Topics created by Amani4791

If you feel like the canvas method is too much effort - especially if it part of a larger project or you prefer M5GFX - then here is a working switch in M5GFX:

import os, sys, io import M5 from M5 import * import time Switch1 = None Switch2 = None Switch3 = None Knob = None state = None touch = None # Describe this function... def Off(): global state, touch, Switch1, Switch2, Switch3, Knob state = 0 Knob.setCursor(x=145, y=119) Switch1.setColor(color=0x999999, fill_c=0x999999) Switch2.setColor(color=0x999999, fill_c=0x999999) Knob.setColor(color=0xffffff, fill_c=0xffffff) # Describe this function... def On(): global state, touch, Switch1, Switch2, Switch3, Knob state = 1 Knob.setCursor(x=174, y=119) Switch2.setColor(color=0x33ccff, fill_c=0x33ccff) Switch3.setColor(color=0x33ccff, fill_c=0x33ccff) Knob.setColor(color=0xffffff, fill_c=0xffffff) def setup(): global Switch1, Switch2, Switch3, Knob, state, touch M5.begin() Widgets.setRotation(1) Widgets.fillScreen(0x222222) Switch1 = Widgets.Circle(174, 119, 14, 0xa4a4a4, 0xa4a4a4) Switch2 = Widgets.Rectangle(145, 105, 28, 28, 0xa4a4a4, 0xa4a4a4) Switch3 = Widgets.Circle(145, 119, 14, 0xa4a4a4, 0xa4a4a4) Knob = Widgets.Circle(145, 119, 14, 0xffffff, 0xffffff) Off() def loop(): global Switch1, Switch2, Switch3, Knob, state, touch M5.update() touch = M5.Touch.getCount() if touch != 0: if (M5.Touch.getX()) >= 131 and (M5.Touch.getX()) <= 188 and (M5.Touch.getY()) >= 105 and (M5.Touch.getY()) <= 133: if state == 0: On() else: Off() time.sleep_ms(500) if __name__ == '__main__': try: setup() while True: loop() except (Exception, KeyboardInterrupt) as e: try: from utility import print_error_msg print_error_msg(e) except ImportError: print("please update to latest firmware")

@Amani , I also need to measure frequency using an M5 Stack Core 2. I was looking at your code and wondering if you ever solved this problem? I see that you're using a counter that's incremented in an interrupt handler. How do you get the frequency from that?

The way I understand Micro Python interrupts is that they're soft and give you jitter of some milliseconds, like over 2. Because the M5 Stack UIFlow runs on top of Micro Python, it does not seem likely that interrupts with adequate resolution are possible. You'll be lucky to measure a 500Hz signal.

But I'm very interested to hear if you came up with a solution.

I'm planning to solve this problem with a frequency to voltage converter. TI makes a low voltage part, LM331. The output is a voltage proportional to frequency that can be input to an ADC pin. Here's a link to the datasheet, https://www.ti.com/lit/ds/symlink/lm331.pdf

I don't see another way to solve this problem using an M5 Stack. I'm hoping you found one that you can tell me about.

Thanks