Hi, I'm trying to connect two I2C devices (VL53L0X) to my ESP32 using interrupts but I can't find any examples with the combination of Arduino/ ESP32/I2C/interrupts. I've found every other combination but not the one I need. Can anyone help with code or a description or an alternative way to do this...

Hi, Thanks for the extra information. I think I now have a version of it working that (so far) meets my needs: #include "TickTwo.h" int BTN_SELECT = 18; long int modeLastChanged = 0; int iTime = 10; void timeMessage() { Serial.println(iTime); if (iTime && --iTime == 0) Serial.println("timer done"); ...

Thanks, both. A few more questions, then... @felmue. You suggest a 10 second timer: does that mean setting timerWrite to 10,000,000? I think I understand why no interrupt is required but could you just spell it out for me, please? @lbernstone. I'm happy not to use interrupts but I thought there was ...

Hi, I thought this would be a simple matter but I have spent DAYS trying to resolve it for myself with no luck. I simply want to create a countdown timer using hardware interrupts (because there a number of other things going on) and that the countdown appear on a display, counting down seconds to z...

Can anyone point me in the direction of any performance data for streaming video from esp32 over wifi? I'd like to understand which combination will give me the best resolution/frame rate with factors such as psram, camera type, config, protocol, etc. It has a direct bearing on a project I am workin...

Hi, You may remember I was having issues with the designer. I finally got my money back but I want to use the design as the basis of version 2, if possible. The first design didn't have flash, so, I guess I have a couple of options. a) add external flash b) use an ESP chip that includes flash. Optio...

So, should I be using the same clock or the separate clock for the flash? Does it matter?

And does anyone know what /CS and /HOLD etc is?

Ah! So, I think I have the pins correct but the wrong labels on them. I'll double check that shortly. As for the clk pin, according to the hardware guidelines, psram and flash can share the same clock, though there is a separate clock on the esp32. At least, that's my understanding. Also, can you te...

Here is the table:

I have marked, in red circles, where I think the soldering should be done but I'd be grateful for any thoughts anyone has on what I have said and shown.

Thanks.

Hi, I'm waiting for a new design from the designer, who has admitted that he missed the flash chip of the first design. I'm still keen to have a go at fixing the original board and I have more information now about the flash chip to use. I've also done a bit of research and I believe that I now know...