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Tag Archive for esp32arduino-esp32

ESP32-S3 delay before serial printing works

I need to see some feedback in my setup() code within Arduino framework, and am using a simple Serial.println(), but it never appears unless I add a delay. Sometimes even the Serial.println() in loop() misses the first few loops.

ESP32 Event Handling Button Press

Is there a reasonably easy way to create an event driven button press? I am using ESP-WROOM-32 ESP32 ESP-32S WiFi + Bluetooth Dev Board and Arduino IDE. I know that the loop speed is really fast but I’m planning on having the project do some other tasks while it’s waiting for the button to be pushed. Think of it as a slap button response (so the button will be pressed very momentarily). Below is a simple example of my current code … I’d like to replace the recursive loop with an event driven version so that with everything else going on, it won’t run the risk of missing a really quick button slap.

Hi, im building a basic IOT project but kept getting this “Write timeout” Error

WARNING: library LiquidCrystal I2C claims to run on avr architecture(s) and may be incompatible with your current board which runs on esp32 architecture(s).
Sketch uses 916781 bytes (69%) of program storage space. Maximum is 1310720 bytes.
Global variables use 43132 bytes (13%) of dynamic memory, leaving 284548 bytes for local variables. Maximum is 327680 bytes.
esptool.py v4.6
Serial port COM9
Connecting…

ESP32-WROOM-32DA IO pin 25 Always HIGH

I have esp32-wroom-32DA and i was connected one switch into IO pin 25 to take a digital reading. i already pull down that pin. the problem is digital read of this pin is always HIGH. i was check the connection between the switch and the pin even switch is off digital read of the IO pin 25 shows as HIGH. can anyone please help me with this mater.[ESP connection](https://i.sstatic.net/CbEyfgVr[![Dip Switch connection](https://i.sstatic.net/z1WRtUu5.png)](https://i.sstatic.net/z1WRtUu5.png).png)