Wifi, Do you have the commit details? I should check that all issues have been addressed. There were at least 2 errors. (1) The driver would lock failed after overflow, reboot being the only recovery. Try switching interrupts off for 100mS and you will see. (2) Corrupt data getting through. I could ...

How do you know that the baud rate changes? Have you measured the bit rates? A long time ago I was a little out in my UART clock and this, from time to time, allowed other effects to corrupt (being marginal already). Thing was my configuration was wrong! On the ESP32 I have seen weird I2C (not I2S) ...

I have a project which has a complex analogue I2C slave device. I want to automate tests & build in some determinism. The device is a set of I2C registers. Some registers hold the analogue value, others are used to configure. We use a hard coded configuration so it is enough just to check that confi...

Keep in mind that DMA can be counter productive for small transfers. One of my SPI channels is a cheap MPC2515 and that is a very chatty device with between 3 and 8 byte transfers. Latency & setup really kill that through put. On the short transfers I measured that no DMA was faster. Basically the S...

Qualcomm and NXP seem to offer solutions (but still below Espressif in terms in functionality and cost) Exactly, 'you pays your money....' So (basically) finding a silicon sweet spot is very tricky! Also very tricky for anyone else to review that trade without knowing your ram/flash etc requirement...

I think my earlier posts will just repeat what I said. SPP is an ESP BT example I think. There is not a BLE SPP profile. There are plenty of examples about emulating SPP over BLE however. I seem to remember that I copied an STM32 application guide. This coupled with the ESP examples gave me the mean...

Search for ioctrl.h in the ESP folder. If it does not exists download and add somewhere (but eventually this might cause other issues which you then have to resolve). Next & also if IDF has icotrl.h you need to update your search path. In your 'component.mk' add something like: COMPONENT_ADD_INCLUDE...

'The chip and firmware may be "fine"' Maybe but are not. CAN silicon is especially an issue for me. Have acceptable IDF patches (thank you ESP) on my IDF revision but then ESP refactor between versions with huge changes & my patches no longer works & I do not have a clear/easy route forward. So the...

Well it depends on your bandwidth needs/requirements. BLE/BT would be a good starter using SPP if linking to a phone. Look at this way, how may Phone periperals use Wifi? Why do you think Wifi? If point to point then BLE/BT might be better. Regardless of transport link you need to be clear about lat...

As I read this; it does not work at volume on your board. I did not hear you say that it works at volume on an EVB.
Plz clarify. A simple trueth table would help.
When I read 'custom' its a fair bet to ask OP to post the 'custom' code or schematics. Post your schematics.