Search found 101 matches

by tommeyers
Wed Jan 01, 2020 5:57 pm
Forum: ESP32 Arduino
Topic: PWM controlled fan tacho wrong
Replies: 16
Views: 835

Re: PWM controlled fan tacho wrong

Esp_sprite I too think that will reveal the cause which is that the signal while in essence is correct is noisy or has bounce.

Without a scope it could be tested by rotating very slowly to by hand an reporting the rpm.

Tom Meyers
by tommeyers
Tue Dec 17, 2019 9:08 pm
Forum: ESP32 Arduino
Topic: How to send a signal through 2 wires using rmt.h ?
Replies: 5
Views: 422

Re: How to send a signal through 2 wires using rmt.h ?

George i don't see the similarities with this code: void outwiegbit(unsigned int b) { int sel = b == 0 ? W_D0 : W_D1; digitalWrite(sel, 0); delayMicroseconds(80); digitalWrite(sel, 1); delayMicroseconds(240); } You wiggle one or the other. This wiggles both at the same time. See what think. Tom
by tommeyers
Fri Dec 13, 2019 2:04 pm
Forum: ESP32 Arduino
Topic: How to send a signal through 2 wires using rmt.h ?
Replies: 5
Views: 422

Re: How to send a signal through 2 wires using rmt.h ?

Goerge, Oops, I read through that too quickly. Here is another try an transmitting: https://www.codeproject.com/Articles/1250921/Wieganduino-Generate-Wiegand-Codes-with-Arduino I thought it would be necessary to invert the second line from the first. This shows how to wiggle each line in code. Tom M...
by tommeyers
Thu Dec 12, 2019 8:09 pm
Forum: ESP32 Arduino
Topic: How to send a signal through 2 wires using rmt.h ?
Replies: 5
Views: 422

Re: How to send a signal through 2 wires using rmt.h ?

Take a look here: https://www.arduinolibraries.info/libra ... nd-library

In the in file there is a readme that describes the protocol.

Maybe the code could be adapted to your project.

Tom Meyers
by tommeyers
Sun Dec 08, 2019 5:06 pm
Forum: ESP32 Arduino
Topic: Real-time data streaming over WiFi
Replies: 4
Views: 456

Re: Real-time data streaming over WiFi

Was TCP too slow for your sample rate

Tom Meyers
by tommeyers
Wed Dec 04, 2019 10:41 pm
Forum: ESP32 IDF
Topic: crude idea for log storage/retrieval
Replies: 1
Views: 122

Re: crude idea for log storage/retrieval

Good idea; logging is necessary for support-ability. Depending upon what you see in the bursts of log entries it might help keep a more complete history if duplicates of the last entry were simply added to a counter of the last entry. It might prevent the wrap around of the log for bursts of duplica...
by tommeyers
Wed Dec 04, 2019 10:34 pm
Forum: ESP32 Arduino
Topic: RMT Implmentation - HELP!!!
Replies: 2
Views: 253

Re: RMT Implmentation - HELP!!!

I went looking for examples of rmt and arduino (google esp32 arduino rmt example) There seems to be a lot written about that. Can you narrow down what you need that is not addressed in the above or in https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/peripherals/rmt.html Tom Meyers
by tommeyers
Mon Dec 02, 2019 3:11 pm
Forum: ESP32 Arduino
Topic: Touch debounce for esp32
Replies: 3
Views: 250

Re: Touch debounce for esp32 - Spoon-feed me

What have you tried? Where have you searched using google: "esp32 touch sensor".

Do you need to be spoon-fed?

Tom Meyers
by tommeyers
Wed Nov 27, 2019 5:20 pm
Forum: ESP32 Arduino
Topic: Send picture over gprs, smtp, softwareSerial, received damaged!!?
Replies: 4
Views: 323

Re: Send picture over gprs, smtp, softwareSerial, received damaged!!?

I saw one posting: "Hi, i am trying to send an email with a jpg picture using sim800L. I can send everything but i cant read the received picture. after analyzing the original one i found that the received picture always has before a 0x0A byte, a 0x0D byte. Example: original byte sequence: 0x0A, 0xB...
by tommeyers
Fri Nov 22, 2019 9:21 pm
Forum: ESP32 IDF
Topic: MQTT: Wildcard support
Replies: 4
Views: 427

Re: MQTT: Wildcard support

One other suggestion:

My MQTT broker (mosquitto) gives me some tools for debug and monitor:

I can start the broker with verbose logging and see all kinds of events

There is a generic subscriber

There is a generic publisher.

Good tools for an MQTT developer.

Tom Meyers

Go to advanced search