Search found 87 matches

by tommeyers
Mon Sep 02, 2019 6:49 pm
Forum: ESP32 IDF
Topic: ESP32 Remote Control Using MQTT
Replies: 4
Views: 334

Re: ESP32 Remote Control Using MQTT

Yes.

Just follow the MQTT process of subscibe/...

I am using MQTT for sensors/actuators on esp32.
by tommeyers
Sun Sep 01, 2019 4:14 pm
Forum: Hardware
Topic: Connecting phone to ESP32 with serial link
Replies: 6
Views: 1406

Re: Connecting phone to ESP32 with serial link

If you search a little you will find headphone to Serial connections wired and IR.
by tommeyers
Sat Aug 24, 2019 1:39 pm
Forum: ESP32 Arduino
Topic: Storing 3D array in memory
Replies: 3
Views: 399

Re: Storing 3D array in memory

"It doesn't work" is not much to go on. So if offer a method I have used to store, retrive and manage my own 2, 3, 4, 5 ... dimensional tables stored in memory or disk or ... . A more experienced C programmer will maybe make it easier; first: int *myInt then: function int fetchMyInt(int x, int y, in...
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: 1356

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: 822

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: 969

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: 1407

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: 1407

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: 1387

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.

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