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OK: A fatal error occurred: Timed out waiting for packet content 02.06.2020   1122 When loading a program zaround ESP32 DevBoard, the flash is aborted with the error message: Configuring flash size Warning: Could not auto-detect Flash size (FlashID=0xffffff, SizeID=0xff), defaulting to 4MB Compressed 8192 bytes to 47 A fatal error occurred: Timed out waiting for packet content A fatal error occurred: Timed out waiting for
OK: A fatal error occurred: Timed out waiting for packet content
Switch with ESP32 MosFET and high voltages with optocoupler 20.05.2020   780 Only GPIO2 or GPIO4 is connected to the IN1 and Ground on GND of the optocoupler At the bottom of the Oszilloscop you can see the voltage-decoupled signal at the high-voltage voltage and MosFET circuits The trick is to completely decouple the power supply for the MosFET and high voltage circuit and connect your own USB power supply
Switch with ESP32 MosFET and high voltages with optocoupler
Solution: ESP32 does not start because of Pin GPIO0 20.05.2020   899 Solution: ESP32 Pin GPIO0 Problem: ESP32 does not start in the program after installing download of a program Solution: The PIN GPIO0 G0 should not be used as it is used for booting and installing software, firmware, sketch programs for the BOOT signal
Solution: ESP32 does not start because of  Pin GPIO0
A fatal error occurred: Failed to connect to ESP32 20.05.2020   724 Fehler ESP32: A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header Cause: If the PIN EN is connected to GRD or GPIO0 G0 is connected to 3 3 Behavior: When uploading a new sketch program, the upload process remains stuck with the message
A fatal error occurred: Failed to connect to ESP32
Problem Issue: ESP32 no longer starts 20.05.2020   695 After pressing the RST button, the program gets stuck before the start or it looped all the time in the attempt to start The whole misconduct usually happens when you connect a working ESP32 DevBoard to the GPIO0 Before, everything works without any problems, but nothing goes after that It's like bewitched ESP32 NodeMCU DevBoard ESP32 Dev Kit WROOM32 4 ESP32 boards all with the same error
Problem Issue: ESP32 no longer starts
Solved: conversion from void to non-scalar type String requested bei String.replace und toLowerCase 06.05.2020   1451 Solved: conversion from void to non-scalar type String requested bei String replace und toLowerCase Error message: error: conversion from 'void' to non-scalar type 'String' requested
Solved: conversion from void to non-scalar type String requested bei String.replace und toLowerCase
Arduino Code: Declare an Enum Type, a Variable and Compare it 06.05.2020   1537 Arduino Code: Declare an Enum Type, a Variable and Compare it Arduino C Code-Sample 1 Declare an enum typdef 2 compare== the enum Arduino C Code-Sample 1 Declare an enum typdef 2 compare== the enum
Arduino Code: Declare an Enum Type, a Variable and Compare it
Connect ESP32 to Bluetooth, work and write and read commands 06.05.2020   795 ESP32 Code: Connect ESP32 to Bluetooth, work and write and read commands This code example shows whatyou can connect an ESP32 microprocessor to a smartphone and then send commands to control the application and read the jam ESP32 WROOM32 nodeMCU, Arduino, DevBoard, Serial Bluetooth Example : Send Start via theSerialBluetooth connection to start the application on ESP32 nodeMCU
Connect ESP32 to Bluetooth, work  and write and read commands
ESP32 Code: Create an output pulse with adjustable pulse width via button and display on LCD and digits 25.04.2020   697 Arduino ESP32 Code: Create an output pulse with adjustable pulse width via button and display on LCD and digits The following Arduino ESP32 nodeMCU code does the following (with Arduino ESP32 microcontroller code) Two buttons generate a pulse with an adjustable pulse width on a digital output pin Operation Output of pulse width in nano seconds on a
ESP32 Code: Create an output pulse with adjustable pulse width via button and display on LCD and digits

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