Hello all.

I currently have working code that shares the spi bus between a vs1053 and a TFT on 2 different tasks.

Using a SemaphoreHandle_t and xSemaphoreCreateMutex() this works fine.

Now I want to access the spi bus for sdcard access from a third task .

Can I just use xSemaphoreTake(spiMutex ...

Thanks. I read the FreeRTOS thing. I like FreeRTOS a lot, but only have experience on esp32.

You know of any mcu that implements the privilege?

Hi all.

Searched the forum search (which sucks very hard) and the esp-idf documentation but could not find anything related.

I want to know if the `portPRIVILEGE_BIT` setting on a task does anything and if so what?
Take for example this piece of code:

taskResult = xTaskCreate(
serverTask ...

Bump.

@ESP_igrr There are still no drawings with the dimensions to find for the dev boards.

Like permal said, these drawings should/could be uploaded to docs.espressif.com.

I made a mediaplayer for esp32 that plays webstreams and your local files from a http server.
The interface is completely web-based.
It compiles in the Arduino IDE.

To browse the local files you need to copy a php script to the http server.

https://github.com/CelliesProjects/eStreamPlayer32

@bobtidey
The resistor (I use 20K) gate -> ground is present.
Thanks for the tip about IRF3708, I think I will buy and test some of those.

@Saakje
If you are using an NPN power transistor, then yes, you will need a resistor and you will pull current into the base.


Do you maybe have some ...

If you are using an NPN power transistor, then yes, you will need a resistor and you will pull current into the base.


Hi Saakje.
I am using IRLZ44N mosfets so a gate resistor should be includeed in my opinion. While testing I drove the mosfets a while without gate resistors and no bad things ...

I read about the increased maximum drive strength on GPIOs and went looking for an example.
Could not find one and just tried some code on a MH-ET LIVE minikit.
The code compiles and the esp did not blow up!
void setup()
{
pinMode( LED0_PIN, OUTPUT );
pinMode( LED1_PIN, OUTPUT );
pinMode( LED2 ...

@ESP_Angus & WiFive: Thanks for the explanation. Made things clear.

For reference (from https://github.com/espressif/esp-idf/blob/cc2d1fda964afb310c0ffa9b1bf9d2065b7121f2/components/soc/esp32/include/soc/efuse_reg.h#L94-L99 ):

/* EFUSE_RD_CHIP_CPU_FREQ_RATED : R/W ;bitpos:[13] ;default: 1'b0 ...

Today I received some new MH-ET mini kits .

With esptool 2.3.1 ( on Linux Mint 17.2 Rafaela ) I get this output when I flash the chip:

Connecting.....
Chip is ESP32D0WDQ6 (revision (unknown 0xa)
Features: WiFi, BT, Dual Core, VRef calibration in efuse


The markings on the RF can are also a bit ...