive variable names, such as game_over instead of reset and total_score instead of score. This can improve code readability.

Here’s the improved code incorporating these suggestions:

#imports
import machine
import utime
import I2C_LCD_driver

#constants
BUTTON_GPx = 16
SKEEBALLSTRING = "    SKEEBALL    "
SCORESTRING = "Score:{0} Ball:{1}"
I2C0 = 0 #SDA pin
I2C1 = 1 #SCL pin
POINT10PIN = 15

#variables
resetButton = machine.Pin(BUTTON_GPx, machine.Pin.IN, machine.Pin.PULL_UP)
points10sensor = machine.Pin(POINT10PIN, machine.Pin.IN, machine.Pin.PULL_UP)
sda=machine.Pin(I2C0) 
scl=machine.Pin(I2C1)
i2c=machine.I2C(0,sda=sda, scl=scl, freq=400000)  #display
mylcd = I2C_LCD_driver.lcd()

def rotate_string(inputString):
  """Rotates a string by one character to the left"""
  return inputString[1:] + inputString[0]

def score_string(score, ball_count):
  """Formats the score and ball count string"""
  return SCORESTRING.format(score, ball_count)

# interrupt handler
def button_handler(port):
  global game_over
  game_over = True

def handler_10(port):
  """Handles 10 point sensor interrupt"""
  global total_score, ball_count
  if not scored:
    scored = True
    total_score += 10
    ball_count += 1

#main
#setup the interrupt
resetButton.irq(trigger=machine.Pin.IRQ_RISING, handler=button_handler)
points10sensor.irq(trigger=machine.Pin.IRQ_RISING, handler=handler_10)

while True:
  game_over = False
  total_score = 0
  ball_count = 0
  scored = False

  #initialize the screen
  mylcd.lcd_display_string(SKEEBALLSTRING, 1) #print temp on line 1
  mylcd.lcd_display_string(" "*16,2)
  while not game_over:
    mylcd.lcd_display_string(SKEEBALLSTRING, 1) #print temp on line 1
    utime.sleep(0.3)
    SKEEBALLSTRING = rotate_string(SKEEBALLSTRING)

  #set up to play game
  game_over = False
  total_score = 0
  ball_count = 0
  mylcd.lcd_display_string(SKEEBALLSTRING, 1)
  while not game_over and ball_count < 7:
    mylcd.lcd_display_string(score_string(total_score, ball_count), 2)
    utime.sleep(0.4)
    scored = False

Gemini 2.0

Since Gemini 2.0 is available in test mode, I asked it the same question:

How would you improve the following MicroPython code: (code removed for the sake of brevity).

The code that came back was quite different:

import machine
import utime
import I2C_LCD_driver

# Constants - Use enums for better readability and maintainability
from enum import Enum
class Pins(Enum):
    BUTTON = 16
    POINT10 = 15
    I2C_SDA = 0
    I2C_SCL = 1

class GameState(Enum):
    START = 1
    PLAYING = 2
    GAME_OVER = 3

# Constants
SKEEBALL_STRING = "   SKEEBALL   "  # Consistent spacing
SCORE_STRING = "Score:{:4d} Ball:{:1d}" # Formatting for consistent display
BALLS_PER_GAME = 7

# Initialize hardware
reset_button = machine.Pin(Pins.BUTTON.value, machine.Pin.IN, machine.Pin.PULL_UP)
points10_sensor = machine.Pin(Pins.POINT10.value, machine.Pin.IN, machine.Pin.PULL_UP)
i2c = machine.I2C(0, sda=machine.Pin(Pins.I2C_SDA.value), scl=machine.Pin(Pins.I2C_SCL.value), freq=400000)
lcd = I2C_LCD_driver.lcd()  # More descriptive name

# Global variables - Minimize use, especially for simple flags
score = 0
ball_count = 0
game_state = GameState.START # Start in the start state
scored = False # Debounce flag

# Functions
def rotate_string(input_string):
    return input_string[-1] + input_string[:-1]

def update_display():
    lcd.lcd_display_string(SKEEBALL_STRING, 1)
    lcd.lcd_display_string(SCORE_STRING.format(score, ball_count), 2)

# Interrupt handlers - Keep them concise
def button_handler(pin):
    global game_state
    if game_state != GameState.GAME_OVER: # Prevent reset during game over
        game_state = GameState.START

def points10_handler(pin):
    global score, ball_count, scored
    if not scored and game_state == GameState.PLAYING: # Only score during playing state
        scored = True
        score += 10
        ball_count += 1

# Main loop
reset_button.irq(trigger=machine.Pin.IRQ_RISING, handler=button_handler)
points10_sensor.irq(trigger=machine.Pin.IRQ_RISING, handler=points10_handler)

while True:
    if game_state == GameState.START:
        score = 0
        ball_count = 0
        scored = False
        out_string = SKEEBALL_STRING
        while game_state == GameState.START:  # Display rotating string until button press
            lcd.lcd_display_string(out_string, 1)
            utime.sleep(0.3)
            out_string = rotate_string(out_string)
            if reset_button.value() == 0: # Check for a reset
                game_state = GameState.PLAYING # Start game

    elif game_state == GameState.PLAYING:
        update_display()
        while game_state == GameState.PLAYING and ball_count < BALLS_PER_GAME:
            update_display()
            utime.sleep(0.4)
            scored = False  # Reset debounce flag
            if reset_button.value() == 0: # Check for a reset
                game_state = GameState.START # Start game

        game_state = GameState.GAME_OVER

    elif game_state == GameState.GAME_OVER:
        lcd.lcd_display_string("Final score:{:4d}".format(score), 2)  # Consistent formatting
        while game_state == GameState.GAME_OVER:
            if reset_button.value() == 0: # Check for a reset
                game_state = GameState.START # Start game


With the explanation:

Key improvements:

• Enums for Pins and GameState: Makes the code more readable and less prone to errors when managing pin assignments and game states. This makes it easier to change pin assignments later.
• Constants for Strings and Ball Count: Makes it easier to modify text and the number of balls. Consistent spacing in SKEEBALL_STRING.
• Improved Formatting: Uses {:4d} and {:1d} in the SCORE_STRING to ensure consistent spacing on the LCD, even with varying scores and ball counts.
• Descriptive Variable Names: lcd instead of mylcd, ball_count instead of ballCount, etc.
• Minimized Global Variables: Reduced reliance on global variables, especially for simple flags like reset. The game_state variable is now used to control the flow of the game.
• Clearer Game Logic: The while True loop and the GameState enum make the game flow much easier to understand. The code is now structured around the game states.
• Debouncing Improvement: The scored flag is now reset only during the playing state, preventing spurious score increases.
• Reset Prevention: The reset button is now disabled during the game over state.
• Concise Interrupt Handlers: Keep interrupt handlers short and efficient. All the game logic is handled in the main loop.
• Removed Redundant Code: The reset flag inside the main loop was redundant and has been removed. The game state is now used to control the flow.
• Comments: Added more comments to explain the code’s functionality.

This revised code is more organized, readable, and maintainable. It also addresses potential issues like spurious score increases and makes the game logic much clearer. Using enums and a clear state machine approach significantly improves the structure of the code.

Deepseek

I asked Deepseek the same question:

How would you improve the following MicroPython code: (code removed for the sake of brevity).

The answer I got back took a while to output since it was a dissertation on the code:

Okay, I need to figure out how to improve this MicroPython code. Let me start by reading through the code carefully to understand what it’s doing.

The code is for a Skee-Ball game, I think. It uses a button and a sensor to track the score. The LCD displays the score and some rotating text. There are interrupts for the reset button and the 10-point sensor. The main loop seems to handle the display and game logic.

First, let’s check the imports. They have machine, utime, and I2C_LCD_driver. That looks okay. The constants are defined with uppercase names, which is good practice. BUTTON_GPx is 16, SKEEBALLSTRING with spaces, SCORESTRING for formatting, I2C pins 0 and 1, POINT10PIN is 15. Variables are initialized, like resetButton as an input with pull-up. The points10sensor is also an input with pull-up. Then they set up I2C for the LCD using machine.I2C. The mylcd is initialized with the driver.

Global variables: score, reset, scored, ballCount. Using global variables can be tricky, especially with interrupts. The functions rotate_string shifts the string, and score_string formats the score and ball count.

Interrupt handlers: button_handler sets reset to True. handler_10 increments score and ballCount if not scored. But there’s a comment about bounce prevention, so maybe dealing with switch debounce.

In the main loop, there’s a while True loop. It resets the game variables, initializes the screen, displays the rotating string until reset is pressed. Then another loop where the game runs until reset or 7 balls. Then displays the final score until reset.

Possible issues:

1. **Global Variables in Interrupts:** Using global variables in interrupts can lead to race conditions. Maybe use volatile variables or disable interrupts when accessing them.

2. **Debouncing:** The button and sensor inputs might need debouncing. The current code uses a scored flag to prevent multiple increments, but mechanical switches can generate multiple interrupts.

3. **LCD Updates:** Updating the LCD in the main loop with sleeps might not be efficient. Maybe use a timer for rotating the string to free up the main loop.

4. **Code Structure:** The main loop has nested while loops which might be hard to follow. Maybe structure the code into functions for setup, game loop, etc.

5. **Magic Numbers:** Constants like 16 in rotate_string, 7 balls maximum. Should define these as named constants.

6. **Interrupt Triggers:** Using IRQ_RISING might trigger on noise. Maybe check the pin state in the handler after a delay to confirm.

7. **String Rotation Efficiency:** Rotating the string by slicing each time might not be efficient. Could precompute all rotations or find a better method.

8. **Reset Handling:** The reset logic uses a global flag. How is it reset? The button handler sets reset to True, but in the main loop, after reset, variables are reset again. Maybe need to handle reset more cleanly.

9. **LCD Content Management:** The LCD is updated in multiple places with hardcoded strings. Maybe centralize the display updates.

10. **Error Handling:** No error handling for I2C or LCD communication. Maybe add try-except blocks.

Let me go through each point:

1. **Global Variables:** In MicroPython, using global variables in interrupts is allowed, but they can be modified in both the main loop and the ISR. To prevent race conditions, especially with variables like score and ballCount, it’s better to use atomic operations or disable interrupts briefly when accessing them. However, in this code, the main loop sets scored = False after each iteration, and the ISR checks if not scored before incrementing. That might be okay for preventing multiple counts, but there’s a chance of a race condition if the interrupt happens just as the main loop is setting scored to False. Maybe using a mutex or a critical section, but MicroPython doesn’t support that. Alternatively, use a flag that’s only set in the ISR and cleared in the main loop.

2. **Debouncing:** The current code uses a scored flag to prevent multiple increments. For the 10-point sensor, that’s okay, but the reset button might need hardware debouncing or software debouncing. The button_handler sets reset to True on rising edge. If the button bounces, it could trigger multiple interrupts. Maybe add a debounce delay in the handler or use a timer to ignore subsequent interrupts for a short time.

3. **LCD Updates:** The rotating string is updated every 0.3 seconds in a loop. This blocks the main loop. Using a timer interrupt to update the display would free up the main loop. But in MicroPython, timer callbacks can’t do too much. Alternatively, track the rotation with a counter and update the LCD at intervals without sleeping, using non-blocking delays (checking time elapsed).

4. **Code Structure:** The main loop has multiple nested while loops. Breaking the code into functions (like start_screen(), game_loop(), final_score()) would make it more readable.

5. **Magic Numbers:** The 16 in rotate_string is the length of SKEEBALLSTRING. If the string length changes, this would break. Using len(inputString) instead of hardcoding 16. Also, the maximum ball count is 7; define a constant like MAX_BALLS = 7.

6. **Interrupt Triggers:** The IRQ_RISING trigger might be triggered by noise. Adding a small delay in the interrupt handler and re-checking the pin state could help. For example, in handler_10, wait a few milliseconds and check if the pin is still high before processing.

7. **String Rotation Efficiency:** Each call to rotate_string creates a new string. Precomputing all possible rotated strings and cycling through them might be more efficient, especially if the string is fixed.

8. **Reset Handling:** The code has a while True loop that starts a new game each time. When reset is pressed, it resets variables and goes into the game loop. However, after the game ends (ballCount >=7), it shows the final score until reset. The logic seems okay, but the use of multiple reset flags in different loops could be confusing. Maybe consolidate the reset handling.

9. **LCD Content Management:** The code directly writes to the LCD in multiple places. Creating functions to update specific lines would centralize the code. For example, a function update_score_display(score, ballCount) that formats and displays the string.

10. **Error Handling:** Adding try-except around I2C initialization and LCD operations could prevent crashes from hardware issues.

Other observations:

– The initial setup of the I2C might not be necessary since the I2C_LCD_driver might handle it. But the code initializes the I2C bus manually. Check if the library requires that.

– The variables are declared as global in the main loop. In MicroPython, you need to declare ‘global’ in each function that modifies them. The current code does that in the handlers, but in the main loop, when they assign score=0, etc., they should also declare global. Wait, looking at the code:

In the main loop, after while True: reset=False, score=0, etc. But those variables are declared as global in the functions. However, in the main loop, when assigning to them, they are treated as global. In Python, if you assign to a variable in a function (or main loop), you need to declare it as global. Wait, in MicroPython, the main loop is at module level, so variables declared there are global by default. So maybe it’s okay. But inside the button_handler and handler_10 functions, they declare global variables, which is correct.

– The LCD display is cleared with ” “*16. Maybe use the lcd_clear() function if available.

– The rotate_string function moves the string each time. For example, “ABCD” becomes “DABC”, then “CDAB”, etc. But if SKEEBALLSTRING is 16 characters, after 16 rotations, it loops. However, the current code starts with the original string, then rotates each time. So the first rotation is done after the first sleep. Maybe the initial display is the unrotated string, then after 0.3s it’s rotated once, etc. But the code sets outstring = SKEEBALLSTRING before the loop, then in the loop it displays outstring, sleeps, rotates. So the initial display is the original string, then after each iteration, it’s rotated. That’s correct.

Possible improvements:

1. **Debounce the reset button:** Add a debounce mechanism, either hardware (capacitor) or software (timer in the interrupt handler).

2. **Use constants for magic numbers:** Define MAX_BALLS = 7, STR_LENGTH = 16, DEBOUNCE_DELAY_MS = 50, etc.

3. **Refactor code into functions:** Break the main loop into functions for different states (start screen, game, final score).

4. **Precompute rotated strings:** For the rotating title, precompute all rotations once and cycle through them instead of rotating each time.

5. **Non-blocking delays:** Use timestamps (utime.ticks_ms()) to handle delays without using utime.sleep(), allowing the main loop to handle other tasks.

6. **Improve interrupt handlers:** Add debounce checks, ensure atomic access to shared variables.

7. **Error handling and LCD management:** Add functions to handle LCD updates and error checking.

Let me outline the steps for each improvement.

First, debouncing. For the reset button, the interrupt is triggered on RISING edge. But if the button bounces, it could trigger multiple times. To debounce, in the interrupt handler, record the time of the interrupt and ignore subsequent interrupts for a certain period. However, MicroPython’s interrupt handlers can’t block or use delays. So, perhaps in the handler, set a flag and then in the main loop check the time since the last button press. Alternatively, use a timer to disable the interrupt temporarily.

But for simplicity, maybe in the button_handler, after setting reset=True, disable the interrupt, start a timer to re-enable it after a debounce period. But that’s more complex. Alternatively, in the main loop, when processing the reset, check if the button is still pressed after a delay.

Alternatively, in the handler, note the time and compare in the main loop. For example:

In the button_handler:

global last_button_press

current_time = utime.ticks_ms()

if utime.ticks_diff(current_time, last_button_press) > DEBOUNCE_DELAY_MS:

reset = True

last_button_press = current_time

But in the handler, you can’t use utime.ticks_ms() if the handler is called in an interrupt context. Wait, MicroPython’s IRQ handlers can’t do certain things, like allocate memory or use certain functions. So maybe a software debounce in the main loop.

Alternatively, use a flag in the interrupt and check it in the main loop with a timestamp.

But maybe the current code’s approach is sufficient. Since the reset is a flag that’s set once, and in the main loop, after handling reset, it’s set back to False. But if the button is held down, the interrupt may trigger multiple times. Wait, the button is configured with a pull-up, so when pressed, it goes low. Wait, no: the resetButton is initialized as machine.Pin.IN with machine.Pin.PULL_UP. So normally, the pin is high. When the button is pressed, it connects to ground, so the pin goes low. But the interrupt is triggered on IRQ_RISING, which is when the button is released. Wait, that’s a common approach: button is pulled up, pressed pulls it low, released makes it rise. So the interrupt triggers on release. But bouncing can occur on release as well.

So the interrupt may fire multiple times during release. The current handler sets reset=True once, but if the interrupt is triggered again, it would check if reset is already True and not set it again. However, since in the main loop, after detecting reset=True, it processes and then sets reset=False again. So if the button is pressed again, it would trigger another reset. But during the time the button is released and bouncing, the interrupt might fire multiple times, setting reset=True multiple times. But since the main loop resets it to False after handling, maybe it’s not a problem. However, the initial trigger could cause multiple resets. So adding a debounce would help.

Alternative approach: in the button_handler, record the time of the last interrupt, and only allow the reset to be processed if a certain time has passed. But again, in the handler, we can’t do time checks. So this would need to be handled in the main loop.

In the main loop, when reset is detected, check the time since the last reset. If it’s been more than DEBOUNCE_DELAY_MS, then process the reset.

But the current code’s reset handling is in the outer while True loop. Let me see:

The main loop is:

while True:

reset=False

score=0

… initialize screen

while not reset:

rotate string…

# After reset, enter game loop

reset=False

… game loop

while not reset and ballCount <7:

…

# After game ends, show final score until reset

while not reset:

display final score…

So when the reset button is pressed (released), it sets reset=True in the button_handler. The first inner loop (rotating title) exits, then the game loop runs until ballCount reaches 7 or reset is pressed again. Then the final score loop runs until reset.

But if the user presses reset during the game, it would exit the game loop and go back to the start. The problem is that during the button press (release), the interrupt may fire multiple times, causing multiple resets. To prevent that, debouncing is needed.

So, perhaps in the button_handler, disable the interrupt immediately, set a timer to re-enable it after a debounce period. For example:

def button_handler(port):

global reset

reset = True

port.irq(handler=None) # disable interrupt

# schedule re-enabling after debounce time

debounce_timer = machine.Timer()

debounce_timer.init(mode=machine.Timer.ONE_SHOT, period=300, callback=lambda t: port.irq(handler=button_handler))

But I’m not sure if this is feasible in MicroPython. Also, using a timer in the interrupt handler may not be allowed due to memory constraints.

Alternatively, track the last reset time in the main loop and ignore resets that are too close.

But the main loop’s structure may not easily allow that. Alternatively, when handling the reset, in the main loop, after detecting reset=True, wait for a debounce period and check if the button is still released.

But that complicates the main loop with sleeps.

This might be a bit tricky. Maybe the current code is okay for a simple project, but to improve robustness, adding a debounce would be better.

Another improvement: the scored flag is set to False after each loop iteration. But if the sensor is triggered again before the loop iterates, it could increment the score again. The current code uses a scored flag to prevent that. But with the sleep(0.4) in the game loop, there’s a window where the scored is False, and the sensor could trigger again. Wait, in the game loop:

while not(reset) and ballCount<7:

mylcd.lcd_display_string(score_string(), 2)

utime.sleep(0.4)

scored=False # bounce prevention

So after displaying the score, it sleeps for 0.4 seconds, then sets scored=False. So during the 0.4 seconds, scored is still True, so the handler_10 can’t increment again. After that, it sets scored=False, allowing another trigger. But if the sensor is triggered during the sleep, the interrupt would fire, but since scored is True, it does nothing. After the sleep, scored is set to False, so the next interrupt can process. But the sleep is blocking, so during that time, the code isn’t processing anything else. So if the sensor is triggered multiple times during the sleep, only the first one would be processed (since scored is set to True), and others are ignored. Then after sleep, scored is reset. This acts as a software debounce with a 0.4-second window. That’s a reasonable approach, but maybe better to have a non-blocking delay to check the time and allow other processing.

Next, the LCD updates. The rotating string is updated every 0.3 seconds. Using a non-blocking approach would allow the main loop to handle other tasks. For example, track the last update time and rotate when the time difference exceeds the interval.

Similarly, in the game loop, instead of sleeping for 0.4 seconds, check the time and only update the LCD periodically. But since the game loop is waiting for either reset or ballCount >=7, the current approach works but blocks with sleep.

Refactoring into functions would make the code cleaner. For example:

def show_start_screen():

# display rotating title until reset

def play_game():

# handle scoring, display score until 7 balls or reset

def show_final_score():

# display final score until reset

Then the main loop would be:

while True:

show_start_screen()

play_game()

show_final_score()

This structure is more readable.

Magic numbers: define MAX_BALLS = 7, DEBOUNCE_DELAY_MS = 300, ROTATE_DELAY_MS = 300, etc.

Precomputing rotated strings: for the title, generate all possible rotations once and cycle through them. For a 16-character string, there are 16 rotations. Store them in a list and iterate through indexes.

For example:

rotated_strings = [SKEEBALLSTRING]

current = SKEEBALLSTRING

for _ in range(len(SKEEBALLSTRING) -1):

current = rotate_string(current)

rotated_strings.append(current)

Then, in the start screen loop, cycle through rotated_strings[index] each time, incrementing index modulo 16.

This is more efficient than rotating each time.

String rotation function: the current rotate_string takes the last character and moves it to the front. So for “ABCD”, it becomes “DABC”. But the initial string is ”    SKEEBALL    ” (with spaces). Precomputing all rotations would save processing time.

Error handling: wrap I2C initialization in a try-except block to catch errors if the LCD is not connected.

Also, check if the I2C_LCD_driver initializes the I2C bus itself. If not, the current code initializes it correctly. If it does, then the manual I2C setup might be redundant.

Putting it all together, here’s how the code could be improved:

1. Add debouncing to the reset button interrupt handler.

2. Use constants for MAX_BALLS, DEBOUNCE_TIME, ROTATE_INTERVAL, etc.

3. Refactor code into functions for different states.

4. Precompute rotated strings for the title.

5. Use non-blocking delays where possible.

6. Add error handling for hardware initialization.

Now, let me draft the improved code with these changes.

Here’s an improved version of the code with the suggested enhancements:

#imports
import machine
import utime
import I2C_LCD_driver

# Constants
BUTTON_GPx = 16
SKEEBALLSTRING = "    SKEEBALL    "
SCORESTRING = "Score:{0} Ball:{1}"
I2C0 = 0  # SDA pin
I2C1 = 1  # SCL pin
POINT10PIN = 15
MAX_BALLS = 7
DEBOUNCE_DELAY_MS = 300
ROTATE_DELAY_MS = 300
SCORE_DELAY_MS = 400

# Global variables
score = 0
reset = False
scored = False
ballCount = 0
last_rotate_time = 0
rotate_index = 0
rotated_strings = []

# Hardware initialization
try:
    resetButton = machine.Pin(BUTTON_GPx, machine.Pin.IN, machine.Pin.PULL_UP)
    points10sensor = machine.Pin(POINT10PIN, machine.Pin.IN, machine.Pin.PULL_UP)
    
    sda = machine.Pin(I2C0)
    scl = machine.Pin(I2C1)
    i2c = machine.I2C(0, sda=sda, scl=scl, freq=400000)
    mylcd = I2C_LCD_driver.lcd()
except Exception as e:
    print("Initialization error:", e)
    machine.reset()

# Precompute rotated strings
if SKEEBALLSTRING:
    current = SKEEBALLSTRING
    rotated_strings.append(current)
    for _ in range(len(SKEEBALLSTRING) - 1):
        current = current[-1] + current[:-1]
        rotated_strings.append(current)

# Interrupt handlers with debouncing
def button_handler(port):
    global reset
    if not reset:
        reset = True
        port.irq(handler=None)  # Disable interrupt during debounce
        debounce_timer = machine.Timer()
        debounce_timer.init(mode=machine.Timer.ONE_SHOT, period=DEBOUNCE_DELAY_MS, 
                           callback=lambda t: port.irq(handler=button_handler))

def handler_10(port):
    global score, scored, ballCount
    if not scored:
        scored = True
        score += 10
        ballCount += 1

# Display functions
def update_score_display():
    mylcd.lcd_display_string(SCORESTRING.format(score, ballCount), 2)

def show_final_score():
    mylcd.lcd_display_string("Final score: {}    ".format(score), 2)

# Game states
def show_start_screen():
    global reset, rotate_index, last_rotate_time
    reset = False
    rotate_index = 0
    mylcd.lcd_clear()
    mylcd.lcd_display_string(SKEEBALLSTRING, 1)
    
    while not reset:
        current_time = utime.ticks_ms()
        if utime.ticks_diff(current_time, last_rotate_time) >= ROTATE_DELAY_MS:
            mylcd.lcd_display_string(rotated_strings[rotate_index], 1)
            rotate_index = (rotate_index + 1) % len(rotated_strings)
            last_rotate_time = current_time
        utime.sleep_ms(10)

def play_game():
    global reset, score, ballCount, scored
    reset = False
    score = 0
    ballCount = 0
    scored = False
    mylcd.lcd_clear()
    mylcd.lcd_display_string(SKEEBALLSTRING, 1)
    
    last_score_update = utime.ticks_ms()
    while not reset and ballCount < MAX_BALLS:
        current_time = utime.ticks_ms()
        if utime.ticks_diff(current_time, last_score_update) >= SCORE_DELAY_MS:
            update_score_display()
            scored = False  # Reset scored flag after delay
            last_score_update = current_time
        utime.sleep_ms(10)

def game_loop():
    resetButton.irq(trigger=machine.Pin.IRQ_RISING, handler=button_handler)
    points10sensor.irq(trigger=machine.Pin.IRQ_RISING, handler=handler_10)
    
    while True:
        show_start_screen()
        play_game()
        
        # Show final score until reset
        while not reset:
            show_final_score()
            utime.sleep_ms(10)

# Main execution
if __name__ == "__main__":
    try:
        game_loop()
    except KeyboardInterrupt:
        mylcd.lcd_clear()
        machine.reset()

Key improvements made:

1. Debouncing: Added timer-based debouncing for the reset button
2. Constants: Added named constants for magic numbers
3. Precomputed Rotations: Rotated strings are precomputed for better performance
4. Non-blocking Delays: Used timestamp comparisons instead of sleep() where possible
5. Modular Structure: Split functionality into distinct functions for different game states
6. Error Handling: Added basic error handling for hardware initialization
7. LCD Management: Created dedicated display functions and proper clearing
8. Interrupt Management: Added proper interrupt disabling during debounce periods
9. Global Variables: Organized global variables more systematically
10. Efficiency: Reduced blocking calls and improved main loop responsiveness

This version should be more robust, maintainable, and efficient while maintaining the original functionality.

It may take a while to go through all that analysis but it definitely gave me some things to think about on a relatively small piece of code. You might easily be overwhelmed with feedback on any substantial code base. I will definitely use Deepseek as a coding partner. When I asked it to create the code from scratch, it timed out without giving an answer. I have had it respond effectively on other generate from scratch quesitons, but I’ve not tested the answers thoroughly yet.