Search found 20 matches

by barometre
Mon Oct 01, 2018 1:24 pm
Forum: Hardware
Topic: I2S Maximum Channels
Replies: 3
Views: 1469

Re: I2S Maximum Channels

Hi Barometre Yes - I did a simple test last year. Simple crossover filter for bass / tweeter on left channel audio but only using on i2s output from the ESP32. Should be easy to use second i2s output for right channel as well. I will check if possible on my setup as well - The amp's we design takes...
by barometre
Mon May 14, 2018 10:23 pm
Forum: Hardware
Topic: I2S Maximum Channels
Replies: 3
Views: 1469

I2S Maximum Channels

Hi, Esp32 have two i2s peripherals. Can both be configured to as output? If yes is it possible to have different output from them? I would like to build a simple boombox with simple frequency filtering. What is the maximum lrck frequency? Is it possible to have multichannel audio for crossover purpo...
by barometre
Thu Mar 29, 2018 10:37 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 334
Views: 106341

Re: What would you like to see in The Next Chip?

Hi, After using ESP32 till this time, my revised suggestions would be like this: -5ghz support -USB 2.0 slave/host options. -Some kind of lcd interface, preferably lvds -Internal video decoder/encoder (doesnt have to 1080p or something low res is okay) -TDM audio -Small DSP for audio -Preferably blu...
by barometre
Sat Feb 03, 2018 12:48 am
Forum: General Discussion
Topic: ESP32-Lyra Smart Audio
Replies: 15
Views: 12262

Re: ESP32-Lyra Smart Audio

Where can we get one?
by barometre
Tue Oct 10, 2017 11:01 am
Forum: ESP32 Arduino
Topic: Rising Edge Pin Interrupt on UART Rx
Replies: 5
Views: 1967

Re: Rising Edge Pin Interrupt on UART Rx

3 series e46 and 5 series e39 uses this interface. There are others models too but I dont know them very well actually.
by barometre
Sat Oct 07, 2017 9:52 pm
Forum: ESP32 Arduino
Topic: Rising Edge Pin Interrupt on UART Rx
Replies: 5
Views: 1967

Re: Rising Edge Pin Interrupt on UART Rx

tele_player wrote:What is this for?
For kbus it is similar to linbus. It was in use with old BMW series. After receiving last stop bit if the bus silent for 1.5ms it means it is available to send message.
by barometre
Thu Oct 05, 2017 2:31 pm
Forum: ESP32 Arduino
Topic: Rising Edge Pin Interrupt on UART Rx
Replies: 5
Views: 1967

Re: Rising Edge Pin Interrupt on UART Rx

To make it clear, actually I want to catch the idle of the bus so one byte takes around 1.04mS and the bus is on idle when it is over 1.5ms. Do you think if I use " rx_timeout_thresh" as 1, will it be appropriate? Is rx_timeout_thresh interrupts when there is no data coming to Rx port or there is no...
by barometre
Thu Oct 05, 2017 2:16 pm
Forum: ESP32 Arduino
Topic: Rising Edge Pin Interrupt on UART Rx
Replies: 5
Views: 1967

Rising Edge Pin Interrupt on UART Rx

Hi,

I want to reset a hardware timer in every rising edge of UART Rx port which works in 9600 baud rate. How can I do it without without CPU usage/interruption? Instead of using CPU interreption when it is the time I just want to check the timer value.

Thanks
by barometre
Tue Oct 03, 2017 1:37 pm
Forum: General Discussion
Topic: Stream Function of Arduino equivalent in Arduino
Replies: 2
Views: 1460

Re: Stream Function of Arduino equivalent in Arduino

Are you programming in C++? If so, I believe that the standard library functions of C++ are available to you which include I/O streaming: Have a google on "C++ and iostreams". For example: https://www.cprogramming.com/tutorial/c++-iostreams.html I have successfully used these with strings and files...
by barometre
Fri Sep 29, 2017 12:41 pm
Forum: General Discussion
Topic: Stream Function of Arduino equivalent in Arduino
Replies: 2
Views: 1460

Stream Function of Arduino equivalent in Arduino

Hi,

I am looking for the equivalent base class Stream Arduino in ESP-IDF. As far as I understand Stream is creating a class for read only from UART buffer. How can I create equivalent function in ESP-IDF?

Thanks

Go to advanced search