Adding my edit to the code - Hussain

[HUSSAIN1711]

(only changed one component "TM1637Display1.cpp")

[alxkeda]

looks fine

• might consider changing esp_rom_delay_us to a non-blocking vtaskdelay (rtos) because it is called in an rtos task (checkbuttonpressed)
• can you rename for us the TM1637Display.cpp file to countdown.cpp or something like that since it contains the function definitions for the countdown functionality, not the lib functions for the display (and then you can also change tm1637display1 to tm1637display)
• edit chad's countdown code to use the display.start() .stop() member functions (probably not needed but for clarity)
• if its not working, you could quickly test that the pins youre using to interface with the display are working. i was having issues with pins 12/13 when i was getting the ultrasonic sensor to work. pins 2 and 16 worked for me, just make sure there is no overlap between the button input pin
• on that same note, i believe we are using pin 14 to check the button and i would create some macros for that pin so its a little clearer
• additionally, we're using 1/3 right now so i would test that they are working, can ask anthony or krish about the debugger or you can just test that things are working with the esp logging component (esp_logi(), etc.). particularly i think it would be useful to log a message to the esp monitor in vscode whenever the button is pressed, that way you can troubleshoot whether the issue is with the button or the countdown code