ESP32 Forum

liaifat85

Along with what ESP-sprite has suggested, also check if your PCB has a manufacturing error.

liaifat85

Since it's a customized PCB, I think you should perform a QC of your PCB. Test with a multimeter. Find out if there is any accidental short circuit somewhere.

liaifat85

Try to optimize your code. Get rid of unnecessary delays, loops, or other bottlenecks that might be slowing down the transfer process.

liaifat85

These relay modules have built-in opto isolation.

https://arduino.stackexchange.com/quest ... th-nodemcu
https://www.youtube.com/watch?v=N1VQ7RT7ajU

liaifat85

Here is a similar type of problem: https://esp32.com/viewtopic.php?t=13923

liaifat85

As far as I know, printf will not work in Arduino frameworks. Rather it should be Serial.print()

Code: Select all

#include <Arduino.h>

void setup() {
  Serial.begin(115200);
  Serial.println("Hello, world!");
}

void loop() {
  // Your code here
}

liaifat85

It's an ILI9341. This manual https://docs.espressif.com/projects/esp ... -connector
redirected me here: https://github.com/espressif/esp-idf/tr ... master/lcd

liaifat85

From the 2 datasheets it looks like, the dimensions are not the same. Slightly different.
https://fcc.report/FCC-ID/2AHMR-ESP32S/4169856
https://www.mouser.in/datasheet/2/891/e ... 365844.pdf

liaifat85

Are you talking about the ESP32-S2 series or S3 series?

liaifat85

Try to decrease the dma_buf_count and dma_buf_len values in i2s_config_OUT. See if it helps.

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