Search found 4 matches
- Sun Jan 10, 2021 3:42 pm
- Forum: ESP32 Arduino
- Topic: External wakeup pin detect issue
- Replies: 12
- Views: 15088
Re: External wakeup pin detect issue
Finally, https://www.allaboutcircuits.com/technical-articles/switch-bounce-how-to-deal-with-it/ gave some clear examples on hardware debouncing using just a capacitor and led to my solution. With a 104 100nF capacitor as shown on the link above, I was able to correctly determine the wake pin from th...
- Sun Jan 10, 2021 9:36 am
- Forum: ESP32 Arduino
- Topic: External wakeup pin detect issue
- Replies: 12
- Views: 15088
Re: External wakeup pin detect issue
https://circuitdigest.com/electronic-circuits/what-is-switch-bouncing-and-how-to-prevent-it-using-debounce-circuit this was also good and suggests hardware solutions to bouncing. I may try to find such components to try it out. Unfortunately I'm just a software developer, so don't have an oscillosco...
- Sat Jan 09, 2021 4:57 pm
- Forum: ESP32 Arduino
- Topic: External wakeup pin detect issue
- Replies: 12
- Views: 15088
Re: External wakeup pin detect issue
Had to read up on debouce, but it doesn't seem so complicated. https://www.arduino.cc/en/Tutorial/BuiltInExamples/Debounce explains it well. I guess the theory here is that the larger button causes spurious open/close transitions when pressed, for a longer period compared to the smaller button, so a...
- Fri Jan 08, 2021 6:45 pm
- Forum: ESP32 Arduino
- Topic: External wakeup pin detect issue
- Replies: 12
- Views: 15088
Re: External wakeup pin detect issue
I have hit this exact issue. It took me a while to find a thread on the subject, albeit an old one. I'm wondering if someone can explain a little more. @Rudy12 suggests there may in insufficient voltage or current, which sounds plausible, but the esp32 does wake with both buttons. However, esp_sleep...