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Arduino is an open source platform for making electronic prototypes
Hii, is there a way in Arduino IDE or different IDEs that you run two other tasks with two cores of esp32 but set each core frequency else for sample core 0 is performing its task with 10 Mhz frequency ...Read more
Hii, is there a way in Arduino IDE or different IDEs that you run two other tasks with two cores of esp32 but set each core frequency else for sample core 0 is performing its task with 10 Mhz frequency and core1 is doing its task with 80 Mhz?
Thank you
Read lessHii, Is it possible to use the ESP32 VIN pin as a 5V output to power a 5V 2-channel relay for example? And if it’s possible, is it safe? In my design, before I use a 5V power source to power ...Read more
Hii, Is it possible to use the ESP32 VIN pin as a 5V output to power a 5V 2-channel relay for example?
And if it’s possible, is it safe?
In my design, before I use a 5V power source to power the ESP32 and the relay, I want to try out powering both the ESP32 and the relay with the USB port. I know that the ESP32 don’t have a 5V output pin as Arduino does, but I saw some projects using the VIN pin to power a 5V relay, but some other design used different power sources, one 5V for the relay and a USB power source for the ESP32.
So, is it possible or indeed safe to use the VIN pin as a power output?
Suggest you find the circuit diagram for your board, it'll show how the 5V pin is connected to the USB input or you can try to measure the resistance between the 5V pin and USB 5V in with an ohm meter. Still, it all depends on your USB power force and how much you can draw from the 5V pin, If directRead more
Suggest you find the circuit diagram for your board, it’ll show how the 5V pin is connected to the USB input or you can try to measure the resistance between the 5V pin and USB 5V in with an ohm meter.
Still, it all depends on your USB power force and how much you can draw from the 5V pin, If direct connected and/ or there are zero ohms.
While trying to understand the cam web server code in one of the examples on Arduino IDE but I’m struggling to understand the code. What is it checking for and what is it configuring and lastly why is it needed ...Read more
While trying to understand the cam web server code in one of the examples on Arduino IDE but I’m struggling to understand the code. What is it checking for and what is it configuring and lastly why is it needed in our code ? I have an AI thinker so do I still need this part of code ? Any help, links, etc. would be appreciated.
#if defined(CAMERA_MODEL_ESP_EYE) pinMode(13, INPUT_PULLUP); pinMode(14, INPUT_PULLUP); #endif // camera init esp_err_t err = esp_camera_init(&config); if (err != ESP_OK) { Serial.printf(“Camera init failed with error 0x%x”, err); return; } sensor_t * s = esp_camera_sensor_get(); // initial sensors are flipped vertically and colors are a bit saturated if (s->id.PID == OV3660_PID) { s->set_vflip(s, 1); // flip it back s->set_brightness(s, 1); // up the brightness just a bit s->set_saturation(s, -2); // lower the saturation } // drop down frame size for higher initial frame rate if(config.pixel_format == PIXFORMAT_JPEG){ s->set_framesize(s, FRAMESIZE_QVGA); } #if defined(CAMERA_MODEL_M5STACK_WIDE) || defined(CAMERA_MODEL_M5STACK_ESP32CAM) s->set_vflip(s, 1); s->set_hmirror(s, 1); #endif #if defined(CAMERA_MODEL_ESP32S3_EYE) s->set_vflip(s, 1); #endif
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If you are using ESP32CAM AI Thinker, the embedded camera is an OV2640 so only part of the code will be compiled/executed, see below. The bottom line is you could leave code as-is, it should be ok Note that frame size can take following values : frame size QQVGA(160x120),HQVGA(240x176),QVGA(320x240)Read more
If you are using ESP32CAM AI Thinker, the embedded camera is an OV2640 so only part of the code will be compiled/executed, see below.
The bottom line is you could leave code as-is, it should be ok
Note that frame size can take following values :
frame size QQVGA(160×120),HQVGA(240×176),QVGA(320×240),CIF(400×296),VGA(640×480),SVGA(800×600),XGA(1024×768),SXGA(1280×1024),UXGA(1600×1200)
Hello Ashish, No, sorry, that kind of setup is physically impossible on current ESP chips as the two cores( and the main memory, for that matter) are in the same timer domain. Thank you
Hello Ashish,
No, sorry, that kind of setup is physically impossible on current ESP chips as the two cores( and the main memory, for that matter) are in the same timer domain.
Thank you
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