Search found 59 matches

by JoaoLopesF
Tue May 22, 2018 2:35 pm
Forum: General Discussion
Topic: Sigma-delta or Led Channel (PWM)? Which is better?
Replies: 6
Views: 1699

Re: Sigma-delta or Led Channel (PWM)? Which is better?

Archibald,
Beware of photosensitive epilepsy (link).
I knew this, your advice is true for avoid problems with epileptics
in my view it is inadvisable to connect a capacitor between output pin and ground without a series resistor
This is true to me too

Thanks for your response
by JoaoLopesF
Fri May 18, 2018 11:13 pm
Forum: General Discussion
Topic: Sending more than 20 bytes with BLE
Replies: 15
Views: 5407

Re: Sending more than 20 bytes with BLE

I had the same problem of he limit of Ble payload :-(. My Mobiles Apps need more than this ... In my projects with ESP32, for the Ble connection, I use the C routines of pcbreflux ( ble_uart_server ): (thanks pcbreflux for it). With Esp-IDF 3.0, I migrated everything to C++ except the pcbreflux ble ...
by JoaoLopesF
Fri May 18, 2018 8:23 pm
Forum: General Discussion
Topic: Sigma-delta or Led Channel (PWM)? Which is better?
Replies: 6
Views: 1699

Sigma-delta or Led Channel (PWM)? Which is better?

I'm working on a project. This have 8 channels (Sigma-Delta ou LedC) of ESP32 connected to leds. Frequencies of blink can vary from 0.2 to 50 Hz (ussually 0.5 to 20 Hz). I did work with both types (by #define): - With sigma-delta - With Led channel Technically sigma-delta is better than PWM (LedC), ...
by JoaoLopesF
Sun Dec 03, 2017 11:51 am
Forum: ESP32 Arduino
Topic: Pulse Sensor Amped adapted for ESP32
Replies: 1
Views: 3920

Re: Pulse Sensor Amped adapted for ESP32

Gengus_Kahn, Hi

Thanks a lot

Joao
by JoaoLopesF
Fri Nov 03, 2017 3:13 pm
Forum: General Discussion
Topic: USB Host (MAX3421E)
Replies: 2
Views: 2426

Re: USB Host (MAX3421E)

Hi, kurtzweber

The device with ATMega 2580, is closed , I cant plug RX/TX, only by USB Host by USB cable, ok ?

Thanks

Joao
by JoaoLopesF
Tue Oct 31, 2017 3:02 pm
Forum: ESP32 Arduino
Topic: Core Debug Level
Replies: 1
Views: 2092

Re: Core Debug Level

Hi, My application is rebooting. In ESP32 IDF I have debuging trace to find the cause, in Arduino I too can not change the Debug Level, so no debug to help :cry: Where we can change this ? SOLVED I can view this trace with EspExceptionDecoder https://github.com/me-no-dev/EspExceptionDecoder Regards ...
by JoaoLopesF
Tue Oct 31, 2017 1:21 pm
Forum: ESP32 Arduino
Topic: idf_monitor in Arduino
Replies: 0
Views: 610

idf_monitor in Arduino

Hi,

In ESP32 IDF I like the idf_monitor.

In Arduino how use this ? This is possible ?

And

Code: Select all

make config
to access the configurations ?

Regards

Joao
by JoaoLopesF
Tue Oct 31, 2017 1:17 pm
Forum: ESP32 Arduino
Topic: WiFi.setOutputPower ?
Replies: 2
Views: 1839

WiFi.setOutputPower ?

Hi,
In ESP8266 Arduino we have this command to reduce WiFi output power:

Code: Select all

WiFi.setOutputPower(0)
In ESP32 Arduino how I do it ?

Regards

Joao
by JoaoLopesF
Mon Oct 09, 2017 8:30 pm
Forum: General Discussion
Topic: USB Host (MAX3421E)
Replies: 2
Views: 2426

USB Host (MAX3421E)

Hi,

Someone got the ESP32 working with Usb Host chip Max3421E (mini usb host board) to plug an Arduino Mega?

Regards

Joao
by JoaoLopesF
Mon Oct 02, 2017 2:54 pm
Forum: General Discussion
Topic: app_main and APP_CPU
Replies: 4
Views: 1744

Re: app_main and APP_CPU

Hi ESP_Sprite,

Thanks for this response

Regards

Joao Lopes