I'm sorry if I was not very clear. I have 4 "normal" buttons and 1 rotary push button (= rotary encoder and push button at the same time). I started speaking about the buttons, I searched solution for them but, when I worried about the rotary encoder, I saw some differences and spoke about it. Final...

Wow! This solution seems extremely elegant! Thank you.

Thank you Susan ! I will try timer interrupt ... one more think I need to learn ;) I tried a software timer (with FreeRTOS). With a 20ms period I don't need to debounce. The task check the GPIO level and always get an already stable value. But ... this doesn't work with the rotary button. The 2 sign...

Thank you WiFive ! You must be right. But 10msec filter seems too high, the problem already exists for a 1 millisecond one. After zooming I see very very small peaks with a width about 1-10 usec. With the current filter the rising slope is probably not enough vertical. The capacitor is too high. I'l...

Hi ! I have some precisions. I have logged times of each interrupt. I press the button at 0 usec, 2 falling interrupts occurred 234031 and 234093 usec later (62 usec between the last). Oscilloscope gives a normal shape, without any bounce. I tried other buttons, even a rotary one. Interrupts always ...

Hi ! I try to detect a button click and have adapted code from gpio example : #include <stdio.h> #include <string.h> #include <stdlib.h> #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "freertos/queue.h" #include "driver/gpio.h" #define GPIO_BTN GPIO_NUM_13 #define ESP_INTR_FLAG_D...

I just took my multimeter and measured the battery voltage. LiPo are given for 3.7V and I found 3.64V.

Regards.

Thank you for replying :) Tihs is my function to calculate voltage : voltage = 2.0 x 3.64 x measure / 4096.0 (=> 3.64 x measure / 2048 to avoid useless operations) with : - measure = analogRead(_VBAT) - 3.64 = battery voltage I already have other buttons, 4 more, on GPIO 00 - 13 - 32 - 33, and no in...

No one has ever tried to measure the voltage ?

I'm not sure it's an Arduino problem. But, why not ?!