I was able to make this work last night, using the following GPIOs: RF24 radio(12,5); // CE, CSN And the following GPIOs: MOSI - 23 MISO - 19 SCK - 18 SS(CSN) - 5 CE - 12 These appear to be the ESP32 driver defaults (except for CE, CSN provided in the constructor). To use other GPIOs may require som...

In shiftA.begin((gpio_num_t)18,(gpio_num_t)19,(gpio_num_t)21,1); is not wrong, but in C++ better cast as: shiftA.begin(gpio_num_t(18),gpio_num_t(19),gpio_num_t(21),1); The reason for this is that in C++, casting can be overridden for the type. I don't believe the overriding code is executed if you u...

Well, it looks like you need to perform some debugging to narrow down the cause of the problem. The source code seems to be available here https://github.com/Xinyuan-LilyGO/esp32-camera-series/blob/master/esp32-camera-series.ino , so download it and load it up into your Arduino IDE. Start adding Ser...

If it is just more GPIO pins that you need, input or output, use an I/O expander chip like the PCF8574, which communicates over I2C. Of course, this won't do if you need high I/O bandwidth, but serves well for low I/O GPIO ports. Put your high bandwidth GPIOs on the ESP32 and allocate low bw on the ...

One should also be careful to distinguish between the FreeRTOS binary semaphore and the FreeRTOS mutex. Both use the SemaphoreHandle_t type to refer to the resource, but are substantially different. The binary semaphore is created (initialized) as "taken", whereas the mutex is created as "given". Th...

I wouldn't put any faith in those results. ESD protection diodes are designed to bleed away small currents that static electricity produces (high voltages but small currents). As such, they are not designed to handle much current. It is possible that you've already destroyed some of your ESD protect...

I found some macros ending in the _M suffix (like PCNT_STATUS_THRES0_M), which seem to be the correct mask values to use.

This is the example you have online at github, from the master branch:

https://github.com/espressif/esp-idf/bl ... ple_main.c

Warren

In the following code found at: https://github.com/espressif/esp-idf/blob/f91080637c054fa2b4107192719075d237ecc3ec/examples/peripherals/pcnt/main/pcnt_example_main.c the following lines are erroneous: if (evt.status & PCNT_EVT_THRES_1) { printf("THRES1 EVT\n"); } if (evt.status & PCNT_EVT_THRES_0) {...

Take some time to explore the ESP32 API documentation at https://docs.espressif.com/projects/esp-idf/en/latest/index.html . There is some functionality here, though it may differ from what you're used to in POSIX/Linux/*BSD environments: https://docs.espressif.com/projects/esp-idf/en/latest/api-refe...