Webserver. RESTful needs a webserver and is about how the interface is presented and manipulated really rather than being an answer itself (e.g. I could use HTTP GET to update parameters but that is not RESTful). Lets say that your webserver is index.html with linked pages /users.html and /parameter...

C++ is not C! C++17 even removes trigraths although I think ESP toolchain is C++11/14 ATM. Won't be long though. Also you might have different compiler flags in your make file from C to CPP. I often do. I would say that C++ warnings and errors are there for a reason. Code developed in C might miss t...

Like Wifi says, mutex. May add an extra mutex but cost is low and you can sleep safe. Its not normal to use a device/driver from multiple threads. If the driver has to cover these RT bases then the driver would get fat and slow. So best that these particular use/cases are handled at the application ...

Hey, Your post is not very clear: I have Host MCU with LwIP stack which creates complete WiFi frames What is a 'complete Wifi frame' & how does having a complete Wifi frame relate to your problem? but this variant suggesting to use AT commands over SPI, and i already have completed TCP/IP packages, ...

There is a lot to go wrong from an MQTT client to a remote server! Looks like you timeout, no response (CONACK) from server. As I remember it the 'transport_read() error' indicates no data returned. There were a couple of similar reports though so I modified the error report for clarity. If so then ...

If; (a) ESP32, (b) 32 bit or less read/writes, (c) one task only reads, one task only writes and (d) DRAM memory then you will be ok.

You will understand why you might not be ok if you used PSRAM.

Personally I would use both belt and braces and so std::atomic.

OK. That makes sense. 1) Obviously the ADC would have to be 32 bits or less. 2) As long as you are using DRAM, write/read in an atomic unit then that's fine (e.g. uint32_t results = reading; rather than memcpy) A 24bit ADC might not work with certain optimisations e.g. if you pack the array. I would...

It does not matter if the data is out of sync for a while It is not clear what you mean by this. Am I correct? It depends but I would say no. I am sure that you understand the multitasking issues. Its easy to overlook execution order issues however: https://www.modernescpp.com/index.php/sequential-...

80uS is a little more than I would expect. I measured around 20uS with DMA enabled and around 16uS without DMA. I doubt that the OS tick period has much to do with this, 80uS is much faster than any reasonable scheduler tick. The main issue is that the SPI driver reprograms the hardware when you sta...

What do you have connected to 5V vin i.e. what power source? The device needs around 70mA & so should be good with most power supplies. ESP gets a little dodgy on USB power when running hot and with peripherals. An external PSU is recommended. Is the device 5V or 3.3V logic? You might need level shi...