hello,

What does the max_transfer_sz parameter do exactly?

does it mean that the driver will allocate a buffer of that size? or will it use my buffer?

Cyrille

Hello, I am using a TTGO board with a LCD, no PSRAM, and I want to use the SPI to send a full LCD frame (64KBytes) to the LCD. I am using the spi API described here: https://docs.espressif.com/projects/esp-idf/en/v5.2.3/esp32/api-reference/peripherals/spi_master.html#application-example The data is ...

Hello, Can an esp32 have at the SAME time a wifi connection (AP or client) and some other local connection (like esp-now, BT or some other ESP to ESP wifi connection)? My project is a 2 part thing. Part 1 has an esp32 driving 2 stepper motors. Part 2 has an esp32 driving a screen and buttons (UI). I...

Hello, I need to send (repeatedly) a pack of 512 bytes using I2C in a non blocking manner... Something along the lines of: ``` void myLoop() { while (true) { do stuff if (done sending through I2C) start_sendig_I2c(512 bytes buffer) do more stuff } } ``` I have had a look at the I2C driver, and all I...

Hello,

Thanks for the link and info...

Is there a way, in arduino systems, to load previous versions of API/board dev so as not to have this type of issues?
I faced the same problem with another project (on an other board)...

Cyrille

Hello, I am restarting work on a project that I was working with based on an ESP32-CAM. I changed PC and had to re-install the arduino system and the ESP board support. Now, my project does not compile anymore (while it compiles on the old computer when I take it out of storage, but this is not a go...

Hello, I am kind of in an odball case. Both PWM and LDEC are close, but not really what I need. The main issue is that I do not know in advance how many pulses will ultimately need to be generated as request can be to add or remove pulses... So any library or system that I use will need to have some...

Hello, > Use Ticker But Ticker seems to run as a FreeRTOS task, this means that the timing is limited by the RTOS main timer (is it the standard 1Khz?) and that timing is only aproximative... > Note that turning on/off a gpio can take up to 50-60 ms, possibly even more if it is attached to a mutex p...

Hello,

Thanks for the pointer to the code.

When you say that I should not interract with HW in interrupt, do you mean that I can not set/clear GPIO pins in interrupt (which is what I need to do) here?

Thanks,
Cyrille

Hello, I am working on an esp32-cam board using the arduino IDE... Can someone give me some sample code to setup a function that would be called 10000 times per second (on a 100micro second basis)? The function will be very simple and short so it can run under interupt.. A task based sleep however w...