Search found 63 matches

by tommeyers
Sat Jun 01, 2019 9:45 pm
Forum: General Discussion
Topic: What is the best practice for push-button event tracking/handling without any hardware debouncing circuit
Replies: 7
Views: 669

Re: What is the best practice for push-button event tracking/handling without any hardware debouncing circuit

If you have an oscilloscope take a look. If not, draw a trace with bounce when first pressed, then stable, then bounce when released. Draw two traces. a long press and a short press. bounce bounce bounce stable0 stable0 stable0 bounce bounce bounce stable1 stable1 ... ............................^ g...
by tommeyers
Sat May 04, 2019 1:55 pm
Forum: ESP32 IDF
Topic: #define accesible at specific location in flash?
Replies: 2
Views: 517

Re: #define accesible at specific location in flash?

It sounds like you may need to study the preprocessor and how that works. In short: #define does not directly put anything in memory; You can use it to do that and a lot more. I recommend that you study a little.
by tommeyers
Tue Apr 02, 2019 1:13 am
Forum: General Discussion
Topic: C compiler for ULP
Replies: 3
Views: 541

Re: C compiler for ULP

thanks now i can use the ULP without so much pain.
by tommeyers
Sun Mar 17, 2019 12:40 am
Forum: ESP32 IDF
Topic: Interrupts triggered multiple times when pins are touched
Replies: 5
Views: 1039

Re: Interrupts triggered multiple times when pins are touched

Pulling it up will make it clearly High as compared to "Floating high" . But, if you have a switch on that pin (andit is pulled high) twhen closed will make it low (pin to switch to ground) when you make that switch the signal will bounce and finally settle at low. You need to debounce in software; ...
by tommeyers
Sat Mar 16, 2019 12:39 am
Forum: ESP32 IDF
Topic: Interrupts triggered multiple times when pins are touched
Replies: 5
Views: 1039

Re: Interrupts triggered multiple times when pins are touched

Do you have a bounce problem? Have you looked at it on a scope? Are you debouncing?
by tommeyers
Sat Dec 15, 2018 11:51 pm
Forum: ESP IoT Solution
Topic: trying to send buffer data to node-red through mqtt
Replies: 4
Views: 1060

Re: trying to send buffer data to node-red through mqtt

So you are not using an mqtt broker. If so, install and use an mqtt broker.
by tommeyers
Tue Dec 11, 2018 12:23 pm
Forum: ESP IoT Solution
Topic: trying to send buffer data to node-red through mqtt
Replies: 4
Views: 1060

Re: trying to send buffer data to node-red through mqtt

It is not clear what the problem is. What did you observe?

For more completer info:

Start MQTT Broker in verbose

Subscribe to all messages (#) with subscribe tool
by tommeyers
Fri Nov 16, 2018 9:53 pm
Forum: ESP32 IDF
Topic: [SOLVED] Severe Limitation to APSTA Mode
Replies: 7
Views: 1409

Re: Severe Limitation to APSTA Mode

Using the esp32/Arduino for a very similar task I found the components to be "fragile" and broke them a lot. I used the STA to connect for MQTT and AP for serving a web page for configuration. One thing that I found helpful was to capture all of the events and print them to serial. You may get more ...
by tommeyers
Tue Nov 13, 2018 9:04 pm
Forum: ESP32 IDF
Topic: IO output
Replies: 5
Views: 660

Re: IO output

I believe that the internal pull-ups *can* be activated by code but I don't think by default are they activated. In your case it sounded like high was what caused the sound generator because:!===> without a signal from the processor they "float" and to the sound driver they appear high. So, the solu...
by tommeyers
Tue Nov 13, 2018 2:33 pm
Forum: ESP32 Arduino
Topic: Technical Parameters of ESP-WROOM-32
Replies: 3
Views: 780

Re: Technical Parameters of ESP-WROOM-32

I think *you* need to do some work; begin to reading the technical specifications!

Then post again when you have done that; and post a list of what you have read and if any questions still remain this is a good place to ask for help.

Tom Meyers

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